Trivisio Camera Comparison

© 2006 by EST · Last updated: 04.03.2008
Camera Comparison:

The integrated color cameras are availble in two different versions:
  • Analog (PAL or NTSC)
  • Digital (USB 2.0)

For most mixed reality applications the camera signals must be digitized to superimpose the image by computer generated signals. If using analog cameras this can be done by frame grabbers such as TV-cards or graphic cards with integrated video-in functionality or by special grabbing hardware. If moving the head fast (rotating from left to right) the disadvantages of PAL/NTSC cameras are interlaced artefacts which decreasing the quality of image recognition.
Camera Type PAL NTSC USB 2.0 USB 2.0+(new) Lipstick PAL Lipstick NTSC
Resolution 768x576
470 TV lines		 640x480 640x480 640x480 (754x482 array) 752x582
480 TV lines		 768x494
480 TV lines
Chip 1/3" CCD 1/3" CCD 1/3" CMOS 1/3" Wide CMOS 1/4" Color IT CCD 1/4" Color IT CCD
Sensitivity 0.8 Lux @ F1.2 0.8 Lux @ F1.2 ~ 5 Lux @ F2 ~ 1 Lux @ F2 1.1 Lux @ F1.2 1.1 Lux @ F1.2
Refresh Rate 50fps interlaced 60fps interlaced 48fps progressive, bayer pattern 69fps progressive, bayer pattern 50fps interlaced 60fps interlaced
Shutter ? ? rolling global ? ?
Output Signal/Plug PAL / RCA (Cinch) NTSC / RCA (Cinch) USB 2.0 (USB Mini-B) USB 2.0 (USB Mini-B) PAL / BNC NTSC / BNC
Output Stereo-Version 2 independent PAL 2 independent NTSC single USB (optional 2 independent USB) single USB (optional 2 independent USB) / /
S/N Ratio >52dB >52dB n/a n/a >48dB, AGC Off >48dB, AGC Off
FOV diag 40° 40° 52° 52° 53° 53°
Lens f=8mm
M12x0.5		 f=8mm
M12x0.5		 f=6.6mm
M9x0.5		 f=6.8mm
M9x0.5		 f=4mm
Micro		 f=4mm
Micro
Gain/Whitebalance automatic automatic manually by software automatic or manually by software automatic or manually or push-to-set automatic or manually or push-to-set
Power Consumption 1W
(12V/90mA
from HMD)		 1W
(12V/90mA
from HMD)		 1.3W
(5V/270mA
from USB port)		 ? 2.6W
(12V/220mA)		 2.6W
(12V/220mA)

In some HMD designs the lenses can be changed manually by user.



Subject to technical modifications
All proprietary names and product names are trademarks or registered trademarks of their respective owners. EST doesn´t offer any guarantee for the technical details of the manufacturers.