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1. 发明授权

US07072394B2 Architecture and method for fine granularity scalable video coding 有权
标题翻译：精细粒度可扩展视频编码的架构和方法
公开(公告)号：US07072394B2
公开(公告)日：2006-07-04
申请号：US10229580
申请日：2002-08-27
申请人： Hsiang-Chun Huang , Chung-Neng Wang , Tihao Chiang , Hsueh-Ming Hang
发明人： Hsiang-Chun Huang , Chung-Neng Wang , Tihao Chiang , Hsueh-Ming Hang
IPC分类号： H04B1/66
CPC分类号： H04N19/34 , H04N19/33
摘要： A robust fine granularity scalability video encoding includes a base layer encoder and an enhancement layer encoder in which motion compensated difference images are generated by comparing an original image to predicted images at base layer and enhancement layer with motion compensation. Based on leaky and partial predictions, a high quality reference image is constructed at the enhancement layer to improve temporal prediction. In the construction of the high quality reference image, one parameter β controls the number of bitplanes of the enhancement layer difference coefficients used and another parameter α controls the amount of predictive leak. A spatial scalability module allows the processed pictures at the base layer and the enhancement layer to have identical or different spatial resolutions.
摘要翻译：强大的细粒度可伸缩性视频编码包括基本层编码器和增强层编码器，其中通过将原始图像与基本层和具有运动补偿的增强层的预测图像进行比较来生成运动补偿差分图像。基于泄漏和部分预测，在增强层构建高质量参考图像以改善时间预测。在构建高质量参考图像时，一个参数β控制所使用的增强层差分系数的位平面数，另一参数α控制预测泄漏量。空间可扩展性模块允许基础层和增强层处理的图像具有相同或不同的空间分辨率。

2. 发明申请

US20050195896A1 Architecture for stack robust fine granularity scalability 审中-公开
标题翻译：堆栈的架构稳健的细粒度可扩展性
公开(公告)号：US20050195896A1
公开(公告)日：2005-09-08
申请号：US10793830
申请日：2004-03-08
申请人： Hsiang-Chun Huang , Chung-Neng Wang , Tihao Chiang , Hsuch-Ming Hang
发明人： Hsiang-Chun Huang , Chung-Neng Wang , Tihao Chiang , Hsuch-Ming Hang
IPC分类号： H04N7/12
CPC分类号： H04N19/36 , H04N19/34 , H04N19/61
摘要： The present invention relates to an architecture for stack robust fine granularity scalability (SRFGS), more particularly, SRFGS providing simultaneously temporal scalability and SNR scalability. SRFGS first simplifies the RFGS temporal prediction architecture and then generalizes the prediction concept as the following: the quantization error of the previous layer can be inter-predicted by the reconstructed image in the previous time instance of the same layer. With this concept, the RFGS architecture can be extended to multiple layers that forming a stack to improve the temporal prediction efficiency. SRFGS can be optimized at several operating points to fit the requirements of various applications while the fine granularity and error robustness of RFGS are still remained. The experiment results show that SRFGS can improve the performance of RFGS by 0.4 to 3.0 dB in PSNR.
摘要翻译：本发明涉及用于堆栈鲁棒的精细粒度可伸缩性（SRFGS）的架构，更具体地说，涉及提供同时时间可扩展性和SNR可伸缩性的SRFGS。 SRFGS首先简化RFGS时间预测架构，然后将预测概念概括如下：先前层的量化误差可以由同一层的先前时间实例中的重建图像进行预测。利用这个概念，RFGS架构可以扩展到形成堆栈的多个层，以提高时间预测效率。 SRFGS可以在几个操作点进行优化，以适应各种应用的要求，同时仍保持RFGS的细粒度和误差鲁棒性。实验结果表明，SRFGS可以在PSNR中将RFGS的性能提高0.4〜3.0dB。

3. 发明申请

US20050201468A1 Method and apparatus for interframe wavelet video coding 审中-公开
标题翻译：帧间小波视频编码的方法和装置
公开(公告)号：US20050201468A1
公开(公告)日：2005-09-15
申请号：US10796977
申请日：2004-03-11
申请人： Sam Tsai , Hsueh-Ming Hang , Chia-Yang Tsai , Tihao Chiang
发明人： Sam Tsai , Hsueh-Ming Hang , Chia-Yang Tsai , Tihao Chiang
IPC分类号： H04N7/12
CPC分类号： H04N19/615 , H04N19/13 , H04N19/61 , H04N19/63
摘要： The present invention provides a method and apparatus for interframe wavelet video coding which comprises Motion Compensated Temporal Filtering and Discrete Wavelet Transform Coding to obtain: 1. compressed quantification error and scalability on temporal analysis and spatial analysis, and 2. scalability on Motion Information (MI) data so that the performance of wavelet video coding on low bitrate can be improved. A method for partitioned coding on MI is proposed: 1. to partitioned coding a motion vector according to the spatial block, the temporal frame, or the numeric precision; 2. to partition motion vectors to a plurality of layers, and, when the video bitstream changes, only the required MI is put into the final bitstream. Accordingly, the performance of wavelet video compression on low bitrate is greatly improved while the compression rate on high bitrate is only a little lower.
摘要翻译：本发明提供了一种帧间小波视频编码的方法和装置，其包括运动补偿时间滤波和离散小波变换编码，以获得：1.时间分析和空间分析上的压缩量化误差和可扩展性，以及2.运动信息（MI）的可扩展性）数据，从而可以提高低比特率下的小波视频编码性能。提出了一种用于MI分区编码的方法：1.根据空间块，时间帧或数值精度对运动矢量进行分区编码; 2.将运动矢量分割成多个层，并且当视频比特流改变时，仅将所需的MI放入最终比特流中。因此，在低比特率下的小波视频压缩的性能大大提高，而高比特率的压缩率仅略低一点。

4. 发明申请

US20070071090A1 Method for performing context adaptive binary arithmetic coding with stochastic bit reshuffling for fine granularity scalability 审中-公开
标题翻译：用于进行具有随机位重排的精细粒度可伸缩性的上下文自适应二进制算术编码的方法
公开(公告)号：US20070071090A1
公开(公告)日：2007-03-29
申请号：US11158034
申请日：2005-06-21
申请人： Wen-Hsiao Peng , Tihao Chiang , Hsueh-Ming Hang
发明人： Wen-Hsiao Peng , Tihao Chiang , Hsueh-Ming Hang
IPC分类号： H04N11/04
CPC分类号： H04N19/34 , H04N19/129 , H04N19/13 , H04N19/147 , H04N19/184
摘要： The disclosure relates to a method for performing context based binary arithmetic coding with a stochastic bit-reshuffling scheme in order to improve MPEG-4 fine granularity scalability (FGS) based bit-plane coding. The method comprises steps of: replacing 8×8 DCT with 4×4 integer transform coefficient in MPEG-4 AVC (Advance Video-Coding); partitioning each transform coefficient into significant bit and refinement bit; setting up significant bit context based on energy distribution within a transform block and spatial correlation in adjacent blocks; using an estimated Laplacian distribution to derive coding probability for the refinement bit; and using the context across bit-planes to partition each significant bit-plane for saving side information bit.
摘要翻译：本公开涉及一种用于利用随机比特重排方案执行基于上下文的二进制算术编码以便改进基于MPEG-4精细粒度可伸缩性（FGS）的比特平面编码的方法。该方法包括以下步骤：在MPEG-4 AVC（Advance Video-Coding）中用4×4整数变换系数代替8×8 DCT; 将每个变换系数分解为有效位和细化位; 基于变换块内的能量分布和相邻块中的空间相关性设置有效位上下文; 使用估计的拉普拉斯算子分解来导出细化位的编码概率; 并且使用位平面上的上下文划分每个有效位平面以保存侧信息位。

5. 发明授权

US07020201B2 Method and apparatus for motion estimation with all binary representation 失效
标题翻译：具有所有二进制表示的运动估计的方法和装置
公开(公告)号：US07020201B2
公开(公告)日：2006-03-28
申请号：US10301415
申请日：2002-11-20
申请人： Jeng-Hung Luo , Gen-Ming Lee , Chung-Neng Wang , Tihao Chiang
发明人： Jeng-Hung Luo , Gen-Ming Lee , Chung-Neng Wang , Tihao Chiang
IPC分类号： H04B1/66 , H04N7/12
CPC分类号： H04N5/145 , H04N19/53
摘要： A method of motion estimation for video encoding constructs a binary pyramid structure having three binary layers. A state update module registers and updates repeat occurrence of final motion vectors and a static-state checking module determines if the method is in a static mode or a normal mode based on the repeat occurrence. In a normal mode, the first binary layer is searched within a ±3 pixel refinement window to determine a first level motion vector. In the second binary layer, a search range is computed based on six motion vector candidates. By checking every point within in the search range, a second binary layer search generates a second level motion vector. Finally, a third binary layer search within a ±2 pixel refinement window generates a final motion vector according to the second level motion vector. In a static mode, a fine tuning module performs search within a ±1 pixel refinement window and generates a final motion vector.
摘要翻译：视频编码的运动估计方法构成具有三个二进制层的二进制金字塔结构。状态更新模块注册和更新最终运动矢量的重复发生，并且静态状态检查模块基于重复发生来确定该方法是处于静态模式还是正常模式。在正常模式中，在±3像素细化窗口内搜索第一二进制层以确定第一级运动矢量。在第二二进制层中，基于六个运动矢量候选来计算搜索范围。通过检查搜索范围内的每个点，第二二进制层搜索生成第二级运动矢量。最后，±2像素细化窗口内的第三二进制层搜索根据第二级运动矢量生成最终运动矢量。在静态模式中，微调模块在±1像素细化窗口内进行搜索，并生成最终的运动矢量。

6. 发明申请

US20060104366A1 MPEG-4 streaming system with adaptive error concealment 有权
标题翻译：具有自适应错误隐藏的MPEG-4流媒体系统
公开(公告)号：US20060104366A1
公开(公告)日：2006-05-18
申请号：US10990818
申请日：2004-11-16
申请人： Ming-Yen Huang , Tzu-Liang Su , Shih-Hao Wang , Chung-Neng Wang , Tihao Chiang
发明人： Ming-Yen Huang , Tzu-Liang Su , Shih-Hao Wang , Chung-Neng Wang , Tihao Chiang
IPC分类号： H04B1/66 , H04N11/04 , H04N11/02 , H04N7/12
CPC分类号： H04N19/895 , H04N19/11 , H04N19/147 , H04N19/166
摘要： An MPEG-4 system with error concealment is provided for video service under the network with packet loss. The MPEG-4 system includes an encoder and a decoder. The encoder uses an intra-refreshment technique is used to make coded bitstream more robust against noise in order to stop error propagation. The rate-distortion optimization criterion is also introduced to adaptively update in synchronization with intra-coded blocks adaptively based on the true network condition with minimal overhead. The Lagrange multiplier is modified to achieve the best rate-distortion balance. In addition, a decoder loop is used in the encoder and is synchronized with the true decoder to achieve the best performance and avoid mismatch with the decoder used in the MPEG-4 system. The decoder is able to achieve resilient decoding from any kind of noise and enhance the reconstructed image quality with spatial and temporal hybrid concealment method. The result shows that a 3.65-9.71 dB further improvement on peak-signal-to-noise-ratio (PSNR) can be achieved in comparison with the existing methods that adopt spatial copy and zero motion concealment in decoding.
摘要翻译：为具有丢包的网络下的视频服务提供了具有错误隐藏的MPEG-4系统。 MPEG-4系统包括编码器和解码器。编码器使用内部刷新技术来使编码比特流更加鲁棒地抵抗噪声，以便停止错误传播。还引入了速率失真优化标准，以最小的开销，基于真实的网络条件自适应地自适应地更新与帧内编码块的内部编码块。修改拉格朗日乘数以获得最佳的速率 - 失真平衡。另外，在编码器中使用解码器环路，并且与真实解码器同步以实现最佳性能并避免与MPEG-4系统中使用的解码器不匹配。解码器能够通过任何种类的噪声实现弹性解码，并通过空间和时间混合隐藏方法增强重建的图像质量。结果表明，与采用空间复制和零运动隐藏解码的现有方法相比，可以实现峰值信噪比（PSNR）的3.65-9.71dB进一步改善。

7. 发明申请

US20090086819A1 MPEG-4 Streaming System With Adaptive Error Concealment 审中-公开
标题翻译：具有自适应误差隐藏的MPEG-4流系统
公开(公告)号：US20090086819A1
公开(公告)日：2009-04-02
申请号：US12326104
申请日：2008-12-02
申请人： Ming-Yen Huang , Tzu-Liang Su , Shih-Hao Wang , Chung-Neng Wang , Tihao Chiang
发明人： Ming-Yen Huang , Tzu-Liang Su , Shih-Hao Wang , Chung-Neng Wang , Tihao Chiang
IPC分类号： H04N7/32
CPC分类号： H04N19/895 , H04N19/11 , H04N19/147 , H04N19/166
摘要： An MPEG-4 system with error concealment is provided for video service under the network with packet loss. The MPEG-4 system includes an encoder and a decoder. The encoder uses an intra-refreshment technique is used to make coded bitstream more robust against noise in order to stop error propagation. The rate-distortion optimization criterion is also introduced to adaptively update in synchronization with intra-coded blocks adaptively based on the true network condition with minimal overhead. The Lagrange multiplier is modified to achieve the best rate-distortion balance. In addition, a decoder loop is used in the encoder and is synchronized with the true decoder to achieve the best performance and avoid mismatch with the decoder used in the MPEG-4 system. The decoder is able to achieve resilient decoding from any kind of noise and enhance the reconstructed image quality with spatial and temporal hybrid concealment method. The result shows that a 3.65-9.71 dB further improvement on peak-signal-to-noise-ratio (PSNR) can be achieved in comparison with the existing methods that adopt spatial copy and zero motion concealment in decoding.
摘要翻译：为具有丢包的网络下的视频服务提供了具有错误隐藏的MPEG-4系统。 MPEG-4系统包括编码器和解码器。编码器使用内部刷新技术来使编码比特流更加鲁棒地抵抗噪声，以便阻止错误传播。还引入了速率失真优化标准，以最小的开销，基于真实的网络条件自适应地自适应地更新与帧内编码块的内部编码块。修改拉格朗日乘数以获得最佳的速率 - 失真平衡。另外，在编码器中使用解码器环路，并且与真实解码器同步以实现最佳性能并避免与MPEG-4系统中使用的解码器不匹配。解码器能够通过任何种类的噪声实现弹性解码，并通过空间和时间混合隐藏方法增强重建的图像质量。结果表明，与采用空间复制和零运动隐藏解码的现有方法相比，可以实现峰值信噪比（PSNR）的3.65-9.71dB进一步改善。

8. 发明授权

US07027511B2 Fast motion estimation using N-queen pixel decimation 失效
公开(公告)号：US07027511B2
公开(公告)日：2006-04-11
申请号：US10118370
申请日：2002-04-09
申请人： Chung-Neng Wang , Shin-Wei Yang , Chi-Min Liu , Tihao Chiang
发明人： Chung-Neng Wang , Shin-Wei Yang , Chi-Min Liu , Tihao Chiang
IPC分类号： H04B1/66
CPC分类号： H04N5/145 , H04N19/53
摘要： The present invention proposes a fast motion estimation using N-queen pixel decimation, whereby after a reference block and a block to be processed are selected in a video sequence, an N×N queens pattern is used for pixel decimation to perform block match, thereby obtaining a good enough block difference value. The present invention combines pixel decimation with fast motion estimation for search points reduction to achieve the object of simplifying computational complexity of motion estimation. Therefore, the present invention can sieve out sufficiently representative pixels and will not increase extra computational complexity.

9. 发明授权

US07738561B2 MPEG-4 streaming system with adaptive error concealment 有权
标题翻译：具有自适应错误隐藏的MPEG-4流媒体系统
公开(公告)号：US07738561B2
公开(公告)日：2010-06-15
申请号：US10990818
申请日：2004-11-16
申请人： Ming-Yen Huang , Tzu-Liang Su , Shih-Hao Wang , Chung-Neng Wang , Tihao Chiang
发明人： Ming-Yen Huang , Tzu-Liang Su , Shih-Hao Wang , Chung-Neng Wang , Tihao Chiang
IPC分类号： H04N7/12
CPC分类号： H04N19/895 , H04N19/11 , H04N19/147 , H04N19/166
摘要： An MPEG-4 system with error concealment is provided for video service under the network with packet loss. The MPEG-4 system includes an encoder and a decoder. The encoder uses an intra-refreshment technique is used to make coded bitstream more robust against noise in order to stop error propagation. The rate-distortion optimization criterion is also introduced to adaptively update in synchronization with intra-coded blocks adaptively based on the true network condition with minimal overhead. The Lagrange multiplier is modified to achieve the best rate-distortion balance. In addition, a decoder loop is used in the encoder and is synchronized with the true decoder to achieve the best performance and avoid mismatch with the decoder used in the MPEG-4 system. The decoder is able to achieve resilient decoding from any kind of noise and enhance the reconstructed image quality with spatial and temporal hybrid concealment method. The result shows that a 3.65-9.71 dB further improvement on peak-signal-to-noise-ratio (PSNR) can be achieved in comparison with the existing methods that adopt spatial copy and zero motion concealment in decoding.
摘要翻译：为具有丢包的网络下的视频服务提供了具有错误隐藏的MPEG-4系统。 MPEG-4系统包括编码器和解码器。编码器使用内部刷新技术来使编码比特流更加鲁棒地抵抗噪声，以便阻止错误传播。还引入了速率失真优化标准，以最小的开销，基于真实的网络条件自适应地自适应地更新与帧内编码块的内部编码块。修改拉格朗日乘数以获得最佳的速率 - 失真平衡。另外，在编码器中使用解码器环路，并且与真实解码器同步以实现最佳性能并避免与MPEG-4系统中使用的解码器不匹配。解码器能够通过任何种类的噪声实现弹性解码，并通过空间和时间混合隐藏方法增强重建的图像质量。结果表明，与采用空间复制和零运动隐藏解码的现有方法相比，可以实现峰值信噪比（PSNR）的3.65-9.71dB进一步改善。

10. 发明申请

US20090086828A1 MPEG-4 Streaming System With Adaptive Error Concealment 有权
公开(公告)号：US20090086828A1
公开(公告)日：2009-04-02
申请号：US12326105
申请日：2008-12-02
申请人： Ming-Yen Huang , Tzu-Liang Su , Shih-Hao Wang , Chung-Neng Wang , Tihao Chiang
发明人： Ming-Yen Huang , Tzu-Liang Su , Shih-Hao Wang , Chung-Neng Wang , Tihao Chiang
IPC分类号： H04N7/26
CPC分类号： H04N19/895 , H04N19/11 , H04N19/147 , H04N19/166
摘要： An MPEG-4 system with error concealment is provided for video service under the network with packet loss. The MPEG-4 system includes an encoder and a decoder. The encoder uses an intra-refreshment technique is used to make coded bitstream more robust against noise in order to stop error propagation. The rate-distortion optimization criterion is also introduced to adaptively update in synchronization with intra-coded blocks adaptively based on the true network condition with minimal overhead. The Lagrange multiplier is modified to achieve the best rate-distortion balance. In addition, a decoder loop is used in the encoder and is synchronized with the true decoder to achieve the best performance and avoid mismatch with the decoder used in the MPEG-4 system. The decoder is able to achieve resilient decoding from any kind of noise and enhance the reconstructed image quality with spatial and temporal hybrid concealment method. The result shows that a 3.65-9.71 dB further improvement on peak-signal-to-noise-ratio (PSNR) can be achieved in comparison with the existing methods that adopt spatial copy and zero motion concealment in decoding.

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