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Modified adaptive scan pattern for quantized coefficients
- Authors
- Yoo, Kunho; Jung, Tae-Young; Lee, Hyuk; Jeong, Jechang
- Issue Date
- Mar-2011
- Publisher
- IEEE
- Keywords
- H.264; intra prediction; scan pattern
- Citation
- 2011 Digital Signal Processing and Signal Processing Education Meeting, DSP/SPE 2011 - Proceedings, pp.146 - 150
- Indexed
- SCOPUS
- Journal Title
- 2011 Digital Signal Processing and Signal Processing Education Meeting, DSP/SPE 2011 - Proceedings
- Start Page
- 146
- End Page
- 150
- ISSN
- 0000-0000
- Abstract
- Scan patterns for quantized coefficients that are intra predicted are needed to improve the efficiency of entropy coding. Therefore, various scanning algorithms have been proposed. In this paper, a modified adaptive scan pattern algorithm is proposed. A new scanning pattern can achieve an entropy coding gain in intra coding by updating the zero-counter and scan pattern at every macroblock. Experimental results show that the proposed algorithm can reduce the bit-rate about 2.23% as compared with H.264/AVC and 0.49% as compared with Yoo's algorithm[5].
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