Higher speed and scientific cameras tend to be black and white to increase sensitivity, speed and pixel count. Looks like the camera they used is also B&W in th

Higher speed and scientific cameras tend to be black and white to increase sensitivity, speed and pixel count. Looks like the camera they used is also B&W in this case. This is why colors wouldn't be practical. Also, when you're tracking things in high-ish speeds, motion blur can shift colors because of Bayer filtering, when you're looking from that distance. Yes, demosaicing will remove the shift, but the resulting color might be different. So, B&W is the safest bet with minimum technical complexity. Addenda: Oh, I missed the IR lighting, too. Color IR is hard. These guys do it: https://kolarivision.com/articles https://kolarivision.com/articles