How to Make an Object VR Movie
Contents
1. Help Gid pjer K Acquire HotSpots Effects compose Preview 7 Mechanism None Selected Clear Edit Rotate Rotate All oe Single Multiple add multiple images or gt Label views by Angle v The VR ObjectWorx Acquire dialog box Go to the Acquire screen and click on Multiple An Insert Images dialog box appears Navigate to your folder with 36 images cropped resized JPEG format You can either highlight all of them and click Add or if there are exactly 36 images just click on Add 36 button Then click the Done button June 30 2006 20 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide ie inponiinaees Look in je 550 gt e EB S PICTOOO1 IPG FPICTOOO7 JPG W PICTOOI3 JPG W PICTOO19 IPG Bpicroooz 3e Wprctooos eg Wprctoo14 3eG E PICTO020 JPG Dpictoo03 3e Mpictoo0s 3es APICTONIS IPG MAPICTON2I IPG A PICTOOO4 JPG FIPICTOO1O IPG BIPICTOO16 IPG A PICTO022 JPG E E atalala aat a PICTOOOS JPG PICTOO11 3PG PICTOO1 JPG PICTO023 JPG PICTOO06 JPG PICTOO12 IPG PICT0018 JPG PICT0024 JPG E 2 B J Show Preview EJ E Files of type fan Supported Images hd Source Rotation C Documents and Settings kellye Desktop Images for YRSA Mo A Remove C Documents and Settings kellye Desktop Images for R All Mo m2. Object Object A Object A Original Images_600dpi_TIFF Object A_Original Images_600dpi_back up copy_TIFF Object A_edited_600dpi_full size_TIFF Object A_edited_72dpi_full size_TIFF Object A_edited _72dpi cropped to 800x600 JPEG Object A_edited _72dpi cropped to 600x450 JPEG Object A finished movie Object B Object B_Original Images_600dpi_TIFF Object B_Original Images _600dpi_back up copy_TIFF Object B_edited_600dpi_full size_TIFF Object B_edited_72dpi_full size_TIFF Object B_edited_72dpi cropped to 800x600 JPEG Object B_edited_72dpi cropped to 600x450 JPEG Object B_ finished movie June 30 2006 11 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide Images Organized by Steps in the Process Original Images 600dpi_TIFF Object A Object B Original Images back up copies_600dpi_TIFF Object A Object B Edited Images_600dpi_full size_TIFF Object A Object B Edited Images_72dpi_full size_TIFF Object A Object B Edited Images _72dpi cropped to 800x600 JPEG Object A Object B Edited Images _72dpi cropped to 600x450 JPEG Object A Object B Finished Movies Object A Object B June 30 2006 12 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide Mack 709370 Fle Edt View Favortes Took Heb Oa QF Pwa prams E Address C C Documents and Settings helyelDeshtopimages for VR AE Movie Files Black 703379 Mack 703379 550
3. edges which are easier to control when erasing large sections such as the pedestal or turntable Once most of the pedestal and turntable are gone change to a smaller brush size and change the mode from pencil to paintbrush This will soften the edges of the stroke so there are not any hard edges and it will look more natural If a portion of the object is erased by mistake you can restore those portions by using the Eraser June 30 2006 15 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide Tool s Erase to History option After you have clicked on that option you can un erase any areas of the image and restore the original image This is a great way to bring back edges or the very bottom two or three pixels of the object You can also use Photoshop s History palette to go back to any previous step in your editing process Editing is the most time consuming part of creating Object VR movies since you have to edit each individual image Depending on what kind of objects you are using in your project it may take several hours to do 36 or more photos Many factors influence the amount of time needed to edit The smoother the edges of the object the easier they will be to edit If it is hard to detect the delineation between the edge of the object and the pedestal then it may take longer to erase the pedestal and recreate the bottom of the object and make it look realistic
4. in the movie In order to create a smooth Object VR movie it is important that the camera remains firmly in place and steady when shooting This is why using a tripod is critical The easiest way to ensure that there is no movement of the camera when photographing is to use a remote control device to activate the camera This will keep the camera from moving as the shutter is released After setting up the backdrop the lights and the camera it is time to start capturing the images Image Capture Camera aperture and shutter speed Camera aperture and shutter speed will need to be manually set for each object you are photographing The automatic settings on your digital camera should not be used because the camera may change its settings as the object is rotated and the resulting series of images will not look like they have the same lighting This will cause the final movies to appear jumpy Consult your camera s manual to learn how to set the aperture and shutter speed Newer digital cameras have very clear LCD screens that accurately show you what your lighting will look like Unless the objects you are photographing are similar in size shape and color you will need to check and possibly change your camera s settings for each object June 30 2006 9 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide Using the Turntable Once your studio is set up the camera lighting and backdr
5. px wide Copy of Bick 703379 Bisck 703379 creeped E Mack 700979 cropped ond sized to 800 px ard sited to B00 px wide Copy of Black 703379 a C tack torn FOO Siok teen 703095 box 2 M110 Box 6 709137 a Grass 703102 gt Brass Box 703519 E dex 70336 a Gp 700129 use distinguishing adjective Conch 703100 and a unique tem number a Power 703101 when possible E Geen Gey 703388 E bong bad 703017 O Rae rom 7030 E C Retrat 703040 organize all folders B Q SMr 70D similarly to avoid Smatitern 703006 confusion a Wh Tape 703126 File Organization A simple way of organizing your folders is to give them names with specific descriptions or unique item numbers You will end up with more than one file per object so it is important to keep them organized Background and pedestal elimination Once your images are saved on your computer you can begin editing the images in an image editing program such as Photoshop This software will allow you to rotate or crop the images eliminate or alter the background eliminate the pedestal or turntable or clean up the images of your objects as necessary Just remember that your individual images will be stitched together to create an animated movie so any rotating cropping or color balance changes you make to one image must be made to all images For specific help in using Photoshop or other image editing software consult the H
6. the camera s viewfinder so that the turntable is not in the shot If your project does not allow time to edit each image consider using a black background Black is a good option because a black cloth can be draped over the turntable in order to hide it The camera will keep the black true and your images should not need much editing However not all objects may be fully visible against a black background Details will disappear quickly so make sure to check images before turning them into a final movie Make sure that enough light is available to pick up the fine details that you want your viewers to see Three Backgrounds Here is an example of how the background color can affect the clarity of your images An object can lose some of its detail when using a black background The white background makes the object pop out The unedited image can look unfinished but is still effective at showing all of the detail of an object Unless the object you are photographing is white a white background is the best option for making the objects pop off the screen in the final Object VR movie A completely white background is hard to achieve without editing Hanging a white or light colored sheet or seamless paper will give you an almost white appearance without much difficulty Another option for a white background is to bring the white backdrop away from the wall and light it from behind Make sure that the lights are far enough a
7. usually about 12 inches in diameter These fixtures can be clamped to light poles or any upright structure such as a bookcase Clamp light fixtures with tungsten light bulbs are often less predictable and harder to work with than professional grade light kits for example it may be harder to aim light on your object However with practice and patience these lights can be just as effective When using tungsten lights be sure to set your camera s light setting to Tungsten to ensure proper color Select tungsten bulbs that are at least 250 watts Halogen light kits can be purchased at a local photography store or from online vendors Halogen lights are very bright and work well One drawback depending on the model is that they have globes to fit over the bulb that are not always attached securely and can fall out of the fixture and break Light umbrellas should be used with halogen lights If the halogen lights do not come with umbrellas make sure to purchase some made especially for photography Light umbrellas are available in different colors and surfaces Umbrellas with silver gold or metallic interiors have a reflective surface which allow more light to bounce onto the object and may modify the color of light Reflective umbrellas may create a bit of glare on objects that are shiny A white umbrella diffuses the light more and creates a much softer light to be cast on the object It is recommended that you use two identical umbrellas
8. Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide How to Make an Object VR Movie Table of Contents Equipment Object Selection Getting Started e Choosing a digital camera e Choosing manual versus motorized turntable e Deciding on image resolution Setup e Finding a space for a studio e Lighting e Backdrop e Camera placement Image Capture e Camera aperture and shutter speed e Using the turntable e Uploading images to your computer Image Processing e Making Folders e Background and pedestal elimination e Alignment of Object e Cropping and resizing images Making the Movie e Using the software e Viewing the movies Viewing the Movie June 30 2006 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide Equipment Computer Either a Mac or PC will work for this project Make sure that all software is compatible with whichever computer you are using A large monitor is recommended for use during the editing phase of this project If at all possible try to use a 19 inch or larger monitor Lighting Tungsten bulbs Halogen bulbs Turntable Manual 15 inch Kaidan PiXi Motorized 10 inch Kaidan PiXi M Motorized Kaidan Magellan Desktop Turntable All of the above can be found at www kaidan com Camera If you are using a motorized turntable any digital camera that will link to your turntable is desired Othe
9. C Documents and Settings kellye Desktop Images for YRSA Mo Remove All C Documents and Settings kellye Desktop Images for YASA Mo C Documents and Settings kellye Desktop Images for YASA Mo C Documents and Settings kellye Desktop Images for YASA Mo s gi C Niaciiments and Settinnes kellie Nesktansimanes far VRSAI ao 0 degrees Cancel Import Images Dialog Box Make sure to select all the images you would like in your movie Keep them in the same order by pushing the Add 36 button June 30 2006 21 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide Go to the Compose screen You have the option to change the default compression of your movie Choosing a higher compression increases the file size of the movie but does not change the clarity of the zoom function in the finished movie Window Help Actions Composition Presets Click to choose a preset TE Compression Codec Photo JPEG I Target Size 5120 K iy oms Quality Medium 50 Color Depth 24 bit Milions Frame Size Auto push build BY pushing set will give you after selecting 5 eal this window your settings Gomnpression sertings ia Photo JPEG Depth Best Depth Quality Least Low High Best Options Cancel VR ObjectWorx Compose Dialog Box Make sure that the compression settings are what you des
10. Place your lights on each side of the tripod Lights should be mounted at 45 degrees to the lens axis and equidistant to the object This will provide even uniform lighting and should help to eliminate shadows Other lights can be used to fill if there are still shadows Windows and doors should be covered or closed to keep out most if not all natural light from the studio space After setting up the lights explore the camera s light settings Most cameras come with profiles for different types of lighting situations Change the settings and look to see which one produces an image that has the same colors as those you see with your eye This will keep your colors true Though you can photograph your objects using the digital camera s flash bulb we recommended that you use either tungsten or halogen lamps nI ij lt turntable Backdrop a with object 45 degrees WA 000 light diffusion N light camera June 30 2006 7 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide Backdrop A backdrop is optional Since editing the images is usually necessary a backdrop is not crucial However if the Object VR movies are to be used as instructional or educational tools and will not be posted on a public Web site the background may not matter These images can be captured against a wall showing the turntable if that is the desired result Or the object can be framed in
11. Users who are already familiar with Photoshop or another image editing program will be able to work more quickly than new users who are just learning to use the software Some images may take only 30 seconds to edit Others may take 10 to 15 minutes Alignment of Object If your object was centered on the turntable then it should be properly aligned in each of your series of images You can check to see how well your images are aligned by turning on the Rulers in Photoshop click on Show Ruler in the View drop down menu and setting guides for the center and edges of your object Individual images can be adjusted using the Move Tool and the right and left arrow buttons on your keyboard Cropping and resizing images Before you create the Object VR movie all the images should be sized to their final intended pixel dimensions If this is done in Photoshop the final image will be sharper than if it is done in VR ObjectWorx Determine what the final pixel dimensions of the Object VR movie should be For Web presentation this can range anywhere from 200 to 800 pixels wide depending on the browser resolution of your intended audience You may consider providing two sizes of Object VR movies one suitable for users with browsers set to the smallest screen resolution 800x600 pixels and a larger version better suited for users with browsers set to higher screen resolutions such as 1024x768 pixels or 1152x864 pixels Make sure to crop your imag
12. Z 6 0 File Edit Utilities Scripts Window Help Giad Ojari stup CS Acquire Hot Spots Effects t Compose Preview Source Image Format Object Rig Image Size Auto x Mechanism None x Source PLUG IN Image File 7 Setup Setup default settings Object Geometry Horizontal Settings Columns Sweep 360 Centered at o da my Columns 36 M Frame Layers 1 v ran Spacing 10 ees where the movie Advance Views Horizontally will start number of Vertical Settings Rows images Sweep 0 Centered at o Rows fi Spacing 0 The VR ObjectWorx Setup dialog box On the Setup dialog box set Image Size to Auto The Source should be PLUG IN Image File Object Rig Mechanism should indicate None Object Geometry settings reflect the number of images to be stitched together and the degrees of rotation For a single rotational view June 30 2006 19 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide of an object with 36 images taken at 10 degree intervals set the Sweep to 360 degrees Centered at 0 degrees The Columns setting reflects the number of images set it to 36 Frame layers should be set at 1 Set Advance Views to Horizontally The Vertical Settings Rows should be set to 0 The VR Worxy2 6 0 File Edit Utilities Scripts Window
13. al image viewed on a computer monitor Shiny black surfaces can create washed out areas or bright spots in a digital photograph Reflective or shiny metallic surfaces of any color are difficult to photograph reflected light can make parts of the surface seem washed out These types of problems can generally be solved by adjusting the lighting Diffusing the light source helps with shiny objects With flat black or colored surfaces increasing the amount of light and reflection will help make the object appear three dimensional If your object is white in color a black or dark gray backdrop may be needed Make sure that your objects are clean before you start photographing It is easy though time consuming to edit out unwanted elements in Photoshop or other image editing software programs It is much easier to clean off a bit of dirt before you begin photographing Getting Started Digital Camera If you are thinking about purchasing a digital camera consider the following How many megapixels of resolution do you need Will the images be used for preservation copies or be used for Web based presentation only Can the camera be mounted on a tripod Does the camera have a remote control Will the camera be used for other types of projects after your Object VR project is over Are there reviews available for the camera How well is the camera reviewed Is it user friendly Turntables When deciding whether to use a manual or
14. ecorded changes and save the fixed image to the destination folder Play Set Default Actions atn v Action 600 Sf M Source Folder v Choose C Documents and Settings Box 2 7031104800 Override Action Open Commands Tl Include All Subfolders I Suppress Color Profile Warnings make sure to have the correct Destination Folder 7 d files Choose C 5 B0x 2 7031105450 tall F Override Action Save In Commands File Naming Example MyFile GIF Document Name z EXTENSION z Compatibility 7 windows M Macos Unix M Errors Stop For Errors q ha make sure to stop for errors Automate and Batch your Actions This dialog box directs what Actions sequence will be applied to which designated set of images and where those edited set of images will be saved June 30 2006 18 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide Repeat the above steps to resize your images Or you can include both the cropping and resizing of images within the same Action When resizing images make sure that the Constrain Proportions box is checked Making the Movie Using the Software Once your images are cropped and resized making the Object VR movie is quite simple using the VR ObjectWorx software Before you start create a separate folder for your finished movies ThoNR Worxv
15. elp menu of the software or any of the many online reference guides and tutorials The following instructions refer to Photoshop 6 0 and present only one of many ways to edit your images June 30 2006 13 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide c Adobe Photoshop File Edit Image Layer Select Filter View Window Help B ar e Tolerance 30 IV Anti aliased V Contiguous Use All Layers a PTM JPG E 25 4 RGB aap 0 eS a T E TTT a tolerance contiguous background color Bl E z E i Pd Magic Wand Make sure to note where these buttons and options are for the Magic Wand Tool If you are using Photoshop CS or CS2 the display will be slightly different Open your first image You can use the Magic Wand Tool to change the background color surrounding your object The Magic Wand Tool is used to select specific areas in your image based on the color and brightness similarity of adjacent pixels Since you are interested in choosing only colors in the background make sure to check the Contiguous box Enter 30 in the Tolerance field Click anywhere in the background to select the area around your object If the selection has taken away some of the edges of your object try decreasing the number in the Tolerance field Don t worry if some of the object is selected it can be brought back later using the Erase to History opti
16. er image size and then save your images at 72 dpi for Web presentation Setup Photography Studio Here is example of a simple studio setup one set of lights the camera on a tripod and the object placed on a turntable on the table with a white backdrop Studio Setting up a small photography studio is not difficult A space with low to no natural light is recommended For example a large closet or a basement works very well The studio used for our project was approximately 8 1 2 x 16 feet Ifthere is no space available without windows you can fashion light barriers with dark fabric or paper Another option is to photograph the objects after sundown Make sure that there is a level surface for placing the turntable and enough room to have at least two lights on stands The tripod and camera need to be far enough away that you can capture the entire object at each rotation Lighting June 30 2006 6 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide An inexpensive option is to buy tungsten light bulbs at a local photography store They are a few dollars and can be placed into any industrial clamp light fixtures which are usually available at a hardware store When buying clamp light fixtures make sure to buy ones with a ceramic base instead of a plastic base They are a few dollars more but will not melt when using high wattage bulbs Make sure to purchase large clamp lights they are
17. es before resizing Photoshop has an Actions function which allows the automated batch processing of images Both the cropping and resizing steps can be done using an automated action sequence and can be combined into the same sequence or can be applied separately June 30 2006 16 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide 1 Make a new file folder for your History y object with cropped or smaller gt Sur A E e e for movie in the name gt Quadrant Colors 2 Open the Actions palette either Db Save As Photoshop PDF from the Window dropdown gt Gradient Map menu or the tab at the top of the v 550 History palette 7 b cknavs tine 3 Open the first image in your ai T aH sequence it is important to open Y D Image Size this image before creating the Y Action 1 action D Crop S gt Image Size 4 Click on the create new action 7 per icon at the bottom of the Actions palette gt Image Size 5 Name the action to describe what gt Image Size the action does j action controls new action button 6 Using the Crop Tool crop the image making sure that it is wide enough so that when a different image with a different view of the object is within that box all parts of the object will fit For example when taking a photo of a trumpet it will be very wide at one point and very na
18. g the File Save As option This is useful if you would like to further edit the movie at a later time VR ObjectWorx allows you to create Hot Spots hyperlinks within your Object VR movies Text annotations providing name copyright and description can be embedded in the movie Consult the online tutorials or Help menu to learn about this and other effects that you can include in your movies The stitching together process of making Object VR movies is very quick Using VR ObjectWorx takes only a few minutes for each movie June 30 2006 23 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide Viewing the Movie VR ObjectWorx creates movie files mov that are viewable using the QuickTime viewer which is available free from Apple and is compatible with both PCs and Macs These movie files are also viewable using the RealOne Player though QuickTime is recommended Other Object VR software may create movies that require a different viewer In addition Flash MX can be used to convert several different movie formats mov avi mpg wmyv into files viewable using a Flash player rather than media players such as QuickTime RealOne Player or Windows Media Player If you are incorporating Object VR movies into a Web based project be sure to note which viewers are required and provide hyperlinks for your users to download the necessary plugins June 30 2006 24
19. higher the resolution the greater the detail you will be able to capture in your image Resolution also affects the enlargement of pictures If the images will serve as archival copies they should be made at a high resolution and large image size to allow for the greatest amount of detail When you save the images on your computer save as 600 dpi TIFF images Ifthe images will only be used on a Web site as an Object VR movie the images could be shot at a lower resolution or image size and then saved on your computer as 72 dpi TIFF images The standard for images presented over the internet is 72 dpi JPEG so images saved at a higher resolution will need to be converted to or copies saved as 72 dpi JPEGs for Web presentation The ultimate interactive movie may consist of 36 or more images so file sizes can be very large and may take a long time to load However if download time is not an issue for example the interactive movies are to be used over an intranet system or only by users with T1 connections larger file sizes may be acceptable There is an advantage to higher resolution images because they will have much better zoom capability June 30 2006 5 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide Keep in mind that it is easier to edit higher resolution images in Photoshop or similar image editing programs You may prefer to photograph and edit using a higher resolution and larg
20. ire for your movie and then press build You can always go back to this step if you want to change the compression Medium compression should be a suitable choice for most Web presentation applications Click on Build June 30 2006 22 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide The VR Worx y2 6 0 File Edit Utilities Scripts Window Help SF Untied Oijser e Acquire Hot Spots Effects F Compose resize your movie saveas QuickTime movie Annotate Interaction eo Animation Data Rate Special Views Poster Set Go Initiat Set Go 4 preview your movie by panning side to side Est Size 508 4K Pan 180 0 Tilt 0 0 Zoom 128 0 Dimensions 550 x 454 VR ObjectWorx Preview Dialog Box Make sure to enlarge you viewing area of the movie to bring it to its full size before exporting it out of the program as a QuickTime file mov Save this file as a VR ObjectWorx Project Document orx if you would like to go back and change something later Go to the Preview screen to preview your interactive movie You can use the Resize option to change the dimensions of your movie though this is not recommended Click on Export to save your finished movie as a QuickTime file mov Be sure to save the movie to the appropriate folder of finished movies You can also save the movie as a VR Worx Object Project Document orx by usin
21. motorized turntable consider the following How many object movies do you want to include What is the average physical size and weight of the objects Are you presenting a view of one rotation of the object or top to bottom views as well How much does your budget allow Is portability an issue Will you be moving your studio How much time is allowed for this project Will the turntable be used for other applications after the project is over June 30 2006 4 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide A manual turntable is an excellent choice for a beginner and for projects with small or medium sized objects It is lower in cost and more lightweight and portable than a motorized turntable Objects can be accurately rotated at increments of 5 or 10 degrees The manual turntable also allows the user to take time between each shot because it does not automatically turn after a prescribed time delay The photographing process may take longer but the user controls every step A 15 inch manual turntable works well for small to medium sized objects Large objects are more difficult to photograph on a manual turntable because they may overlap areas of the turntable that are crucial for turning Using a motorized turntable takes more planning and a larger budget However it can be a better option for a large project or one that requires both rotational and top to bottom views of objects A
22. ngton University School of Medicine Object VR How To Guide Equipment cont Museum Sticky Wax e Museum wax is an inert white wax that you can use to secure the artifacts to the turntable and is available from archival and library supply vendors Camera Tripod e A tripod is essential as it keeps the camera steady and firmly in place when photographing thus producing a smooth Object VR movie There are many models of tripods available Pedestal e A pedestal that mounts to the turntable allows you to both raise the object off the turntable and to keep the object exactly centered You can also raise your camera to a more comfortable height and reduce the amount of extraneous material in the image frame Backdrop optional e Professional cloth or paper backdrop available at photography shops e Sheet or cloth e Poster board e Butcher paper Note If you plan to edit your images to eliminate the background completely for instance to make your objects appear to be floating then a backdrop is not necessary We recommend that you just try to use a light colored neutral background Light Meter optional Most digital cameras are equipped with internal light meters which should be sufficient to determine the appropriate aperture and shutter speed Read your digital camera s user manual to find these functions Object Selection The size shape color and number of objects you wish to include in your Object VR project will de
23. o your computer you will need to remove the memory card from your camera and upload the images to your computer using a card reader You may not be able to replace the camera on the tripod at exactly the same position in this situation Depending upon the preferences you have set on your computer you will probably be prompted to open a folder for your images PC or be prompted to save your images in iPhoto Mac Save the images in a folder and clearly indicate that these are the original photographs taken of the object During the image processing steps you will be creating several versions of these original images It is best to keep each complete group of images in separate folders Note Save your original images as TIFF Tagged Image File Format tif images This is an uncompressed or losslessly compressed format therefore your images can be altered and resaved without degrading the image After your June 30 2006 10 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide images have been altered rotated cropped levels adjusted etc you can make JPEG Joint Photographic Experts Group jpg copies from which to create the actual Object VR movies JPEG is a lossy compressed file format and is a standard for Web delivery of graphics and images As compressed files JPEGs have a smaller file size and thus download more quickly However some information and image quality is los
24. on of the Eraser Tool Keep the tolerance high enough so that the Magic Wand is actually selecting most of the background This can be a tedious back and forth task but remember that portions of the object can be brought back later June 30 2006 14 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide Set the background color on the Photoshop Tools Bar to white or other desired color Once the background area has been selected using the Magic Wand tool hit the delete key This will change the background to white or other desired color Once the background color has been changed the pedestal turntable and any museum wax can be erased and any parts of your object eliminated by the Magic Wand Tool can be restored This can be done with the Eraser Tool c Adobe Photoshop File Edit Image Layer Select Filter View Window Help amp Brush Mode Pencil z Opacity P Wet Edges I Erase to History ne Mm ce st S se SIG TOTP era z RGD Fax o Ee ee ere fe fie fe Ae E hr Tae brush stroke brush style erase to histo size slaj Shafei PAS eraser tool Gy erase large portions first Slee jo DIJZ i L i ue Eraser Tool Note the location and different options for the Eraser Tool Select the Eraser Tool and set the brush stroke to a large size such as 100 200 Select pencil from the Mode option This will create hard
25. op in place the actual taking of photographs is easy Make sure that the turntable is set to 0 degrees The object should be placed either directly on the turntable or on a pedestal exactly in the middle of the turntable This will keep the object aligned during the rotations At each 10 degree turn or whatever increment you choose for your project capture an image When rotating the turntable the object might teeter slightly make sure to wait until the object is still before snapping the next photograph If the object is teetering excessively use more museum wax or other adhesive to anchor it more securely However the less museum wax or adhesive used means less wax or adhesive to edit out later in Object on the Turntable Photoshop Try to keep the wax on the bottom Raising the object off of the turntable allows the of the object and not visible seeping out from the camera to be at a more comfortable height for the sides or bottom of the object photographer Uploading images to your computer After you have captured your images for example 36 photographs taken at 10 degree increments for one full rotational view transfer the images to your computer using a USB cable Do not move the tripod camera lights or object you may need to re shoot one or more photographs Most digital cameras should come with a cord that will connect the camera directly to a computer If you cannot connect your camera directly t
26. rrow when looking down the bell Make sure that if the first image is looking down the bell that the cropped rectangle will be wide enough for when it is turned to the side Following is an example of what can happen if you do not consider the different sizes of an object at different angles One frame contains the whole object in it while the other one does not Cropping Make sure to leave enough room to capture the entire object at every rotation This is important for objects that are not perfectly square or round June 30 2006 17 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide 7 Once the image has been cropped end the recording action with the Stop button a square shaped icon at the bottom of the Action palette See above illustration 8 Go to the File dropdown menu and choose Automate gt Batch 9 A window will pop up that asks what files you would like to automate and where they should be saved Find the file where you have saved all the edited images and choose that for the Source For Destination find the new file named cropped or smaller for movie All other information should stay the same However if part of the Action you have created includes a Save As command for example changing from a TIFF to a JPEG image check the box Override Action Save in Commands Photoshop will open each file from the Source folder make all the r
27. rwise any camera that is user friendly and easy to operate is suitable It is recommended to use a camera with 3 0 or more megapixels of effective resolution If you capturing digital images for archival purposes use the highest resolution camera available in your budget Software Photoshop or other image editing program This is required for editing the final images after they have been uploaded onto your computer and before they are stitched into a final movie VR ObjectWorx This program creates the interactive movies for the user There are other software programs that can be used to create the interactive movies such as QuickTime VR Authoring Studio VR PanoWorx and Widgetizer Each program compresses the image for the movie in a different way creating files that may not be viewable on all media players If your Object VR movies are to be presented on the Web make sure that you identify which media player is required for viewing and provide a link for users to download the program QuickTime or other media player software This allows you and your users to view the movies once they are completed VR ObjectWorx uses QuickTime as the default movie viewer eMCee Motion Control Software This software controls the movement of a motorized turntable and the time delay between movements allowing automated image capture Kaidan provides the eMCee software with its motorized turntables June 30 2006 2 Bernard Becker Medical Library Washi
28. simple rotational view of an object may require capturing only 36 images one every 10 degrees of rotation A top to bottom view may include up to 648 images 18 sets of rotational views taken at 10 degree increments from top to bottom A motorized turntable works well with larger objects that may hang over the edges of the turntable the user does not need to access any part of the turntable while the object is being rotated and photographed A motorized turntable allows the user to choose more precisely the rotation of the object anywhere from 1 to 360 degrees It also can be set to rotate and pause at timed intervals With motion control software it can be integrated with the digital camera and image capture allowing full automation of the process For example the turntable could rotate every 8 degrees with a 5 second pause between each shot Note The motorized turntable and motion control software must be compatible with the camera in order to fully automate the image capture process Be sure to check the software specifications for a list of compatible digital cameras Image Resolution Before taking any photographs consider the ultimate uses of the images The image resolution measured in pixels per inch ppi or dots per inch dpi and image size will need to be set on the camera before you start shooting The resolution of a digital image is a measure of image sharpness based on the number of pixels in each inch in the image The
29. t every time a JPEG is saved because the JPEG is recompressed each time Therefore it is highly recommended that you edit your images in their TIFF format and then save them as JPEGs Review your images to make sure you are pleased with them For example make sure that the object is fully visible in each shot and that no edges have been cut off If there is an image that is not right for example the image is blurred or a hand was caught in the frame go back and retake the image while the lighting camera and object are in place There is a simple way to determine at what degree a shot was taken by counting what number picture it is If you shot photographs at 10 degree increments your first shot was taken at 0 degrees rotation the second at 10 degrees etc If you want to retake picture number 7 then rotate the turntable to 60 degrees Repeat the above for each object and remember to change the lighting camera placement and camera settings for each object as necessary Image Processing Making Folders Keeping your images organized is critical because of the large number of images necessary to make Object VR movies You can organize your images by object or by steps in the process We do suggest that you keep backup copies of all of your original photographs Be consistent with your naming conventions For instance refer to all objects by a unique item number or refer to all objects by a unique descriptive name Images Organized by
30. termine the equipment you need A 15 inch manual turntable works well with objects that are about 15 inches in length or diameter or smaller Larger objects may be difficult to securely anchor or to balance on a smaller turntable because of uneven weight distribution Large or unwieldy objects may overlap the sides of a small manual turntable making it difficult to rotate A larger manual turntable or a motorized turntable would allow you to more easily photograph larger objects To prevent permanent damage to your artifacts use museum wax inert white wax to anchor the artifacts on the pedestal when shooting If you are not working with artifacts or are not June 30 2006 3 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide concerned with permanent damage to the object you may try using a stronger adherent such as hot glue to anchor your objects and keep them steady A stronger adhesive would allow easier capture of larger unwieldy or irregularly shaped objects Small objects pose fewer problems As a rule they can be easily posed and anchored by museum wax The only limitation to how small an object can be included in your project is the zoom capability of your digital camera The color and surface of your objects may present challenges and influence the choice of backdrops Black can be a difficult color to photograph Flat black surfaces can make an object appear two dimensional in a digit
31. way from the back of the cloth or paper in order to eliminate bright hot spots of light This will require two sets of lights Yet another option is to bring the object away from the background and light the backdrop separately from the object This will also require two sets of lights This can be combined with the former option for a truly white background Be careful that none of the light on the backdrop June 30 2006 8 Bernard Becker Medical Library Washington University School of Medicine Object VR How To Guide floods onto the object or your object s edges will begin to disappear Be sure to preview your images to check your camera s aperture and shutter speed you may have to experiment with different settings to achieve the desired effect A professional photographer or a local photography shop may be a good resource in helping with suggestions on how to create a white background However if you are editing out the turntable and pedestal the background can be edited as well and a completely white background achieved Camera Placement The camera and tripod should be placed directly in front of the object Make sure that they are far enough away so that the entire object is contained within the image frame when the camera is set at its widest angle If you are capturing a single rotational view of the object make sure that the camera is directly level with the object This will keep the object s motion more realistic
Download Pdf Manuals
Related Search