Title :
Video quality enhancement for Motion JPEG2000 encoding based on the human visual system
Author :
Miyamoto, Ryusuke ; Hayashi, Yoshiteru ; Tsutsui, Hiroshi ; Masuzaki, Takahiko ; Onoye, Takuo ; Nakamura, Yukihiro
Author_Institution :
Dept. of Commun. & Comput. Eng., Kyoto Univ., Japan
Abstract :
A novel Motion JPEG2000 encoding method is proposed, which is based on the human visual system being insensitive to high frequency component of image. This method enhances subjective video quality by controlling bitrate of each region, such as a tile or a code-block, or each wavelet coefficient according to its amount of motion. The proposed method can encode video streams whose subjective quality is the same as that by existing method at lower bitrate.
Keywords :
code standards; discrete wavelet transforms; human factors; image enhancement; image sequences; video coding; Motion JPEG2000 encoding method; bitrate control; code block region; high frequency component; human visual system; image sequences; tile region; video quality enhancement; video stream encoding; wavelet coefficient; Bit rate; Encoding; Frequency; Humans; Image coding; Motion control; Streaming media; Tiles; Visual system; Wavelet coefficients;
Conference_Titel :
Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on
Print_ISBN :
0-7803-8660-4
DOI :
10.1109/APCCAS.2004.1413091
