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51. 发明授权

US09769472B2 Method and apparatus for Intra prediction using non-square blocks 有权
公开(公告)号：US09769472B2
公开(公告)日：2017-09-19
申请号：US14234152
申请日：2012-07-26
申请人： Shan Liu , Ximin Zhang , Shaw-Min Lei
发明人： Shan Liu , Ximin Zhang , Shaw-Min Lei
IPC分类号： H04N19/105 , H04N19/182 , H04N19/136 , H04N19/176 , H04N19/147 , H04N19/11 , H04N19/132 , H04N19/70 , H04N19/119 , H04N19/122 , H04N19/593 , H04N19/33
CPC分类号： H04N19/105 , H04N19/11 , H04N19/119 , H04N19/122 , H04N19/132 , H04N19/136 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/33 , H04N19/593 , H04N19/70
摘要： A method and apparatus for Intra prediction of a block based on neighboring pixels around the block are disclosed. Embodiments according to the present invention use square blocks as well as non-square blocks for Intra prediction. For a 2N×2N Luma CU (coding unit), the CU can be partitioned into 2N×N, N×2N, 2N×2N or N×N PUs. The 2N×N and N×2N PUs can be further processed by either square transforms only or both non-square and square transforms. In one embodiment, the 2N×N PU or the N×2N PU is processed as two N×N TUs (transform units) and each of the N×N TU is further split into smaller N×N TUs based on quad-tree split. In another embodiment, the 2N×N and N×2N PUs are processed as two 2N×0.5N and 0.5N×2N TUs respectively.

52. 发明授权

US08737485B2 Video coding mode selection system 有权
标题翻译：视频编码模式选择系统
公开(公告)号：US08737485B2
公开(公告)日：2014-05-27
申请号：US11669941
申请日：2007-01-31
申请人： Ximin Zhang , Hung-Ju Lee
发明人： Ximin Zhang , Hung-Ju Lee
IPC分类号： H04N7/12
CPC分类号： H04N19/19 , H04N19/122 , H04N19/136 , H04N19/147 , H04N19/154 , H04N19/176
摘要： A video system is provided including applying a transform to a picture for generating a transformed block of the picture; determining a type of the picture; selecting a coding mode with the transformed block based on the type of the picture; and applying the coding mode to the picture for encoding and displaying the picture.
摘要翻译：提供了一种视频系统，包括对图像进行变换以产生图像的变换块; 确定图片的类型; 基于图像的类型选择具有变换块的编码模式; 以及将编码模式应用于用于对图像进行编码和显示的图像。

53. 发明申请

US20130266064A1 Method and Apparatus for Intra Mode Coding in HEVC 有权
标题翻译： HEVC中模式内编码的方法与装置
公开(公告)号：US20130266064A1
公开(公告)日：2013-10-10
申请号：US13810205
申请日：2012-08-28
申请人： Ximin Zhang , Shan Liu
发明人： Ximin Zhang , Shan Liu
IPC分类号： H04N7/32
CPC分类号： H04N19/593 , H04N19/11 , H04N19/463 , H04N19/50 , H04N19/61
摘要： A method and apparatus for Intra prediction mode encoding or decoding based on multi-level most probable modes (MPMs) are disclosed. In one embodiment according to the present invention, the method and apparatus for encoding or decoding Intra prediction mode for 4×4 prediction unit (PU) use 19 Intra mode candidates to have full directional coverage or 35 Intra mode candidates as used by 8×8, 16×16 and 32×32 PUs. In another embodiment of the present invention, three MPMs are used to code the Intra modes. Various methods to derive the three MPMs based on the Intra modes of neighboring blocks are disclosed. In yet another embodiment of the present invention, the coding method for the remaining modes comprises fixed length coding. In addition, variable length coding for the remaining modes are also disclosed.
摘要翻译：公开了一种基于多级最可能模式（MPM）的帧内预测模式编码或解码的方法和装置。在根据本发明的一个实施例中，用于编码或解码用于4×4预测单元（PU）的帧内预测模式的方法和装置使用19个模式内候选以具有全方位覆盖或35×8模式候选，如8×8 ，16×16和32×32 PU。在本发明的另一实施例中，使用三个MPM来编码内部模式。公开了基于相邻块的帧内模式导出三个MPM的各种方法。在本发明的另一个实施例中，其余模式的编码方法包括固定长度编码。此外，还公开了其余模式的可变长度编码。

54. 发明授权

US08090022B2 Video coding system 有权
标题翻译：视频编码系统
公开(公告)号：US08090022B2
公开(公告)日：2012-01-03
申请号：US11620598
申请日：2007-01-05
申请人： Ximin Zhang
发明人： Ximin Zhang
IPC分类号： H04N11/02 , H04N11/04 , G06K9/36
CPC分类号： H04N19/17 , H04N19/124 , H04N19/139 , H04N19/159 , H04N19/176 , H04N19/177 , H04N19/513 , H04N19/61
摘要： A video coding system is provided including generating a motion vector for a macro block in a picture, the motion vectors indicative of displacement of an object in the macro block; grouping a cluster of the motion vectors; and adjusting a dynamic quantization parameter modulation of a subsequent picture based on the grouping for displaying the displacement of the object in the subsequent picture.
摘要翻译：提供了一种视频编码系统，包括生成图像中的宏块的运动矢量，指示宏块中的对象的位移的运动矢量; 对一组运动矢量进行分组; 以及基于用于显示随后图像中的对象的位移的分组来调整后续图像的动态量化参数调制。

55. 发明申请

US20110135003A1 UNI-MODAL BASED FAST HALF-PEL AND FAST QUARTER-PEL REFINEMENT FOR VIDEO ENCODING 审中-公开
标题翻译：用于视频编码的基于UNI-MODAL的快速傅立叶变换和快速四分之一精炼
公开(公告)号：US20110135003A1
公开(公告)日：2011-06-09
申请号：US13027027
申请日：2011-02-14
申请人： Ximin Zhang
发明人： Ximin Zhang
IPC分类号： H04N7/26
CPC分类号： H04N19/577 , H04N19/523
摘要： A method of half-pixel interpolation and quarter-pixel interpolation are adapted for reducing the impact of aliasing within motion estimation. To estimate a motion vector with quarter-pixel accuracy more efficiently, the improved method is able to skip checking certain points using the uni-modal assumption. In an embodiment, a diamond based refinement is implemented. Within the diamond based refinement are half-pel refinement and quarter-pel refinements. Furthermore, within the half-pel refinement are methods for on-the-fly interpolation and pre-computed interpolation. Within quarter-pel refinement, the method depends on whether four neighbor half-pel points are checked or just one or two half-pel points. Moreover, within each of the different embodiments is the ability to focus on quality or speed wherein different methods are implemented to maximize the desired function. In another embodiment, a square based refinement is implemented.
摘要翻译：半像素内插和四分之一像素插值的方法适用于减少运动估计中混叠的影响。为了更有效地估计四分之一像素精度的运动矢量，改进的方法能够使用单模假设跳过检查某些点。在一个实施例中，实现了基于钻石的细化。在基于钻石的细化中，是半像素细化和四分之一像素细化。此外，在半像素细化中是用于即时插值和预先计算的内插的方法。在四分之一像素细化中，该方法取决于是检查四个相邻半像素点还是仅检测一个或两个半像素点。此外，在每个不同的实施例中，能够专注于质量或速度，其中实施不同的方法以最大化期望的功能。在另一个实施例中，实现了基于平方的细化。

56. 发明授权

US07912129B2 Uni-modal based fast half-pel and fast quarter-pel refinement for video encoding 有权
标题翻译：基于单模式的快速半像素和快速四分之一像素细化用于视频编码
公开(公告)号：US07912129B2
公开(公告)日：2011-03-22
申请号：US11378148
申请日：2006-03-16
申请人： Ximin Zhang
发明人： Ximin Zhang
IPC分类号： H04B1/66
CPC分类号： H04N19/577 , H04N19/523
摘要： A method of half-pixel interpolation and quarter-pixel interpolation are adapted for reducing the impact of aliasing within motion estimation. To estimate a motion vector with quarter-pixel accuracy more efficiently, the improved method is able to skip checking certain points using the uni-modal assumption. In an embodiment, a diamond based refinement is implemented. Within the diamond based refinement are half-pel refinement and quarter-pel refinements. Furthermore, within the half-pel refinement are methods for on-the-fly interpolation and pre-computed interpolation. Within quarter-pel refinement, the method depends on whether four neighbor half-pel points are checked or just one or two half-pel points. Moreover, within each of the different embodiments is the ability to focus on quality or speed wherein different methods are implemented to maximize the desired function. In another embodiment, a square based refinement is implemented.
摘要翻译：半像素内插和四分之一像素插值的方法适用于减少运动估计中混叠的影响。为了更有效地估计四分之一像素精度的运动矢量，改进的方法能够使用单模假设跳过检查某些点。在一个实施例中，实现了基于钻石的细化。在基于钻石的细化中，是半像素细化和四分之一像素细化。此外，在半像素细化中是用于即时插值和预先计算的内插的方法。在四分之一像素细化中，该方法取决于是检查四个相邻半像素点还是仅检测一个或两个半像素点。此外，在每个不同的实施例中，能够专注于质量或速度，其中实施不同的方法以最大化期望的功能。在另一个实施例中，实现了基于平方的细化。

57. 发明申请

US20080165278A1 Human visual system based motion detection/estimation for video deinterlacing 审中-公开
标题翻译：基于人类视觉系统的视频去隔行运动检测/估计
公开(公告)号：US20080165278A1
公开(公告)日：2008-07-10
申请号：US11649401
申请日：2007-01-04
申请人： Ximin Zhang
发明人： Ximin Zhang
IPC分类号： H04N7/01 , H04N11/02
CPC分类号： H04N5/142 , H04N5/144 , H04N7/012 , H04N7/0142
摘要： A method of effectively de-interlacing a sequence of interlace-scanned pictures receives the sequence of pictures, forms a received sequence, and performs motion detection upon the received sequence. The method generates a first threshold for measuring the accuracy of the motion detection, and measures the accuracy of the motion detection, thereby forming a first accuracy measurement. The accuracy of the motion detection is measured by using a difference calculation. The method de-interlaces a picture in the received sequence by using the first accuracy measurement. The de-interlacing is motion adaptive.
摘要翻译：一种隔行扫描图像序列的有效地去隔行扫描的方法接收图像序列，形成接收到的序列，并且在接收到的序列上执行运动检测。该方法产生用于测量运动检测的精度的第一阈值，并且测量运动检测的精度，从而形成第一精度测量。通过使用差分计算来测量运动检测的精度。该方法通过使用第一精度测量来解码接收序列中的图像。去隔行扫描是运动自适应的。

58. 发明申请

US20080144951A1 System and method for effectively performing an adaptive encoding procedure 有权
标题翻译：用于有效执行自适应编码过程的系统和方法
公开(公告)号：US20080144951A1
公开(公告)日：2008-06-19
申请号：US11638810
申请日：2006-12-14
申请人： Ximin Zhang
发明人： Ximin Zhang
IPC分类号： H04B1/66 , G06K9/36
CPC分类号： H04N19/122 , H04N19/126 , H04N19/14 , H04N19/176 , H04N19/61
摘要： A system and method for effectively performing an adaptive encoding procedure includes a texture analyzer that initially determines texture characteristics for blocks of input image data. An image transformer converts the blocks of image data into sets of coefficients that represent the various blocks. A block categorizer utilizes the texture characteristics to associate texture categories with the sets of coefficients from the various blocks. Deadzone tables are provided for storing deadzone values that define deadzone regions for performing appropriate quantization procedures. A quantizer may then access the deadzone values from the deadzone tables to adaptively convert the coefficients into quantized coefficients according to their corresponding texture characteristics.
摘要翻译：用于有效执行自适应编码过程的系统和方法包括纹理分析器，其最初确定输入图像数据块的纹理特征。图像变换器将图像数据块转换为表示各种块的系数集合。块分类器利用纹理特征将纹理类别与来自各种块的系数集相关联。死区表用于存储定义死区的死区值，用于执行适当的量化过程。然后，量化器可以从死区表访问死区值，以根据其对应的纹理特征将系数自适应地转换为量化系数。

59. 发明申请

US20070199011A1 System and method for high quality AVC encoding 审中-公开
标题翻译：高质量AVC编码的系统和方法
公开(公告)号：US20070199011A1
公开(公告)日：2007-08-23
申请号：US11356832
申请日：2006-02-17
申请人： Ximin Zhang , Takao Yamazaki
发明人： Ximin Zhang , Takao Yamazaki
IPC分类号： H04N7/16
CPC分类号： H04N19/58 , H04N19/124 , H04N19/142 , H04N19/154 , H04N19/17 , H04N19/177 , H04N19/553 , H04N19/61
摘要： A video coding system receives as input a video sequence including a series of picture frames. One or more long term references are selected from the input video sequence, at least one of the long term references is a long term look-behind reference frame. Short term reference frames are also selected according to the standards. The frames are then re-ordered for encoding such that the long term look-behind reference is encoded first, followed by the remaining frames according to the conventional order dictated by the standards. Each frame is encoded according to motion estimation and motion compensation, and an intra prediction method that incorporates the use of the long term look-behind reference frame. Further, encoding of each long term look-behind reference frame includes quantization according to a controlled bit-rate. The bit-rate is increased for quantization of each long term look-behind reference frame, thereby increasing its quality. For each other frame, the bit rate is maintained at a normalized level.
摘要翻译：视频编码系统作为输入接收包括一系列相框的视频序列。从输入视频序列中选择一个或多个长期参考文献，长期参考文献中的至少一个是长期查看参考帧。也可根据标准选择短期参考系。然后将帧重新编码以进行编码，使得首先编码长期的后备参考，然后根据由标准规定的常规顺序来跟随其余的帧。每个帧根据运动估计和运动补偿进行编码，并且内帧预测方法结合使用长期查看参考帧。此外，每个长期查看参考帧的编码包括根据受控比特率的量化。对于每个长期查看参考帧的量化，比特率增加，从而提高其质量。对于每个其他帧，比特率保持在归一化水平。

60. 发明授权

US07092442B2 System and method for adaptive field and frame video encoding using motion activity 失效
标题翻译：使用运动活动的自适应场和帧视频编码的系统和方法
公开(公告)号：US07092442B2
公开(公告)日：2006-08-15
申请号：US10325986
申请日：2002-12-19
申请人： Ximin Zhang , Anthony Vetro , Huifang Sun
发明人： Ximin Zhang , Anthony Vetro , Huifang Sun
IPC分类号： H04N7/12
CPC分类号： H04N19/137 , H04N19/112 , H04N19/172
摘要： A method adaptively encodes a video including a sequence of images, where each image is a picture of two fields. Each image is first separated into a top-field and a bottom-field. Motion activity is extracted from the top-field and the bottom-field, and each image is encoded using either frame encoding or field encoding depending on the extracted motion activity.
摘要翻译：一种自适应地编码包括图像序列的视频，其中每个图像是两个场的图像。每个图像首先分为顶场和底场。从顶场和底场提取运动活动，并且根据提取的运动活动，使用帧编码或场编码对每个图像进行编码。

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