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1. 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。

2. 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。

3. 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。

4. 发明授权

US06480664B1 Trick mode VTR which generates trick play data from a stream of images containing intra-pictures and predictive pictures and selects specific DCT coefficients for intra-pictures 失效
标题翻译：伎俩模式VTR，其从包含画⾯图像和预测图像的图像流中产生特技播放数据，并选择用于画内图像的特定DCT系数
公开(公告)号：US06480664B1
公开(公告)日：2002-11-12
申请号：US08977020
申请日：1997-11-24
申请人： Hou-Chun Ting , Hsueh-Ming Hang , Jang-Zern Tsai , Chien-Chen Liang
发明人： Hou-Chun Ting , Hsueh-Ming Hang , Jang-Zern Tsai , Chien-Chen Liang
IPC分类号： H04N979
CPC分类号： G11B15/1875 , G11B15/4672 , G11B15/4678 , G11B27/005 , G11B2220/90 , H04N5/78263 , H04N5/783 , H04N9/8042 , H04N9/8227 , H04N19/115 , H04N19/137 , H04N19/152 , H04N19/159 , H04N19/172 , H04N19/18 , H04N19/30 , H04N19/42 , H04N19/48 , H04N19/60 , H04N19/61 , H04N19/70 , H04N19/90
摘要： Tape formatting, tracking and trick mode data generation are disclosed for providing trick modes for compressed video stored on a video tape. The tape is formatted so that trick mode data is recorded at normal speed within certain areas delineated by predetermined boundaries that are within a maintainable range of a predetermined ideal scan path of the heads. These boundaries are oblique to the normal speed tracks and define trick mode data areas in which trick mode data may be recorded. To facilitate tracking, sync words and trick mode identification codes are interleaved within the trick mode data areas. During tracking, the heads reproduce the sync words and identification codes, and the identification codes that match the currently utilized trick mode are counted. The count during a current interval is compared to a count during a previous interval or a threshold to determine if the heads have locked onto the ideal scan path or deviated therefrom. Trick mode data is generated by replicating a limited portion of the compressed video data of selected pictures, which trick mode data can be independently reproduced, decoded and presented during trick mode playback.
摘要翻译：公开了磁带格式化，跟踪和特技模式数据生成，以提供存储在录像带上的压缩视频的特技模式。磁带被格式化，使得特技模式数据以正常速度记录在由磁头的预定理想扫描路径的可维持范围内的预定边界描绘的某些区域内。这些边界对于正常速度轨道是倾斜的，并且定义可以记录特技模式数据的特技模式数据区域。为了便于跟踪，同步字和特技模式识别码在特技模式数据区内交错。在跟踪期间，磁头再现同步字和识别码，并且对与当前使用的特技模式匹配的识别码进行计数。将当前间隔期间的计数与先前间隔或阈值期间的计数进行比较，以确定磁头是否锁定在理想扫描路径上或与其偏离。通过复制所选图像的压缩视频数据的有限部分来生成拼图模式数据，该特技模式数据可以在特技模式播放期间独立地再现，解码和呈现。

5. 发明授权

US5115309A Method and apparatus for dynamic channel bandwidth allocation among multiple parallel video coders 失效
标题翻译：用于多个并行视频编码器的动态通道带宽分配的方法和装置
公开(公告)号：US5115309A
公开(公告)日：1992-05-19
申请号：US580412
申请日：1990-09-10
申请人： Hsueh-Ming Hang
发明人： Hsueh-Ming Hang
IPC分类号： H04N7/015 , G06T1/20 , G06T9/00 , H04N7/26
CPC分类号： H04N19/61 , H04N19/63 , H04N19/115 , H04N19/146 , H04N19/30
摘要： A dynamic channel allocation unit for specifying a bit rate for each video coder in a set of parallel video coders comprising an overall video coder is disclosed. The dynamic channel allocation unit is supplied from each individual video coder with an average from quantization step size for the previous frame and the average number of bits produced per pel. For the current image frame the dynamic channel allocation unit computes a set of channel sharing factors, i.e., the percentage of the total channel bandwidth to be allocated to a particular video coder. One channel sharing factor is computed for each individual video coder. Individual members of the set of channel sharing factors may be further refined to reflect the prior history of the channel sharing factor for their corresponding coder. Additionally, the set of estimates may be normalized to reflect the actual number of bits that can actually be produced by each individual video coder.

6. 发明授权

US07328152B2 Fast bit allocation method for audio coding 有权
标题翻译：用于音频编码的快速位分配方法
公开(公告)号：US07328152B2
公开(公告)日：2008-02-05
申请号：US10879615
申请日：2004-06-28
申请人： Cheng-Han Yang , Hsueh-Ming Hang
发明人： Cheng-Han Yang , Hsueh-Ming Hang
IPC分类号： G10L19/02
CPC分类号： G10L19/032 , G10L19/0017
摘要： A fast bit allocation algorithm for audio coding is disclosed. A virtual Huffman codebook model is referred in a trellis-based optimization approach to obtain a set of optimized scale factors, and then the set of optimized scale factors is referred in a trellis-based optimization approach to obtain a set of optimized Huffman codebooks. Therefore, the present invention can significantly reduce the amount of computation for the bit allocation. Further, according to the experimental data, the present invention can keep almost the same compression efficiency as the prior art JTB optimization. Hence, the present invention is more suitable for practical applications.
摘要翻译：公开了用于音频编码的快速位分配算法。虚拟霍夫曼码本模型在基于网格的优化方法中被引用以获得一组优化的比例因子，然后在基于网格的优化方法中参考优化比例因子的集合以获得一组优化的霍夫曼码本。因此，本发明可以显着地减少比特分配的计算量。此外，根据实验数据，本发明可以保持与现有技术的JTB优化几乎相同的压缩效率。因此，本发明更适用于实际应用。

7. 发明申请

US20050228658A1 Fast bit allocation method for audio coding 有权
标题翻译：用于音频编码的快速位分配方法
公开(公告)号：US20050228658A1
公开(公告)日：2005-10-13
申请号：US10879615
申请日：2004-06-28
申请人： Cheng-Han Yang , Hsueh-Ming Hang
发明人： Cheng-Han Yang , Hsueh-Ming Hang
IPC分类号： G10L19/00 , G10L19/02 , G10L19/08 , H03M7/30
CPC分类号： G10L19/032 , G10L19/0017
摘要： A fast bit allocation algorithm for audio coding is disclosed. A virtual Huffman codebook model is referred in a trellis-based optimization approach to obtain a set of optimized scale factors, and then the set of optimized scale factors is referred in a trellis-based optimization approach to obtain a set of optimized Huffman codebooks. Therefore, the present invention can significantly reduce the amount of computation for the bit allocation. Further, according to the experimental data, the present invention can keep almost the same compression efficiency as the prior art JTB optimization. Hence, the present invention is more suitable for practical applications.
摘要翻译：公开了用于音频编码的快速位分配算法。虚拟霍夫曼码本模型在基于网格的优化方法中被引用以获得一组优化的比例因子，然后在基于网格的优化方法中参考优化比例因子的集合以获得一组优化的霍夫曼码本。因此，本发明可以显着地减少比特分配的计算量。此外，根据实验数据，本发明可以保持与现有技术的JTB优化几乎相同的压缩效率。因此，本发明更适用于实际应用。

8. 发明申请

US20050220192A1 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：US20050220192A1
公开(公告)日：2005-10-06
申请号：US11136780
申请日：2005-05-25
申请人： Hsiang-Chun Huang , Chung-Neng Wang , Ti-Hao Chiang , Hsueh-Ming Hang
发明人： Hsiang-Chun Huang , Chung-Neng Wang , Ti-Hao Chiang , Hsueh-Ming Hang
IPC分类号： H04N7/12 , H04N7/26 , H04N7/32
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。

9. 发明申请

US20070274390A1 System for Performing Pattern-Based Block Motion Estimation 审中-公开
标题翻译：用于执行基于模式的块运动估计的系统
公开(公告)号：US20070274390A1
公开(公告)日：2007-11-29
申请号：US11752462
申请日：2007-05-23
申请人： Chang-Che Tsai , Tzu-Yi Chao , Hsueh-Ming Hang
发明人： Chang-Che Tsai , Tzu-Yi Chao , Hsueh-Ming Hang
IPC分类号： H04N11/02 , H04N11/04
CPC分类号： H04N19/533 , H04N19/51 , H04N19/56
摘要： A circuit which performs a block motion estimation procedure disclosed. The patterns are based on genetic competition between paired coordinate points. An evaluation of a block matching cost is used to identify a survivor between the two selected points. Models are also provided for estimating performances of new search algorithms and image sequences.
摘要翻译：执行块运动估计程序的电路。模式是基于配对坐标点之间的遗传竞争。使用块匹配成本的评估来识别两个选择点之间的幸存者。还提供了用于估计新的搜索算法和图像序列的性能的模型。

10. 发明授权

US5647048A Trick mode VTR tracking for compressed video 失效
标题翻译：压缩视频的技巧模式VTR跟踪
公开(公告)号：US5647048A
公开(公告)日：1997-07-08
申请号：US485207
申请日：1995-06-07
申请人： Hou-Chun Ting , Hsueh-Ming Hang , Jang-Zern Tsai , Chien-Chen Liang
发明人： Hou-Chun Ting , Hsueh-Ming Hang , Jang-Zern Tsai , Chien-Chen Liang
IPC分类号： G11B15/087 , G11B15/18 , G11B15/467 , G11B27/00 , H04N5/7826 , H04N5/783 , H04N9/804 , H04N9/82 , H04N5/91 , G11B21/02 , G11B21/04
CPC分类号： H04N5/783 , G11B15/087 , G11B15/1875 , G11B15/4678 , G11B27/005 , G11B2220/90 , H04N5/78263 , H04N9/8042 , H04N9/8227
摘要： Tape formatting, tracking and trick mode data generation provide trick modes for compressed video stored on a video tape. The tape is formatted so that trick mode data is recorded at normal speed within certain areas delineated by predetermined boundaries that are within a maintainable range of a predetermined ideal scan path of the heads. These boundaries are oblique to the normal speed tracks and define trick mode data areas in which trick mode data may be recorded. To facilitate tracking, sync words and trick mode identification codes are interleaved within the trick mode data areas. During tracking, the heads reproduce the sync words and identification codes, and the identification codes that match the currently utilized trick mode are counted. The count during a current interval is compared to a count during a previous interval or a threshold to determine if the heads have locked onto the ideal can path or deviated therefrom. Trick mode data is generated by replicating a limited portion of the compressed video data of selected pictures, which trick mode data can be independently reproduced, decoded and presented during trick mode playback.
摘要翻译：磁带格式化，跟踪和特技模式数据生成为存储在录像带上的压缩视频提供特技模式。磁带被格式化，使得特技模式数据以正常速度记录在由磁头的预定理想扫描路径的可维持范围内的预定边界描绘的某些区域内。这些边界对于正常速度轨道是倾斜的，并且定义可以记录特技模式数据的特技模式数据区域。为了便于跟踪，同步字和特技模式识别码在特技模式数据区内交错。在跟踪期间，磁头再现同步字和识别码，并且对与当前使用的特技模式匹配的识别码进行计数。将当前间隔期间的计数与先前间隔或阈值期间的计数进行比较，以确定磁头是否锁定在理想的容纳路径上或与之偏离。通过复制所选图像的压缩视频数据的有限部分来产生拼图模式数据，该特技模式数据可以在特技模式回放期间独立地再现，解码和呈现。

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