So, here I am enduring the cold Canadian winter chill for the sake of better slow motion video... First off, the camera is tripod mounted. The first 2 clips use a simple texture in the background (snow) The following 3 clips then use a more complex textured background (buildings, chainlink fence & a moving car). The experiment is to find what type of visual anomalies the motion compensation algorithm will add when recording biometric motion on various backgrounds. The conclusion? The ability of the algorithm to properly predict the biometric motion vector is compromised by the slow frame rate of the original capture (60 fps) regardless of the background's texture density. However, It would seem that the algorithm is well suited for processing motion of slower movements on either type of background. In other experiments I have done, I've found that for a fluid biometric capture, your frame rate needs to be a minimum of 6 times higher (180 FPS). This is far beyond the capability of any NTSC or PAL camera system. In order to reach frames rates above 60 FPS your will need to use a more specialized type of camera system. I use a Lumenera LU175 Lumenera.com With this camera I can reach frame rates up to 873 FPS (at a much reduced resolution of 120x160 B/W). At a resolution of 320x240 I can reach rates of about 330 FPS which is suitable for biometric capture and analysis without using any motion compensation at all. The further use of motion compensation on video recorded at this higher frame rate would allow for a very fluid video that looked like it was recorded in the range of 1000 to 2000 FPS. Casio will soon be introducing the EX-F1, a 6 megapixel digital still camera that will be capable of high speed video capture, from 60 fps to 1200 FPS (at reduced resolution). This camera's sticker price will be around $1000 to start. This is quite a bargain considering that even the most basic dedicated high speed video systems start at around $7,000 US and can go well above $200,000. Along with the Lumenera product line, you can also look at Sumix.com, they are another manufacture of affordable USB CMOS cameras that are capable of high frame rates. It must be noted, if you plan to use a high speed USB camera you will need one of two things... a RAID hard drive setup (expensive, but powerful) or a RAM disk configuration (affordable, but more limited ) for your computer. These camera generate HUGE amounts of data very quickly and these are the only ways I know how to capture the data stream without dropped frames. These video clips were recorded using a shutter speed of 1/2000sec using the Canon HV20 camcorder. The footage was then processed with Vegas 8.0, AviSynth and VirtualDub. I used the Huffyuv Lossless codec for intermediate editing and then Divx Pro for the final render that you see here... Please be sure to download the video to see the full quality that is possible. You can read the discussion about this process here... hv20.com/showthread.php?t=7759