User Manual
Contents
1. VidFspot Horizontal Field of view VidFspot Vl Horizontal Field of View www vidFspot com info vidFspot com 2 17 2015 Video Follow Spot VidFspot is windows based system for remote control of one moving light to be used as follow spot Video Follow Spot Video Camera Horizontal Field of View System setup for measuring horizontal field of view is given figure 1 1 When measuring video camera horizontal field of view first connect the camera to computer and point the camera towards the wall Horizontal field of view that we will measure is also showed in this figure Horizontal field of view Lower left corner Figure 1 1 System description for measurement Start the video player application and place the video player window in any position on desktop see figure 1 2 Set to camera to have widest field of view Start vidFspot software and select System Settings on a toolbar First thing that need to be done 1s to define the video frame Video frame is a frame that actually displays the video We will do that by marking the Upper right corner and Lower left corner of the video frame Select the Screen Upper Right Corner check box and move a mouse pointer over upper right corner of the video frame Now press the ctrl button Program will display the coordinates of this point Now select Screen Lower Left Corner check box and move a mouse pointer over lower left corner of the video2. frame Now press the ctrl button Program will display the coordinates of this point Program will also calculate screen center coordinates 1 l Page Video Follow Spot Video Camera Horizontal Field of View Press Save button and then press v key Coordinates of these points are saved and video frame is displayed It is mandatory that video frame in red color and video player borders must overlap MAC 250 X 2 100 100 2 Logitech Webcam Software Controls Webcam Logitech HD Pro Webcam C910 J Follow my face _ RightSound J RightLight J Auto focus Motion Videos Here is one example of well marked video frame Now turn off red video frame uncheck Video frame check box Now use tree calibration grid sheets and tape them to the wall All grids must be on the same height from the ground and camera also must have this height also V camera V grid Video Follow Spot Video Camera Horizontal Field of View Figure 1 2 Camera alignment Align the camera in position as showed on figure 1 2 grid d de amera D Figure 1 2 Camera alignment Measure these two distances 3 lPage Video Follow Spot Video Camera Horizontal Field of View camera distance from camera ccd chip to the wall deria distance between two video centre point and edge point Horizontal field of view is calculated as HFoV 2 arctg A camera Note Please make shore t
3. hat camera is looking directly in the wall 7 a ri Fi j Fi ri f W ff h j rd is F as ff i Pi Y Pi Fi ss F Es Fi L p A VidFspotHorizontal Field of View www spotrack com info spotrack com 3 21 2015 4 1 Page
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