Compression for digital cinema cameras, part 1

摘要

From the introduction of the DV format, most camcorders have used DVC, MPEG-2 or MPEG-4 (H.264/AVC) compression. These codecs can be placed into one of two categories: intraframe and interframe. Color sampling is 4:1:1, 4:2:0 or 4:2:2. Data depth is 8 bits or 10 bits. This orderly world of compression is being replaced by one with far greater variety as high-end shooters adopt dieital cinema tools.