Adaptive Scan Pattern for Quantized Coefficients in Intra Coding of H.264
Various scanning algorithms have been proposed to enhance the performance of intra prediction of H.264 codec. In this paper, an adaptive scanning scheme is proposed to achieve the entropy coding gain in intra coding, where scanning patterns are updated based on the probabilistic distribution of quan...
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| Veröffentlicht in: | IEICE Transactions on Information and Systems 2009/04/01, Vol.E92.D(4), pp.750-752 |
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| creator | YOO, Young-Joe JEONG, Seyoon HAN, Jong-Ki |
| description | Various scanning algorithms have been proposed to enhance the performance of intra prediction of H.264 codec. In this paper, an adaptive scanning scheme is proposed to achieve the entropy coding gain in intra coding, where scanning patterns are updated based on the probabilistic distribution of quantized coefficients of previous macroblocks so that the consecutive zeros are located at the rear part of the scanned data stream. Simulation results show that the average bit-rate reduction is about 2.15% in common test conditions. |
| doi_str_mv | 10.1587/transinf.E92.D.750 |
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| subjects | Algorithms Applied sciences Circuit properties Codec Coding Coding, codes Computer simulation Electric, optical and optoelectronic circuits Electronic circuits Electronics Entropy Exact sciences and technology Gain H.264 Image processing Information, signal and communications theory intra prediction Scanning Signal and communications theory Signal convertors Signal processing Streams Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Teletraffic |
| title | Adaptive Scan Pattern for Quantized Coefficients in Intra Coding of H.264 |
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