Efficient reconstruction scheme for transform domain Wyner-Ziv video coding
To minimize the errors of the reconstructed values and improve the quality of decoded image, an efficient reconstruction scheme for transform domain Wyner-Ziv （WZ） video coding is proposed. The reconstruction scheme exploits temporal correlation of the coefficient bands, the WZ decoded bits stream a...
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| Veröffentlicht in: | Journal of China universities of posts and telecommunications 2010-08, Vol.17 (4), p.52-57 |
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| container_issue | 4 |
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| container_title | Journal of China universities of posts and telecommunications |
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| creator | WANG, Feng-qin FAN, Yang-yu JIA, Meng CHEN, Yan |
| description | To minimize the errors of the reconstructed values and improve the quality of decoded image, an efficient reconstruction scheme for transform domain Wyner-Ziv （WZ） video coding is proposed. The reconstruction scheme exploits temporal correlation of the coefficient bands, the WZ decoded bits stream and the side information efficiently. When side information is outside the decoded quantization bin, the reconstructed value is derived using expectation of the WZ decoded bit stream and the side information. When side information is within the decoded quantization bin, the reconstructed value is derived using the biased predictor. Simulation results show that the proposed reconstruction scheme gains up to 1.32 dB compared with the commonly used boundary reconstruction scheme at the same bit rates and similar computation cost. |
| doi_str_mv | 10.1016/S1005-8885(09)60487-8 |
| format | Article |
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The reconstruction scheme exploits temporal correlation of the coefficient bands, the WZ decoded bits stream and the side information efficiently. When side information is outside the decoded quantization bin, the reconstructed value is derived using expectation of the WZ decoded bit stream and the side information. When side information is within the decoded quantization bin, the reconstructed value is derived using the biased predictor. 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| language | eng |
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| source | Alma/SFX Local Collection |
| subjects | Coding Computer simulation distributed video coding Noise levels Quantization Reconstruction Streams transform domain Transforms WZ video coding 信息量化 变换域 图像质量 改造方案 时间相关 编码效率 视频编码 边信息 |
| title | Efficient reconstruction scheme for transform domain Wyner-Ziv video coding |
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