chapter  16
44 Pages

Video Scanning Format Conversion and Motion Estimation

Video standards have been designed in the past to strike a particular compromise between quality, cost, transmission, or storage capacity, and compatibility with other standards. The three main formats that were in use until roughly 1980 apply picture rates of 50 or 60 Hz for interlaced video, and 24, 25, or 30 Hz for film material. Conversion between these formats was required for movie broadcast and international programme exchange.