Frequently Asked Questions

Camera

	How many digital video cameras can I use with a desktop system to capture live synchronized videos?
	How many digital video cameras can I use with a notebook to capture live synchronized videos?
	Can I use any kind of digital video camera?
	Can the cameras be from different manufacturers?
	How many cameras are necessary to calculate 3D data?
	How are the cameras connected to the computer system?
	I have an IEEE-1394 FireWire PCMCIA Card that has 2 adapter ports. Will the software recognize the different 1394 ports on the 1 PCMCIA card, or do I have to have 2 individual PCMCIA cards to control 2 DV cameras?
	What file format does the program save the captured videos in?
	Can I use analog cameras?
	Can I use high-speed cameras from Redlake, etc.?
	Besides capturing live images, can images also be downloaded from a DV tape?
	Can repeaters be purchased at Radio Shack to extend cable length?
	Does the software allow extraction of the individual fields in the JVC-9800 high-speed mode? Can it re-arrange them consecutively at 240 Hz?
	What is the resolution of the images when captured in high-speed mode at 240 Hz with the JVC-9800? My understanding is that in high-speed mode, the CCD splits the image either horizontally or vertically for 120 fps, and both horizontally and vertically for 240 fps. I assume that this cuts the resolution of the picture in half as the camera is only using half of the CCD for each split. I am curious how much the increased resolution of the progressive scan CCD is offset by the reduction of the resolution in the high-speed mode.
	You claim that individual frames captured from high-speed JVC cameras (240 Hz) can be displayed. However, the JVC GR-DVL9800 video camera only has a max shutter speed of 1/250 sec, which is not fast enough for our needs. Can you suggest any other video-cameras that have a higher-speed capability (>60 fps) and a higher shutter speed (1/1000 sec)? I have a Canon Optura that records at 30 fps in progressive scan, but I do not believe that it can display frames at a higher speed.
	What pixel size and frequency do PAL and NTSC have?