Title :
DCT-based intraframe coding using block grouping algorithm
Author :
Weng, Shid-Ku ; Tsai, Jyi-Chang ; Hsieh, Cham-Heh ; Jou, Yue-Dar
Author_Institution :
Dept. of Electr. Eng., Chung Cheng Inst. of Technol., Taoyuan, Taiwan
Abstract :
This paper presents a new DCT-based intraframe coding algorithm. The algorithm exploits the interblock correlation by grouping the similar blocks in an image into a category. The center of a category is then encoded with the JPEG algorithm. Simulation results indicate that the proposed algorithm improves the compression efficiency significantly at low bit rate, as compared to JPEG
Keywords :
data compression; discrete cosine transforms; image coding; transform coding; DCT-based intraframe coding; JPEG algorithm; block grouping algorithm; compression efficiency; encoding; image category; interblock correlation; low bit rate; simulation; transform coding; Bit rate; Discrete cosine transforms; Electronics packaging; Engines; Entropy; Hardware; Image coding; Pixel; Transform coding; Video compression;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1996. PIMRC'96., Seventh IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
0-7803-3692-5
DOI :
10.1109/PIMRC.1996.568430
