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61. 发明申请

WO2014071096A1 PRESERVING ROUNDING ERRORS IN VIDEO CODING 审中-公开
标题翻译：保留视频编码中的圆角错误
公开(公告)号：WO2014071096A1
公开(公告)日：2014-05-08
申请号：PCT/US2013/067909
申请日：2013-11-01
申请人： MICROSOFT CORPORATION
发明人： BIVOLARSKY, Lazar
IPC分类号： H04N19/523 , G06T3/40 , H04N19/59 , H04N19/503 , H04N19/587 , H04N19/46 , H04N19/89 , H04N19/53 , H04N19/51
CPC分类号： H04N19/59 , G06T3/4053 , H04N19/37 , H04N19/46 , H04N19/513 , H04N19/523 , H04N19/587 , H04N19/895 , H04N19/90
摘要： An input receives a video signal comprising a plurality of frames of a video image, each frame comprising a plurality of higher resolution samples. A projection generator generates a different respective projection of each of a sequence of the frames, each projection comprising a plurality of lower resolution samples, wherein the lower resolution samples of the different projections represent different but overlapping groups of the higher resolution samples which overlap spatially in a plane of the video image. Inter frame prediction coding is performed between the projections of different ones of the frames based on a motion vector for each prediction. The motion vector is scaled down from a higher resolution scale corresponding to the higher resolution samples to a lower resolution scale corresponding to the lower resolution samples. An indication of a rounding error resulting from this scaling is determined and signalled to the receiving terminal.
摘要翻译：输入接收包括视频图像的多个帧的视频信号，每个帧包括多个更高分辨率的样本。投影产生器生成帧的序列中的每一个的不同的相应投影，每个投影包括多个较低分辨率样本，其中不同投影的较低分辨率样本表示在空间上重叠的较高分辨率样本的不同但重叠的组，视频图像的平面。基于每个预测的运动矢量，在不同的帧的投影之间执行帧间预测编码。将运动矢量从对应于较高分辨率样本的较高分辨率标度按比例缩小至对应于较低分辨率样本的较低分辨率。确定由此缩放产生的舍入误差的指示，并将其发信号通知给接收终端。

62. 发明申请

WO2005101986A2 IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD 审中-公开
标题翻译：图像处理装置和图像处理方法
公开(公告)号：WO2005101986A2
公开(公告)日：2005-11-03
申请号：PCT/JP2005/000801
申请日：2005-01-17
申请人： SONY COMPUTER ENTERTAINMENT INC.
发明人： KOGUCHI, Takahiro , INADA, Tetsugo
IPC分类号： G06T15/04 , G09G5/00 , H04N19/50 , H04N19/503 , H04N19/59 , H04N19/61 , H04N19/625 , H04N19/63 , H04N19/80 , H04N19/91
CPC分类号： H04N19/43 , G09G2320/0261 , G09G2340/12
摘要： A frame difference computation unit of a texture unit identifies a prediction macroblock, by evaluating sums of absolute differences between a target macroblock in a first frame image and a candidate for prediction macroblock in a second frame image, and determines a motion vector. The frame difference computation unit supplies information on motion vector for the macroblocks and image difference data to a shader unit, in addition to a frame image that serves as a reference for motion compensation. A frame encoding processing unit performs interframe compression encoding using data from the texture data, so as to generate encoded image data.
摘要翻译：纹理单元的帧差分计算单元通过估计第一帧图像中的目标宏块与第二帧图像中的预测宏块的候选者之间的绝对差的和来识别预测宏块，并且确定运动矢量。除了用作运动补偿的参考的帧图像之外，帧差分计算单元还将关于宏块的运动矢量和图像差异数据的信息提供给着色器单元。帧编码处理单元使用来自纹理数据的数据进行帧间压缩编码，以便生成编码图像数据。

63. 发明申请

WO00001158A1 ENCODER AND ENCODING METHOD 审中-公开
标题翻译：编码器和编码方法
公开(公告)号：WO00001158A1
公开(公告)日：2000-01-06
申请号：PCT/JP1999/003477
申请日：1999-06-29
IPC分类号： H04N19/119 , H04N19/132 , H04N19/139 , H04N19/149 , H04N19/177 , H04N19/196 , H04N19/423 , H04N19/50 , H04N19/51 , H04N19/59 , H04N19/61 , H04N19/625 , H04N19/85 , H04N19/91 , H04N19/94 , H04N7/32
CPC分类号： H04N19/59 , H04N19/105 , H04N19/117 , H04N19/124 , H04N19/139 , H04N19/149 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/50 , H04N19/51 , H04N19/61 , H04N19/80
摘要： An encoder in which a video signal is subjected to signal processing by a signal processing circuit and to motion compensation, differential data generated by the motion compensation is subjected to orthogonal transformation to generated coefficient data, encoded data is generated by quantizing the coefficient data, and the quantization step size for quantization is changed according to the amount of encoded data generated, the signal processing circuit being provided with moving vector detecting means for detecting a moving vector of the video signal, motion vector amount-of-codes measuring means for calculating the amount of codes of the moving vector based on the moving vector, coefficient data number-of-codes measuring means for measuring the amount of codes of the coefficient data, and number-of-pixels changing means for changing the number of pixels of the video signal according to the amount of codes of the moving vector and the amount of codes of the coefficient data.
摘要翻译：对视频信号进行信号处理电路的信号处理和运动补偿的编码器，通过运动补偿生成的差分数据进行正交变换，生成系数数据，通过量化系数数据生成编码数据，用于量化的量化步长根据生成的编码数据的量而改变，信号处理电路设置有用于检测视频信号的移动矢量的运动矢量检测装置，用于计算视频信号的运动矢量量测量装置基于运动矢量的运动矢量的代码量，用于测量系数数据的代码量的系数数据代码测量装置和用于改变视频像素数的像素数改变装置信号根据移动矢量的代码量和系数数据的代码量。

64. 发明申请

WO99038331A1 DEVICE AND METHOD FOR DETECTING MOVING VECTOR 审中-公开
标题翻译：用于检测移动矢量的装置和方法
公开(公告)号：WO99038331A1
公开(公告)日：1999-07-29
申请号：PCT/JP1999/000317
申请日：1999-01-26
IPC分类号： H04N19/50 , G06T9/00 , H04N19/105 , H04N19/112 , H04N19/139 , H04N19/172 , H04N19/196 , H04N19/423 , H04N19/503 , H04N19/51 , H04N19/53 , H04N19/57 , H04N19/59 , H04N7/36
CPC分类号： H04N19/53
摘要： A device and method for detecting a moving vector with high precision by a small amount of calculation for motion compensative prediction coding for motion picture. A frame moving vector and a field moving vector of an interlace motion picture are detected to perform motion compensation by adaptively switching the vector from one to the other. A sub-sample filter (10) reduces the original picture, and a vector detector (14) detects a moving vector. Then, around the position, vector detectors (30 to 38) detect true moving vectors (frame and field). To detect the moving vectors in the original picture, the search range is so expanded as to extend into the reduced picture. By thus expanding the search range, the detection precision is improved.
摘要翻译：一种用于通过少量计算运动补偿预测编码运动图像来高精度检测运动矢量的装置和方法。通过自适应地将矢量从一个切换到另一个来检测交错运动图像的帧运动矢量和场运动矢量以执行运动补偿。子样本滤波器（10）减少原始图像，并且矢量检测器（14）检测移动矢量。然后，在位置周围，矢量检测器（30〜38）检测真实的移动矢量（帧和场）。为了检测原始图像中的移动矢量，搜索范围被扩展以延伸到缩小的图像中。通过扩大搜索范围，提高了检测精度。

65. 发明申请

WO2023049043A1 METHODS AND APPARATUS FOR ADAPTIVE REORDERING FOR REFERENCE FRAMES 审中-公开
公开(公告)号：WO2023049043A1
公开(公告)日：2023-03-30
申请号：PCT/US2022/043805
申请日：2022-09-16
申请人： TENCENT AMERICA LLC
发明人： ZHAO, Liang , ZHAO, Xin , LIU, Shan
IPC分类号： H04N19/59 , H04N19/134 , H04N19/176 , H04N19/70 , H04N19/577 , H04N19/52
摘要： This disclosure relates to adaptively reordering reference frames for video coding technologies. Template matching (TM) may be used to reorder the reference frames or reference frame pairs for each block by comparing the difference between the template of a current block and the template of a reference block with reference to the motion information of the spatial reference motion information (or spatial motion vectors) and/or temporal reference motion information (or temporal motion vectors). The difference between the template of current block and the template of the reference block may be calculated for each spatial reference motion information and/or temporal reference motion information, and marked as the score value of the associated reference frames or reference frame pairs. The available reference frames or reference frame pairs are ranked based on the score value.

66. 发明申请

WO2023048500A1 영상 부호화/복호화 방법, 비트스트림을 전송하는 방법 및 비트스트림을 저장한 기록 매체 审中-公开
公开(公告)号：WO2023048500A1
公开(公告)日：2023-03-30
申请号：PCT/KR2022/014252
申请日：2022-09-23
申请人： 엘지전자 주식회사
发明人： 남정학 , 유선미 , 임재현 , 김승환
IPC分类号： H04N19/59 , H04N19/70 , H04N19/132 , H04N19/146 , H04N19/184 , H04N19/186 , H04N19/124
摘要： 영상 부호화/복호화 방법, 비트스트림 전송 방법 및 비트스트림을 저장하는 컴퓨터 판독 가능한 기록 매체가 제공된다. 본 개시에 따른 영상 복호화 방법은, 영상 복호화 장치에 의해 수행되는 영상 복호화 방법으로서, 현재 영상에 대한 해상도 정보를 비트스트림으로부터 획득하는 단계; 상기 해상도 정보에 기반하여, 상기 현재 영상에 적용될 해상도를 결정하는 단계; 및 상기 현재 영상의 해상도를 상기 결정된 해상도로 변경하는 단계를 포함하는 영상 복호화 방법일 수 있다.

67. 发明申请

WO2023048464A1 영상 부호화/복호화 방법, 비트스트림을 전송하는 방법 및 비트스트림을 저장한 기록 매체 审中-公开
公开(公告)号：WO2023048464A1
公开(公告)日：2023-03-30
申请号：PCT/KR2022/014111
申请日：2022-09-21
申请人： 엘지전자 주식회사
发明人： 남정학 , 유선미 , 임재현 , 김승환
IPC分类号： H04N19/59 , H04N19/132 , H04N19/105 , H04N19/147 , H04N19/184 , H04N19/186 , H04N19/124
摘要： 영상 부호화/복호화 방법, 비트스트림 전송 방법 및 비트스트림을 저장하는 컴퓨터 판독 가능한 기록 매체가 제공된다. 본 개시에 따른 영상 부호화 방법은, 영상 부호화 장치에 의해 수행되는 영상 부호화 방법으로서, 현재 영상과 참조 영상 간 유사도에 대한 정보 및 상기 현재 영상의 복잡도에 대한 정보를 획득하는 단계; 상기 유사도에 대한 정보 및 상기 복잡도에 대한 정보에 기반하여, 하나 이상의 후보 해상도들의 비트율 정보와 왜곡 정보를 예측하는 단계; 및 상기 비트율 정보와 상기 왜곡 정보에 기반하여, 상기 후보 해상도들 중에서 상기 현재 영상에 적용될 해상도를 선택하는 단계를 포함하는 영상 부호화 방법일 수 있다.

68. 发明申请

WO2023021362A1 VIDEO CODING CONCEPT FOR HANDLING OF MOTION-VECTORS IN STREAMING SCENARIOS 审中-公开
公开(公告)号：WO2023021362A1
公开(公告)日：2023-02-23
申请号：PCT/IB2022/057331
申请日：2022-08-05
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： SKUPIN, Robert , BARTNIK, Christian , WIEKOWSKI, Adam , SANCHEZ DE LA FUENTE, Yago , HELLGE, Cornelius , BROSS, Benjamin , SCHIERL, Thomas , WIEGAND, Thomas , MARPE, Detlev
IPC分类号： H04N19/51 , H04N19/597 , H04N19/70 , H04N19/59 , H04N19/177
摘要： A motion-vector wrap-around coding tool may be reliably used, for instance, in the context of segmental video bitstream formation under switching between different video bitstream representations. A video encoder encodes a video and an indication into a data stream, which is valid for a sequence of pictures, and indicates that certain or all Random Access Skipped Leading (RASL) pictures within the sequence of pictures are coded in a manner excluding a predetermined set of one or more coding tools which includes a wrap-around motion compensation tool. A video decoder decodes from a data stream an indication that indicates that certain or all RASL pictures within a sequence of pictures are coded in a manner excluding a predetermined set of one or more coding tools including a wrap-around motion compensation tool.

69. 发明申请

WO2022251621A1 PIXEL-LEVEL VIDEO PREDICTION WITH IMPROVED PERFORMANCE AND EFFICIENCY 审中-公开
公开(公告)号：WO2022251621A1
公开(公告)日：2022-12-01
申请号：PCT/US2022/031326
申请日：2022-05-27
申请人： GOOGLE LLC
发明人： BABAEIZADEH, Mohammad , LEVINE, Sergey Vladimir , SAFFAR, Mohammad Taghi , NAIR, Suraj , FINN, Chelsea Breanna , ERHAN, Dumitru
IPC分类号： G06N3/04 , G06N3/08 , H04N19/42 , H04N19/503 , H04N19/59
摘要： One aspect provides a machine-learned video prediction model configured to receive and process one or more previous video frames to generate one or more predicted subsequent video frames, wherein the machine-learned video prediction model comprises a convolutional variational auto encoder, and wherein the convolutional variational auto encoder comprises an encoder portion comprising one or more encoding cells and a decoder portion comprising one or more decoding cells.

70. 发明申请

WO2022213571A1 METHOD AND APPARATUS OF ENCODING/DECODING POINT CLOUD GEOMETRY DATA USING AZIMUTHAL CODING MODE 审中-公开
公开(公告)号：WO2022213571A1
公开(公告)日：2022-10-13
申请号：PCT/CN2021/123664
申请日：2021-10-13
申请人： BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
发明人： GAO, Shuo , LASSERRE, Sebastien
IPC分类号： H04N19/59 , H04N19/96 , H04N19/13
摘要： There is provided methods and apparatus of encoding/decoding a point cloud into/from a bitstream of encoded point cloud data representing a physical object. The methods comprising an azimuthal coding mode providing a series of bits for encoding/decoding a coordinate of a point of the point cloud. The azimuthal coding mode uses angle interpolation to determine the left and rights angles φleft,d and φright,d on the base of offsets and inherited angles associated with a parent interval used to encode a previous bit. The present invention avoids performing systematically an arc tangent function for the angle φleft,d and an arc tangent function for the angle φright,d at each iteration of the azimuthal coding mode. It improves the compression efficiency compared to the usual azimuthal coding mode while maintaining a reasonable complexity. It also provides flexibility in the choice of the angles φleft,d and φright,d·

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