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1. 发明授权

US08687697B2 Coding of motion vector information 有权
公开(公告)号：US08687697B2
公开(公告)日：2014-04-01
申请号：US13455094
申请日：2012-04-24
申请人： Sridhar Srinivasan , Pohsiang Hsu , Thomas W. Holcomb , Kunal Mukerjee , Bruce Chih-Lung Lin
发明人： Sridhar Srinivasan , Pohsiang Hsu , Thomas W. Holcomb , Kunal Mukerjee , Bruce Chih-Lung Lin
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , G06K9/36 , G06K9/46
CPC分类号： H04N19/137 , G06K9/36 , G06K9/46 , H04N7/52 , H04N19/132 , H04N19/139 , H04N19/176 , H04N19/51 , H04N19/513 , H04N19/61 , H04N19/63 , H04N19/91
摘要： Techniques and tools for encoding and decoding motion vector information for video images are described. For example, a video encoder yields an extended motion vector code by jointly coding, for a set of pixels, a switch code, motion vector information, and a terminal symbol indicating whether subsequent data is encoded for the set of pixels. In another aspect, an encoder/decoder selects motion vector predictors for macroblocks. In another aspect, a video encoder/decoder uses hybrid motion vector prediction. In another aspect, a video encoder/decoder signals a motion vector mode for a predicted image. In another aspect, a video decoder decodes a set of pixels by receiving an extended motion vector code, which reflects joint encoding of motion information together with intra/inter-coding information and a terminal symbol. The decoder determines whether subsequent data exists for the set of pixels based on e.g., the terminal symbol.

2. 发明申请

US20120269266A1 REGIONS OF INTEREST FOR QUALITY ADJUSTMENTS 有权
标题翻译：质量调整区域
公开(公告)号：US20120269266A1
公开(公告)日：2012-10-25
申请号：US13539730
申请日：2012-07-02
申请人： Chih-Lung Lin , Ming-Chieh Lee , Stacey Spears , Philip Lawrence Garrett , Anil Madhav Murching , Amy Jennifer Beauford , Thomas W. Holcomb , Xiping Zuo
发明人： Chih-Lung Lin , Ming-Chieh Lee , Stacey Spears , Philip Lawrence Garrett , Anil Madhav Murching , Amy Jennifer Beauford , Thomas W. Holcomb , Xiping Zuo
IPC分类号： H04N7/26
CPC分类号： H04N19/17 , H04N19/124 , H04N19/147 , H04N19/162 , H04N19/61
摘要： Quality settings established by an encoder are adjusted based on information associated with regions of interest (“ROIs”). For example, quantization step sizes can be reduced (to improve quality) or increased (to reduce bit rate). ROIs can be identified and quality settings can be adjusted based on input received from a user interface. An overlap setting can be determined for a portion of a picture that corresponds to an ROI overlap area. For example, an overlap setting is chosen from step sizes corresponding to a first overlapping ROI and a second overlapping ROI, or from relative reductions in step size corresponding to the first ROI and the second ROI. ROIs can be parameterized by information (e.g., using data structures) that indicates spatial dimensions of the ROIs and quality adjustment information (e.g., dead zone information, step size information, and quantization mode information).
摘要翻译：基于与兴趣区域（ROI）相关联的信息来调整由编码器建立的质量设置。例如，可以减小量化步长（提高质量）或增加（以减少比特率）。可以识别ROI，并且可以基于从用户界面接收的输入来调整质量设置。可以针对对应于ROI重叠区域的图像的一部分来确定重叠设置。例如，从与第一重叠ROI和第二重叠ROI相对应的步长尺寸或从与第一ROI和第二ROI对应的步长的相对减小中选择重叠设置。可以通过指示ROI的空间维度和质量调整信息（例如，死区信息，步长信息和量化模式信息）的信息（例如，使用数据结构）对ROI进行参数化。

3. 发明申请

US20120213280A1 CODING OF MOTION VECTOR INFORMATION 有权
标题翻译：编码运动矢量信息
公开(公告)号：US20120213280A1
公开(公告)日：2012-08-23
申请号：US13455094
申请日：2012-04-24
申请人： Sridhar Srinivasan , Pohsiang Hsu , Thomas W. Holcomb , Kunal Mukerjee , Bruce Chih-Lung Lin
发明人： Sridhar Srinivasan , Pohsiang Hsu , Thomas W. Holcomb , Kunal Mukerjee , Bruce Chih-Lung Lin
IPC分类号： H04N7/32
CPC分类号： H04N19/137 , G06K9/36 , G06K9/46 , H04N7/52 , H04N19/132 , H04N19/139 , H04N19/176 , H04N19/51 , H04N19/513 , H04N19/61 , H04N19/63 , H04N19/91
摘要： Techniques and tools for encoding and decoding motion vector information for video images are described. For example, a video encoder yields an extended motion vector code by jointly coding, for a set of pixels, a switch code, motion vector information, and a terminal symbol indicating whether subsequent data is encoded for the set of pixels. In another aspect, an encoder/decoder selects motion vector predictors for macroblocks. In another aspect, a video encoder/decoder uses hybrid motion vector prediction. In another aspect, a video encoder/decoder signals a motion vector mode for a predicted image. In another aspect, a video decoder decodes a set of pixels by receiving an extended motion vector code, which reflects joint encoding of motion information together with intra/inter-coding information and a terminal symbol. The decoder determines whether subsequent data exists for the set of pixels based on e.g., the terminal symbol.
摘要翻译：描述用于编码和解码用于视频图像的运动矢量信息的技术和工具。例如，视频编码器通过针对一组像素共同编码一个开关码，运动矢量信息和指示后续数据是否被编码用于像素集合的终端符号来产生扩展运动矢量码。在另一方面，编码器/解码器为宏块选择运动矢量预测器。在另一方面，视频编码器/解码器使用混合运动矢量预测。在另一方面，视频编码器/解码器针对预测图像发送运动矢量模式。在另一方面，视频解码器通过接收扩展运动矢量码来解码一组像素，该扩展运动矢量码反映运动信息的联合编码以及帧内/帧间编码信息和终端符号。解码器基于例如终端符号确定对于像素集合是否存在后续数据。

4. 发明授权

US08243820B2 Decoding variable coded resolution video with native range/resolution post-processing operation 有权
标题翻译：用原始范围/分辨率后处理操作解码可变编码分辨率视频
公开(公告)号：US08243820B2
公开(公告)日：2012-08-14
申请号：US11118686
申请日：2005-04-29
申请人： Thomas W. Holcomb , Chih-Lung Lin , Pohsiang Hsu , Sridhar Srinivasan
发明人： Thomas W. Holcomb , Chih-Lung Lin , Pohsiang Hsu , Sridhar Srinivasan
IPC分类号： H04N7/12
CPC分类号： H04N19/59 , H04N19/107 , H04N19/136 , H04N19/152 , H04N19/156 , H04N19/164 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/179 , H04N19/46 , H04N19/70 , H04N19/80
摘要： A video codec provides for encoding and decoding pictures of a video sequence at various coded resolutions, such that pictures can be encoded at lower coded resolutions based on bit rate or other constraints while maintaining a consistent display resolution. The video codec further provide for encoding and decoding pictures of the video sequence at ranges lower than that used for display, and then expanding the range after decoding for display. The video codec applies post-processing operations, such as de-blocking, de-ringing, and color conversion, at the native resolution and range of the decoded video, prior to range expansion and upsampling for display.
摘要翻译：视频编解码器提供以各种编码分辨率编码和解码视频序列的图像，使得可以在保持一致的显示分辨率的情况下，以比特率或其他约束为基础，以较低的编码分辨率编码图像。视频编解码器进一步提供对视频序列的图像进行编码和解码，范围低于用于显示的视频序列，然后扩展解码后的范围进行显示。视频编解码器在范围扩展和上采样显示之前，以解码视频的原始分辨率和范围应用后处理操作，如解块，去声和颜色转换。

5. 发明申请

US20100189183A1 MULTIPLE BIT RATE VIDEO ENCODING USING VARIABLE BIT RATE AND DYNAMIC RESOLUTION FOR ADAPTIVE VIDEO STREAMING 有权
标题翻译：使用可变位速率和动态分辨率进行自适应视频流的多位速率视频编码
公开(公告)号：US20100189183A1
公开(公告)日：2010-07-29
申请号：US12362420
申请日：2009-01-29
申请人： Chuang Gu , Chun-Wei Chan , William Chen , Stacey Spears , Thomas W. Holcomb , Chih-Lung Lin , Sanjeev Mehrotra
发明人： Chuang Gu , Chun-Wei Chan , William Chen , Stacey Spears , Thomas W. Holcomb , Chih-Lung Lin , Sanjeev Mehrotra
IPC分类号： H04N7/26
CPC分类号： H04N21/4621 , H04N19/124 , H04N19/14 , H04N19/149 , H04N19/177 , H04N19/61 , H04N19/85 , H04N21/23439 , H04N21/6373 , H04N21/8456
摘要： A video encoding system encodes video streams for multiple bit rate video streaming using an approach that permits the encoded bit rate to vary subject to a peak bit rate and average bit rate constraints for higher quality streams, while a bottom bit rate stream is encoded to achieve a constant chunk rate. The video encoding system also dynamically decides an encoding resolution for segments of the multiple bit rate video streams that varies with video complexity so as to achieve a better visual experience for multiple bit rate streaming.
摘要翻译：视频编码系统使用允许编码比特率根据高质量流的峰比特率和平均比特率约束而变化的方法对多个比特率视频流的视频流进行编码，而底部比特率流被编码以实现恒定的块率。视频编码系统还动态地决定了随着视频复杂度而变化的多个比特率视频流的段的编码分辨率，从而为多个比特率流实现更好的视觉体验。

6. 发明授权

US07616692B2 Hybrid motion vector prediction for interlaced forward-predicted fields 有权
标题翻译：用于交错前向预测场的混合运动矢量预测
公开(公告)号：US07616692B2
公开(公告)日：2009-11-10
申请号：US10933956
申请日：2004-09-02
申请人： Thomas W. Holcomb , Pohsiang Hsu , Chih-Lung Lin
发明人： Thomas W. Holcomb , Pohsiang Hsu , Chih-Lung Lin
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04B1/66
CPC分类号： H04N19/16 , H04N19/137 , H04N19/196 , H04N19/46 , H04N19/51 , H04N19/61 , H04N19/70
摘要： Techniques and tools for hybrid motion vector prediction for interlaced forward-predicted fields are described. For example, a video decoder determines an initial motion vector predictor for a motion vector of an interlaced forward-predicted field. The decoder then checks a variation condition based at least in part on a predictor polarity selection (e.g., same or opposite), the initial motion vector predictor, and neighbor motion vectors. If the variation condition is satisfied, the decoder uses one of the neighbor motion vectors as a final motion vector predictor. Otherwise, the decoder uses the initial motion vector predictor as the final motion vector predictor. A video encoder performs corresponding processing.
摘要翻译：描述了用于隔行正向预测场的混合运动矢量预测的技术和工具。例如，视频解码器确定用于隔行扫描前向预测场的运动矢量的初始运动矢量预测器。解码器至少部分地基于预测器极性选择（例如相同或相反），初始运动矢量预测器和相邻运动矢量来检查变化条件。如果满足变化条件，则解码器使用相邻运动矢量之一作为最终运动矢量预测器。否则，解码器使用初始运动矢量预测器作为最终运动矢量预测器。视频编码器执行相应的处理。

7. 发明授权

US07602851B2 Intelligent differential quantization of video coding 有权
标题翻译：智能差分量化的视频编码
公开(公告)号：US07602851B2
公开(公告)日：2009-10-13
申请号：US10623195
申请日：2003-07-18
申请人： Ming-Chieh Lee , Bruce Chih-Lung Lin , Pohsiang Hsu , Thomas W. Holcomb
发明人： Ming-Chieh Lee , Bruce Chih-Lung Lin , Pohsiang Hsu , Thomas W. Holcomb
IPC分类号： H04N7/12
CPC分类号： H04N19/17 , H04N19/124 , H04N19/137 , H04N19/176
摘要： With intelligent differential quantization, a video codec intelligently quantizes video at differing strength levels within a frame, such as on a macroblock (MB) or a group of MB basis. This allows the codec to control bit usage on a finer granularity than a frame to meet hardware constraints, as well as providing perceptual optimization by coarsely quantizing unimportant regions, while finely quantizing important regions within a frame. The intelligent differential quantization uses motion information gathered from encoding and analysis of the video to classify the importance of different regions of the image, and quantizes the regions accordingly. In addition, the intelligent differential quantization include efficient signaling of information as to the differential quantization strengths in the compressed bit stream.
摘要翻译：通过智能差分量化，视频编解码器在帧内以不同的强度水平智能量化视频，例如在宏块（MB）或一组基于MB的基础上。这允许编解码器以比帧更精细的粒度来控制比特使用以满足硬件约束，以及通过粗略量化不重要区域来提供感知优化，同时精细量化帧内的重要区域。智能差分量化使用从视频的编码和分析中收集的运动信息来分类图像的不同区域的重要性，并且相应地量化该区域。此外，智能差分量化包括关于压缩比特流中的差分量化强度的信息的有效信令。

8. 发明授权

US07599438B2 Motion vector block pattern coding and decoding 有权
标题翻译：运动矢量块模式编码和解码
公开(公告)号：US07599438B2
公开(公告)日：2009-10-06
申请号：US10933958
申请日：2004-09-02
申请人： Thomas W. Holcomb , Pohsiang Hsu , Sridhar Srinivasan , Chih-Lung Lin
发明人： Thomas W. Holcomb , Pohsiang Hsu , Sridhar Srinivasan , Chih-Lung Lin
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04B1/66
CPC分类号： H04N19/16 , H04N19/102 , H04N19/109 , H04N19/11 , H04N19/112 , H04N19/117 , H04N19/129 , H04N19/13 , H04N19/137 , H04N19/146 , H04N19/147 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/184 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/51 , H04N19/52 , H04N19/523 , H04N19/593 , H04N19/61 , H04N19/63 , H04N19/70 , H04N19/82 , H04N19/86 , H04N19/93
摘要： Techniques and tools for using motion vector block patterns in video encoding and decoding are described. In general, a motion vector block pattern signals the presence or absence of motion vector data for a macroblock with multiple motion vectors. For example, a video decoder decodes variable length codes that represent motion vector block patterns. Each motion vector block pattern has one bit per corresponding luminance motion vector of a macroblock with multiple luminance motion vectors, where the one bit indicates whether or not motion vector data for the corresponding luminance motion vector is signaled. A video encoder performs corresponding encoding.
摘要翻译：描述了在视频编码和解码中使用运动矢量块模式的技术和工具。一般来说，运动矢量块模式用具有多个运动矢量的宏块发送运动矢量数据的存在或不存在。例如，视频解码器解码表示运动矢量块图案的可变长度码。每个运动矢量块图案具有具有多个亮度运动矢量的宏块的每个对应的亮度运动矢量的一位，其中一位指示是否用信号通知相应的亮度运动矢量的运动矢量数据。视频编码器执行相应的编码。

9. 发明申请

US20080192822A1 COMPLEXITY-BASED ADAPTIVE PREPROCESSING FOR MULTIPLE-PASS VIDEO COMPRESSION 有权
标题翻译：用于多通道视频压缩的基于复杂度的自适应预处理
公开(公告)号：US20080192822A1
公开(公告)日：2008-08-14
申请号：US11673516
申请日：2007-02-09
申请人： Cheng Chang , Chih-Lung Lin , Thomas W. Holcomb
发明人： Cheng Chang , Chih-Lung Lin , Thomas W. Holcomb
IPC分类号： H04N7/12
CPC分类号： H04N19/86 , H04N19/117 , H04N19/124 , H04N19/137 , H04N19/14 , H04N19/15 , H04N19/172 , H04N19/177 , H04N19/194 , H04N19/61
摘要： Multiple-pass video encoding systems and techniques are described which utilize statistics taken during a first-pass encoding to create complexity measurements for video data which is to be encoded. By analyzing these complexity measurements, preprocessing decisions, such as, for example, the determination of strength of denoise filters, can be made with greater accuracy. In one implementation, these complexity measurements take the form of calculation of temporal and spatial complexity parameters, which are then used to compute a unified complexity parameter for each group of pictures being encoded.
摘要翻译：描述了多通道视频编码系统和技术，其利用在一次通过编码期间进行的统计以创建要被编码的视频数据的复杂度测量。通过分析这些复杂性测量，可以更准确地进行预处理决策，例如去噪滤波器的强度的确定。在一个实现中，这些复杂度测量采用时间和空间复杂度参数的计算形式，然后将其用于为正被编码的每组图像计算统一的复杂度参数。

10. 发明授权

US08917768B2 Coding of motion vector information 有权
标题翻译：运动矢量信息编码
公开(公告)号：US08917768B2
公开(公告)日：2014-12-23
申请号：US12275782
申请日：2008-11-21
申请人： Sridhar Srinivasan , Pohsiang Hsu , Thomas W. Holcomb , Kunal Mukerjee , Bruce Chih-Lung Lin
发明人： Sridhar Srinivasan , Pohsiang Hsu , Thomas W. Holcomb , Kunal Mukerjee , Bruce Chih-Lung Lin
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/51 , H04N19/61 , G06K9/36 , G06K9/46 , H04N19/583 , H04N19/91
CPC分类号： H04N19/137 , G06K9/36 , G06K9/46 , H04N7/52 , H04N19/132 , H04N19/139 , H04N19/176 , H04N19/51 , H04N19/513 , H04N19/61 , H04N19/63 , H04N19/91
摘要： Techniques and tools for encoding and decoding motion vector information for video images are described. For example, a video encoder yields an extended motion vector code by jointly coding, for a set of pixels, a switch code, motion vector information, and a terminal symbol indicating whether subsequent data is encoded for the set of pixels. In another aspect, an encoder/decoder selects motion vector predictors for macroblocks. In another aspect, a video encoder/decoder uses hybrid motion vector prediction. In another aspect, a video encoder/decoder signals a motion vector mode for a predicted image. In another aspect, a video decoder decodes a set of pixels by receiving an extended motion vector code, which reflects joint encoding of motion information together with intra/inter-coding information and a terminal symbol. The decoder determines whether subsequent data exists for the set of pixels based on e.g., the terminal symbol.
摘要翻译：描述用于编码和解码用于视频图像的运动矢量信息的技术和工具。例如，视频编码器通过针对一组像素共同编码一个开关码，运动矢量信息和指示后续数据是否被编码用于像素集合的终端符号来产生扩展运动矢量码。在另一方面，编码器/解码器为宏块选择运动矢量预测器。在另一方面，视频编码器/解码器使用混合运动矢量预测。在另一方面，视频编码器/解码器针对预测图像发送运动矢量模式。在另一方面，视频解码器通过接收扩展运动矢量码来解码一组像素，该扩展运动矢量码反映运动信息的联合编码以及帧内/帧间编码信息和终端符号。解码器基于例如终端符号确定对于像素集合是否存在后续数据。

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