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11. 发明申请

US20120250988A1 ADAPTIVE CONTRAST ADJUSTMENT TECHNIQUES 有权
标题翻译：自适应对比度调整技术
公开(公告)号：US20120250988A1
公开(公告)日：2012-10-04
申请号：US13074257
申请日：2011-03-29
申请人： Ya-Ti Peng , Yi-Jen Chiu
发明人： Ya-Ti Peng , Yi-Jen Chiu
IPC分类号： G06K9/00
CPC分类号： G06T5/40 , G06K9/38 , G06T2207/10016 , G06T2207/10024
摘要： Techniques are disclosed involving contrast adjustment for images. For example, an input image is classified based on its pixel value characteristics, as expressed in an input brightness histogram. From such a classification, a target histogram distribution for a corresponding output image (i.e., a contrast-adjusted transformation of the input image) may be specified. With the target histogram of the output image specified, a transformation function may be derived that maps input image values to output image values. Moreover, transitions of such transformation functions may be smoothed. Such smoothing may provide advantages, such as a reduction in flickering associated with video data.
摘要翻译：公开了涉及图像的对比度调整的技术。例如，输入图像根据输入亮度直方图所表示的像素值特性进行分类。根据这样的分类，可以规定对应的输出图像的目标直方图分布（即输入图像的对比度调整变换）。利用指定的输出图像的目标直方图，可以导出将输入图像值映射到输出图像值的变换函数。此外，这种变换函数的转换可以被平滑化。这种平滑可以提供诸如减少与视频数据相关联的闪烁的优点。

12. 发明授权

US08126046B2 Flexible macroblock ordering and arbitrary slice ordering apparatus, system, and method 有权
标题翻译：灵活的宏块排序和任意切片排序装置，系统和方法
公开(公告)号：US08126046B2
公开(公告)日：2012-02-28
申请号：US11479324
申请日：2006-06-30
申请人： Yi-Jen Chiu , Prasenjit Biswas
发明人： Yi-Jen Chiu , Prasenjit Biswas
IPC分类号： H04N7/12 , H04B1/66
CPC分类号： H04N19/44 , H04N19/112 , H04N19/129 , H04N19/174 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/61 , H04N19/70
摘要： A system, apparatus, method, and article to process a flexible macroblock ordering and arbitrary slice ordering are described. The apparatus may include a video decoder. The video decoder includes a processor to store coding parameters of one or more neighboring macroblocks in a data buffer. The neighboring macroblocks are previously decoded macroblocks and are adjacent to a current macroblock. The processor is to store control parameters for each of the one or more neighboring macroblocks in the data buffer. The processor is to reconstruct coding parameters for the current macroblock using availability information associated with the neighboring macroblocks.
摘要翻译：描述了处理柔性宏块排序和任意片排序的系统，装置，方法和制品。该装置可以包括视频解码器。视频解码器包括处理器，用于存储数据缓冲器中的一个或多个相邻宏块的编码参数。相邻宏块是先前解码的宏块，并且与当前宏块相邻。处理器用于存储数据缓冲器中的一个或多个相邻宏块中的每一个的控制参数。处理器使用与相邻宏块相关联的可用性信息来重构当前宏块的编码参数。

13. 发明授权

US07952647B2 Method and apparatus of content adaptive detailing filtering for digital pictures 有权
标题翻译：数字图像内容自适应细化滤波的方法和装置
公开(公告)号：US07952647B2
公开(公告)日：2011-05-31
申请号：US11647023
申请日：2006-12-27
申请人： Yi-Jen Chiu
发明人： Yi-Jen Chiu
IPC分类号： H04N5/21 , H04N5/208
CPC分类号： G06T5/002 , G06T5/50 , G06T7/13 , G06T2207/10016 , G06T2207/20012 , G06T2207/20192
摘要： According to one embodiment, a method is disclosed. The method includes receiving video data performing pre-filtering on the data, performing content analysis is applied to identify an area of the data, applying a two-dimensional (2-D) 2nd gradient operation to extract a high frequency component and normalizing the high frequency component related to high frequency information from a previous picture.
摘要翻译：根据一个实施例，公开了一种方法。该方法包括接收对数据执行预滤波的视频数据，执行内容分析以识别数据的区域，应用二维（2-D）第二梯度操作来提取高频分量并使高标准化与前一图像的高频信息相关的频率分量。

14. 发明申请

US20110002389A1 METHODS AND SYSTEMS TO ESTIMATE MOTION BASED ON RECONSTRUCTED REFERENCE FRAMES AT A VIDEO DECODER 有权
标题翻译：基于视频解码器上重构的参考帧估计运动的方法和系统
公开(公告)号：US20110002389A1
公开(公告)日：2011-01-06
申请号：US12566823
申请日：2009-09-25
申请人： Lidong Xu , Yi-Jen Chiu , Wenhao Zhang
发明人： Lidong Xu , Yi-Jen Chiu , Wenhao Zhang
IPC分类号： H04N7/26
CPC分类号： H04N19/577 , H04N19/103 , H04N19/137 , H04N19/139 , H04N19/172 , H04N19/44 , H04N19/513 , H04N19/52 , H04N19/57 , H04N19/573 , H04N19/61
摘要： Methods and systems to apply motion estimation (ME) based on reconstructed reference pictures in a B frame or in a P frame at a video decoder. For a P frame, projective ME may be performed to obtain a motion vector (MV) for a current input block. In a B frame, both projective ME and mirror ME may be performed to obtain an MV for the current input block. The ME process can be performed on sub-partitions of the input block, which may reduce the prediction error without increasing the amount of MV information in the bitstream. Decoder-side ME can be applied for the prediction of existing inter frame coding modes, and traditional ME or the decoder-side ME can be adaptively selected to predict a coding mode based on a rate distribution optimization (RDO) criterion.
摘要翻译：基于在B帧或视频解码器的P帧中的重建参考图像应用运动估计（ME）的方法和系统。对于P帧，可以执行投影ME以获得当前输入块的运动矢量（MV）。在B帧中，可以执行投射ME和镜ME两者以获得当前输入块的MV。可以在输入块的子分区上执行ME处理，这可以在不增加比特流中的MV信息的量的情况下减少预测误差。解码器端ME可以应用于现有的帧间编码模式的预测，并且传统的ME或解码器侧的ME可以被自适应地选择以基于速率分布优化（RDO）准则来预测编码模式。

15. 发明申请

US20110002387A1 Techniques for motion estimation 审中-公开
标题翻译：运动估计技术
公开(公告)号：US20110002387A1
公开(公告)日：2011-01-06
申请号：US12657168
申请日：2010-01-14
申请人： Yi-Jen Chiu , Lidong Xu , Wenhao Zhang
发明人： Yi-Jen Chiu , Lidong Xu , Wenhao Zhang
IPC分类号： H04N7/26
CPC分类号： H04N19/57 , H04N19/44 , H04N19/61
摘要： Techniques are described that can be used to apply motion estimation (ME) based on reconstructed reference pictures in a B frame or in a P frame at a video decoder. For a P frame, projective ME may be performed to obtain a motion vector (MV) for a current input block. In a B frame, both projective ME and mirror ME may be performed to obtain an MV for the current input block. A metric an be used determining a metric for each pair of MV0 and MV1 that is found in the search path, where the metric is based on a combination of a first, second, and third metrics. The first metric is based on temporal frame correlation, a second metric is based on spatial neighbors of the reference blocks, and a third metric is based on the spatial neighbors of the current block.
摘要翻译：描述了可以用于基于B帧中的重建参考图像或视频解码器的P帧中的运动估计（ME）来应用的技术。对于P帧，可以执行投影ME以获得当前输入块的运动矢量（MV）。在B帧中，可以执行投射ME和镜ME两者以获得当前输入块的MV。用于确定在搜索路径中找到的每对MV0和MV1的度量的度量，其中度量基于第一，第二和第三度量的组合。第一度量基于时间帧相关，第二度量基于参考块的空间邻居，并且第三度量基于当前块的空间邻居。

16. 发明申请

US20100008417A1 Video encoding techniques 有权
标题翻译：视频编码技术
公开(公告)号：US20100008417A1
公开(公告)日：2010-01-14
申请号：US12217805
申请日：2008-07-09
申请人： Lidong Xu , Yi-Jen Chiu
发明人： Lidong Xu , Yi-Jen Chiu
IPC分类号： H04B1/66
CPC分类号： H04N19/82 , H04N19/117 , H04N19/147 , H04N19/17 , H04N19/46 , H04N19/61
摘要： Techniques are described that can be used to determine parameters of an adaptive Wiener filter to apply to a video region. The following parameters of the Wiener filter may be adjusted: coefficients, coefficient quantization, filter type, filter size, prediction mode, entropy encoding, and number of filter tables. The parameters associated with the lowest rate distortion cost of the encoder are selected for transmission with the encoded video. If not using adaptive Wiener filtering results in a lowest rate distortion cost, then adaptive Wiener filtering is not used for the video region. If using adaptive Wiener filtering results in a lowest rate distortion cost, then the parameters applied by the adaptive Wiener filtering that result in the lowest rate distortion cost are communicated with the filtered video region.
摘要翻译：描述了可以用于确定适用于视频区域的自适应维纳滤波器的参数的技术。可以调整维纳滤波器的以下参数：系数，系数量化，滤波器类型，滤波器大小，预测模式，熵编码和滤波器表数。选择与编码器的最低速率失真成本相关联的参数以便与编码视频一起传输。如果不使用自适应维纳滤波导致最低速率失真成本，则视频区域不使用自适应维纳滤波。如果使用自适应维纳滤波导致最低速率失真成本，则导致最低速率失真成本的自适应维纳滤波所应用的参数与滤波视频区域通信。

17. 发明申请

US20080158426A1 Method and apparatus for content adaptive spatial-temporal motion adaptive noise reduction 有权
标题翻译：用于内容自适应空间 - 时间运动自适应噪声降低的方法和装置
公开(公告)号：US20080158426A1
公开(公告)日：2008-07-03
申请号：US11647019
申请日：2006-12-27
申请人： Yi-Jen Chiu
发明人： Yi-Jen Chiu
IPC分类号： H04N5/213
CPC分类号： H04N5/213 , G06T5/002 , G06T5/20 , G06T7/246 , G06T2207/10016 , G06T2207/20012 , G06T2207/20021 , G06T2207/20032 , G06T2207/20192 , H04N5/144
摘要： According to one embodiment, a method is disclosed. The method includes receiving video data, measuring a temporal feature of motion movement of the data, measuring per-pixel spatial content features of the data, performing a local content analysis to classify pixels; and performing noise reduction filtering on the pixels.
摘要翻译：根据一个实施例，公开了一种方法。该方法包括接收视频数据，测量数据的运动移动的时间特征，测量数据的每像素空间内容特征，执行局部内容分析以对像素进行分类; 并对像素执行降噪滤波。

18. 发明申请

US20080056347A1 Flexible macroblock ordering and arbitrary slice ordering apparatus, system, and method 有权
标题翻译：灵活的宏块排序和任意切片排序装置，系统和方法
公开(公告)号：US20080056347A1
公开(公告)日：2008-03-06
申请号：US11479324
申请日：2006-06-30
申请人： Yi-Jen Chiu , Prasenjit Biswas
发明人： Yi-Jen Chiu , Prasenjit Biswas
IPC分类号： H04B1/66
CPC分类号： H04N19/44 , H04N19/112 , H04N19/129 , H04N19/174 , H04N19/176 , H04N19/196 , H04N19/197 , H04N19/61 , H04N19/70
摘要： A system, apparatus, method, and article to process a flexible macroblock ordering and arbitrary slice ordering are described. The apparatus may include a video decoder. The video decoder includes a processor to store coding parameters of one or more neighboring macroblocks in a data buffer. The neighboring macroblocks are previously decoded macroblocks and are adjacent to a current macroblock. The processor is to store control parameters for each of the one or more neighboring macroblocks in the data buffer. The processor is to reconstruct coding parameters for the current macroblock using availability information associated with the neighboring macroblocks.
摘要翻译：描述了处理柔性宏块排序和任意片排序的系统，装置，方法和制品。该装置可以包括视频解码器。视频解码器包括处理器，用于存储数据缓冲器中的一个或多个相邻宏块的编码参数。相邻宏块是先前解码的宏块，并且与当前宏块相邻。处理器用于存储数据缓冲器中的一个或多个相邻宏块中的每一个的控制参数。处理器使用与相邻宏块相关联的可用性信息来重构当前宏块的编码参数。

19. 发明申请

US20070297511A1 Chroma motion vector processing apparatus, system, and method 有权
标题翻译：色度运动矢量处理装置，系统和方法
公开(公告)号：US20070297511A1
公开(公告)日：2007-12-27
申请号：US11475413
申请日：2006-06-27
申请人： Yi-Jen Chiu , Mei-Chen Yeh , Prasenjit Biswas , Louis Lippincott
发明人： Yi-Jen Chiu , Mei-Chen Yeh , Prasenjit Biswas , Louis Lippincott
IPC分类号： H04N11/02 , H04N7/12
CPC分类号： H04N19/51 , H04N19/112 , H04N19/186 , H04N19/513 , H04N19/573
摘要： A system, apparatus, method, and article to process a chroma motion vector are described. The apparatus may include a video decoder. The video decoder includes a processor to receive a compressed video bitstream. The compressed video bitstream includes a stream of pictures. The stream of pictures includes a current slice and a current block within the slice. The processor pre-computes a chroma motion vector adjustment parameter for the current slice and determines a motion vector component for the current block within the current slice using the pre-computed chroma motion vector adjustment parameter. Other embodiments are described and claimed.
摘要翻译：描述了用于处理色度运动矢量的系统，装置，方法和物品。该装置可以包括视频解码器。视频解码器包括用于接收压缩视频比特流的处理器。压缩视频比特流包括图像流。图像流包括切片内的当前切片和当前块。处理器预先计算当前切片的色度运动矢量调整参数，并使用预先计算的色度运动矢量调整参数确定当前切片内当前块的运动矢量分量。描述和要求保护其他实施例。

20. 发明申请

US20070230582A1 Method for neighboring block data management of advanced video decoder 有权
标题翻译：高级视频解码器相邻块数据管理方法
公开(公告)号：US20070230582A1
公开(公告)日：2007-10-04
申请号：US11396102
申请日：2006-03-31
申请人： Yi-Jen Chiu , Prasanna Singamsetty , Munsi Haque
发明人： Yi-Jen Chiu , Prasanna Singamsetty , Munsi Haque
IPC分类号： H04N11/04 , H04N11/02
CPC分类号： H04N19/112 , H04N19/16 , H04N19/176 , H04N19/29
摘要： An embodiment improves the operation of a H.264 and Joint Scalable Video Codec (e.g., JSVC/H.264 Amendment 3) video decoder by managing neighboring block data during the decoding process. An embodiment pre-computes neighboring block tables to efficiently locate the neighboring block data required to decode a current macroblock. In particular, the pre-computed most probable joint neighboring block tables disclosed herein handle both macroblock adaptive frame field (MBAFF) coding and non-MBAFF coding. An embodiment is further capable of managing variable block sizes. Other embodiments are described and claimed.
摘要翻译：实施例通过在解码过程期间管理相邻块数据来改进H.264和联合可缩放视频编解码器（例如，JSVC / H.264修正版3）视频解码器的操作。实施例预先计算相邻块表以有效地定位解码当前宏块所需的相邻块数据。特别地，本文公开的预先计算的最可能的联合相邻块表处理宏块自适应帧场（MBAFF）编码和非MBAFF编码。一个实施例还能够管理可变块大小。描述和要求保护其他实施例。

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