DocumentCode :
239769
Title :
Novel CAVLC design for secondary SP-frame
Author :
Hongbin Zhang ; Chang-Hong Fu ; Weimin Su ; Yui-Lam Chan
Author_Institution :
Sch. of Electron. & Opt. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
fYear :
2014
fDate :
20-23 Aug. 2014
Firstpage :
223
Lastpage :
227
Abstract :
The quantized DCT coefficients of secondary SP-frame are different from conventional P-frame statistically. Therefore, the context-based adaptive variable length coder (CAVLC) designed in H.264 is not suitable for secondary SP-frame. A novel entropy coding approach based on CAVLC is designed for secondary SP-frame according to the special characteristic. The approach selects better VLC table for the level coding of nonzero coefficients by modeling the data fluctuation in each block. Moreover, tables of coding nonzero coefficients and trailingones are also redesigned. Simulation results show that the proposed approach can save 2.04% bits in average compared with H.264/AVC.
Keywords :
adaptive codes; discrete cosine transforms; variable length codes; video codecs; video coding; CAVLC design; H.264/AVC; VLC table; context-based adaptive variable length coder; data fluctuation; nonzero coefficients coding; quantized DCT coefficients; secondary SP-frame; trailingones; Digital signal processing; Encoding; Fluctuations; Image coding; Indexes; Streaming media; Switches; CAVLC; MVC; SP-frame; bitstream swithing; entropy coding; view access;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Digital Signal Processing (DSP), 2014 19th International Conference on
Conference_Location :
Hong Kong
Type :
conf
DOI :
10.1109/ICDSP.2014.6900833
Filename :
6900833
Link To Document :
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