Originally Posted by Adam Wilt

The HPA Tech Retreat is an annual gathering in the desert east of Los Angeles (in a posh resort, mind you; it’s not like we’re out sitting in the hot sun among the Joshua trees) where film and TV industry folks discuss all manner of technical and business issues. There are two parallel Monday sessions, an ATSC meeting and a tech talk; I attended the tech talk. Charles Poynton and John Watkinson discussed Physics, Psychophysics, and Vision for Advanced Motion Imaging. I took notes, which I reproduce here.