An Adaptive Scan of High Frequency Subbands of Dyadic Intra Frame in MPEG4-AVC/H.264 Scalable Video Coding

Zafar Shahid 1 Marc Chaumont 1 William Puech 1
1 ICAR - Image & Interaction
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : This paper develops a new adaptive scanning methodology for intra frame scalable coding framework based on a subband/wavelet(DWTSB) coding approach for MPEG-4 AVC/H.264 scalable video coding (SVC). It attempts to take advantage of the prior knowledge of the frequencies which are present in different higher frequency subbands. We propose dyadic intra frame coding method with adaptive scan (DWTSB-AS) for each subband as traditional zigzag scan is not suitable for high frequency subbands. Thus, by just modification of the scan order of the intra frame scalable coding framework of H.264, we can get better compression. The proposed algorithm has been theoretically justified and is thoroughly evaluated against the current SVC test model JSVM and DWTSB through extensive coding experiments for scalable coding of intra frame. The simulation results show the proposed scanning algorithm consistently outperforms JSVM and DWTSB in PSNR performance. This results in extra compression for intra frames, along with spatial scalability. Thus Image and video coding applications, traditionally serviced by separate coders, can be efficiently provided by an integrated coding system.
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Communication dans un congrès
Electronic Imaging, Jan 2009, San Jose, CA, United States. SPIE/IS&T, SPIE (7257), pp.72570U, 2009, Visual Communications and Image Processing. 〈10.1117/12.806394〉
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Zafar Shahid, Marc Chaumont, William Puech. An Adaptive Scan of High Frequency Subbands of Dyadic Intra Frame in MPEG4-AVC/H.264 Scalable Video Coding. Electronic Imaging, Jan 2009, San Jose, CA, United States. SPIE/IS&T, SPIE (7257), pp.72570U, 2009, Visual Communications and Image Processing. 〈10.1117/12.806394〉. 〈lirmm-00415995〉

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