Image Processing Reference
J-1 Source-Video Formats (Continued)
The professional variant of the DV format marketed by Panasonic,
Philips, Ikegami, and Hitachi. DVCPro is compressed but only contains
I-frames. The compression ratio is 5:1 and the codec is a special
DVC-format DCT. The throughput is 25 Mbps video-data rate.
A high-definition variant of the DVCPro format.
A Sony format that has a 7:1 compression ratio and stores
high-definition TV on Betacam tapes.
An I-frame based codec with individual frames coded using JPEG.
An I-frame codec developed by Apple and Pixar with the individual
frames coded using wavelets.
An improved version of VHS, which yields usable video
An ancient analog format, no longer used but there may be
significant amounts of archived material in this form.
A domestic format of average to low quality. Tapes can be recorded
in SP and LP modes. These tapes are not a good source of video for