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11. 发明申请

US20080130749A1 Method for Performing Pattern-Based Block Motion Estimation 审中-公开
标题翻译：执行基于模式的块运动估计的方法
公开(公告)号：US20080130749A1
公开(公告)日：2008-06-05
申请号：US11752452
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： H04N7/32
CPC分类号： H04N19/567 , H04N19/103 , H04N19/147 , H04N19/15 , H04N19/51 , H04N19/533 , H04N19/61
摘要： A block motion estimation search method and related search pattern for determining motion vectors of varying image data is 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：公开了一种用于确定变化图像数据的运动矢量的块运动估计搜索方法和相关搜索模式。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。

12. 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。

13. 发明授权

US5214507A Video signal quantization for an MPEG like coding environment 失效
标题翻译： MPEG视频编码环境的视频信号量化
公开(公告)号：US5214507A
公开(公告)日：1993-05-25
申请号：US790285
申请日：1991-11-08
申请人： Rangarajan Aravind , Hsueh-Ming Hang , Barin G. Haskell , Atul Puri
发明人： Rangarajan Aravind , Hsueh-Ming Hang , Barin G. Haskell , Atul Puri
IPC分类号： H03M7/50 , G06T9/00 , H04N7/26 , H04N7/30 , H04N7/32 , H04N7/50
CPC分类号： H04N19/80 , H04N19/112 , H04N19/126 , H04N19/154 , H04N19/17 , H04N19/176 , H04N19/192 , H04N19/60 , H04N19/61 , H04N19/146 , H04N19/152
摘要： A quantization parameter for use in encoding a region of an image is developed from a) a categorization of the region into one of a predetermined plurality of perceptual noise sensitivity (PNS) classes, b) a level of psycho-visual quality that can be achieved for the encoded version of the image, the level being selected from among a plurality of predetermined levels, and c) a prestored empirically derived model of the relationship between the PNS classes, the psycho-visual quality levels and the values of the quantization parameter. PNS indicates the amount of noise that would be tolerable to a viewer of the region, i.e., the perceptual sensitivity of the region to noise. Some characteristics on which PNS classes may be based are: spatial activity, speed of motion, brightness of the region, importance of the region in a particular context, the presence of edges within the region and the texture of the region, e.g., from "flat" to "highly textured". PNS classes that include combinations of the characteristics of a region of the image may also be defined. The PNS classes employed are selected by the implementor and may be determined empirically. The psycho-visual quality of an encoded image is the quality, as perceived by a viewer, of the version of the image that is reconstructed from the encoded image. It is determined from the complexity of the image and the bit-rate available to encode the image.

14. 发明申请

US20100080298A1 Refined Weighting Function and Momentum-Directed Genetic search pattern algorithm 审中-公开
标题翻译：精细加权函数和动量定向遗传搜索模式算法
公开(公告)号：US20100080298A1
公开(公告)日：2010-04-01
申请号：US12490337
申请日：2009-06-24
申请人： Hsueh-Ming Hang , Tzu-Yi Chao , Chang-Che Tsai
发明人： Hsueh-Ming Hang , Tzu-Yi Chao , Chang-Che Tsai
IPC分类号： H04N7/32
CPC分类号： H04N19/51 , H04N5/145
摘要： A weighting function (WF) is previously provided to model the number of search points of a pattern search. However, WF fails to properly describe the behavior of the genetic pattern search algorithms due to some over-simplifications in their models. Therefore, a refined weighting function (RWF) is provided to more accurately describe both genetic and non-genetic pattern searches. Moreover, based on the understanding to RWF, two momentum-directed genetic search algorithms are further provided. These new algorithms check the possible mutations according to their likelihood to the preceding successful mutations and further accelerate the previous genetic pattern searches.
摘要翻译：先前提供加权函数（WF）以对模式搜索的搜索点的数量进行建模。然而，由于WF模型的一些过度简化，WF无法正确描述遗传模式搜索算法的行为。因此，提供精确加权函数（RWF）以更准确地描述遗传和非遗传模式搜索。此外，基于对RWF的理解，进一步提供了两个动量导向的遗传搜索算法。这些新算法根据其可能性对前述成功的突变进行检查，进一步加速先前的遗传模式搜索。

15. 发明授权

US07203235B2 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：US07203235B2
公开(公告)日：2007-04-10
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： 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。

16. 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。

17. 发明授权

US5710595A Method and apparatus for controlling quantization and buffering for digital signal compression 失效
标题翻译：用于控制数字信号压缩的量化和缓冲的方法和装置
公开(公告)号：US5710595A
公开(公告)日：1998-01-20
申请号：US367375
申请日：1994-12-29
申请人： Hsueh-Ming Hang , Barin Geoffry Haskell , Shei-Zein Kiang
发明人： Hsueh-Ming Hang , Barin Geoffry Haskell , Shei-Zein Kiang
IPC分类号： G06T9/00 , H04N7/30 , H04N7/32 , H04N7/46
CPC分类号： H04N19/587 , H04N19/115 , H04N19/126 , H04N19/132 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/60 , H04N19/146 , H04N19/50
摘要： A method and apparatus for controlling quantization and buffering for video digital signal compression wherein a processor determines a bit budget value based on a number of frames to be skipped and a target buffer fullness. The bit budget value is used to retrieve a default Q-step value from a table of default quantization step size values and corresponding bit budget values. A default Q-step value is used to quantize the input digital signal only if it is less than a maximum. If, however, the default quantization step size value exceeds the maximum, then the number of frames to be skipped and the target buffer fullness may be increased to achieve a lower default quantization step size.
摘要翻译：一种用于控制用于视频数字信号压缩的量化和缓冲的方法和装置，其中处理器基于要跳过的帧的数量和目标缓冲区饱和度来确定比特预算值。比特预算值用于从默认量化步长值和相应比特预算值的表中检索默认的Q步值。只有当输入数字信号小于最大值时，才使用默认的Q-step值来量化输入数字信号。然而，如果默认量化步长值超过最大值，则可以增加要跳过的帧数和目标缓冲区饱和度以实现较低的默认量化步长。

18. 发明授权

US5038209A Adaptive buffer/quantizer control for transform video coders 失效
标题翻译：用于变换视频编码器的自适应缓冲器/量化器控制
公开(公告)号：US5038209A
公开(公告)日：1991-08-06
申请号：US589124
申请日：1990-09-27
申请人： Hsueh-Ming Hang
发明人： Hsueh-Ming Hang
IPC分类号： H04N1/41 , G06T9/00 , H04N7/26 , H04N7/30 , H04N7/32 , H04N7/50
CPC分类号： H04N19/198 , H04N19/115 , H04N19/124 , H04N19/162 , H04N19/172 , H04N19/196 , H04N19/60 , H04N19/61 , H04N19/13 , H04N19/146 , H04N19/152 , H04N19/50 , H04N19/91
摘要： A buffer/quantizer controller in a video coder utilizes the average quantization step size employed for the previous frame, the average number of bits produced per pel by the video coder for the image contained in the previous frame and current frame buffer fullness level to obtain an indication of image complexity. A target current frame quantization step size to be employed by the video coder in encoding a current frame is based on the indication of image complexity. Optionally, the target frame quantization step size is adjusted by a mapping procedure, at a predetermined intervals within each frame period, to account for the current buffer fullness. The map employed by the mapping procedure is adjusted in accordance with the target frame quantization step size.

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