Efficient rate control for motion JPEG2000
Woei Chan, Axel Becker · 2004
This paper describes the efficient rate control for motion JPEG2000. Motion JPEG2000 is a video compression scheme whereby each frame of a video is encoded with JPEG2000 (in a still image mode) and the resulting compressed frames wrapped in a file format to produce a compressed video stream. A rate control technique recommended by the JPEG2000 standard to maximise image quality at a given rate is called post-coding rate distortion optimisation. This technique minimises the amount of over-coding in the arithmetic encoding step while maintaining image quality is proposed. The image quality using the proposed rate control scheme is comparable to that of using PCRD-opt as recommended by the JPEG2000 standard and is about 30% faster.