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    DEVICE AND METHOD FOR CODING MOVING IMAGE
    131.
    发明申请
    DEVICE AND METHOD FOR CODING MOVING IMAGE 审中-公开
    编码移动图像的装置和方法

    公开(公告)号：WO1996033573A1

    公开(公告)日：1996-10-24

    申请号：PCT/JP1996001074

    申请日：1996-04-19

    Applicant: SONY CORPORATION ,  UEHARA, Kenji

    Inventor： SONY CORPORATION

    IPC: H04N07/24

    CPC classification number: H04N19/577 ,  H04N19/61

    Abstract: The period M of the pictures whose picture coding type is I or P during video input changes from 2 to 3 and vice versa. The CUR_M represents the present M number and the maximum M number MAX_M in a sequence is 3. A MAX_M frame delay is given to the pictures (1B, 2B, and so on) whose picture coding type is B and a MAX_M-CUR_M frame delay is given to the pictures (1I, 2I, and so on) whose picture coding type is I. Thus, a bit stream is formed by generating a coding order sequence and performing predictive coding.

    Abstract translation: 视频输入中图像编码类型为I或P的图像的周期M从2变为3，反之亦然。 CUR_M表示当前的M数，序列中的最大M数MAX_M为3.对图像编码类型为B的图像（1B，2B等）和MAX_M-CUR_M帧延迟的图像（1B，2B等）给出MAX_M帧延迟 被给予其图像编码类型为I的图像（1I，2I等）。因此，通过产生编码顺序序列并执行预测编码来形成位流。

    METHOD AND DEVICE FOR TRANSMITTING COMPRESSED PICTURE DATA
    132.
    发明申请
    METHOD AND DEVICE FOR TRANSMITTING COMPRESSED PICTURE DATA 审中-公开
    用于传输压缩图像数据的方法和装置

    公开(公告)号：WO1996007273A1

    公开(公告)日：1996-03-07

    申请号：PCT/JP1995001698

    申请日：1995-08-25

    Applicant: SONY CORPORATION ,  KOTANI, Hiroki

    Inventor： SONY CORPORATION

    IPC: H04N07/30

    CPC classification number: H04N21/23424 ,  H04N5/9261 ,  H04N7/54 ,  H04N19/172 ,  H04N19/30 ,  H04N19/46 ,  H04N19/577 ,  H04N19/61 ,  H04N19/89

    Abstract: In a data transmitting method, compressed picture data required for decoding each frame are transmitted in each frame as shown in the figure as a data train at the time of transmitting picture data compressed by using frame correlation, or compressed picture data as the sum of sets of compressed picture data contained in each frame are transmitted by copying the data at every frame as shown in figure 3D. Therefore, the deterioration of the picture quality of the compressed picture data can be prevented at the time of transmitting the data by switching the data at every frame.

    Abstract translation: 在数据发送方法中，在发送利用帧相关压缩的图像数据时，如图所示，在每帧中发送用于解码每帧的压缩图像数据作为数据序列，或者压缩图像数据作为集合的总和 如图3D所示，通过在每一帧复制数据来发送包含在每个帧中的压缩图像数据。 因此，通过在每帧切换数据来发送数据时，可以防止压缩图像数据的图像质量的劣化。

    CODING IMAGE DATA
    135.
    发明申请
    CODING IMAGE DATA 审中-公开
    编码图像数据

    公开(公告)号：WO1995004432A1

    公开(公告)日：1995-02-09

    申请号：PCT/GB1994001651

    申请日：1994-07-29

    Applicant: BRITISH TELECOMMUNICATIONS PLC ,  PARKE, Ian

    Inventor： BRITISH TELECOMMUNICATIONS PLC

    IPC: H04N07/32

    CPC classification number: H04N19/577 ,  H04N19/433 ,  H04N19/51 ,  H04N19/61

    Abstract: A system for encoding video frames in accordance with the MPEG standard, in real-time. Motion vectors are calculated during the forward prediction of B frames and P frames using a telescoping procedure. Similarly, a telescoping procedure is used for calculating motion vectors for B frames during backwards predictive coding. The use of telescoping for the backward predictive coding results in B frames being coded in the wrong order. The correct order for B frames is re-established by writing the frames to a buffer (97) in the order in which they are generated and then reading the frame data from the buffer in the order in which they are required for transmission or recording purposes. The use of the telescoping procedure reduces significantly the amounts of computation required for calculating motion vectors during predictive coding for frames which are displaced by more than one frame period. The use of a buffer to reorganise the frames does not add significantly to the overall hardware requirement because such a buffer would often be used for smoothing out irregular data rates.

    Abstract translation: 一种用于根据MPEG标准实时编码视频帧的系统。 在使用伸缩程序的B帧和P帧的前向预测期间计算运动矢量。 类似地，在向后预测编码期间，使用伸缩程序来计算B帧的运动矢量。 对于反向预测编码，使用伸缩来导致B帧以错误的顺序编码。 通过将帧按照它们生成的顺序写入缓冲器（97），然后按照传输或记录目的的顺序从缓冲器读取帧数据来重新建立B帧的正确顺序 。 使用伸缩程序显着减少了在对多于一帧周期移位的帧的预测编码期间计算运动矢量所需的计算量。 使用缓冲区重新组织帧并不会显着增加总体硬件要求，因为这种缓冲区通常用于平滑不规则的数据速率。

    GENERALIZED BI-PREDICTION FOR VIDEO CODING WITH REDUCED CODING COMPLEXITY
    138.
    发明申请
    GENERALIZED BI-PREDICTION FOR VIDEO CODING WITH REDUCED CODING COMPLEXITY 审中-公开

    公开(公告)号：WO2019147628A1

    公开(公告)日：2019-08-01

    申请号：PCT/US2019/014691

    申请日：2019-01-23

    Applicant: VID SCALE, INC.

    Inventor： ZHANG, Yan ,  XIU, Xiaoyu ,  HE, Yuwen ,  YE, Yan

    IPC: H04N19/577 ,  H04N19/31 ,  H04N19/573

    CPC classification number: H04N19/577 ,  H04N19/31 ,  H04N19/573

    Abstract: Exemplary embodiments include systems and methods for coding a video comprising a plurality of pictures including a current picture, a first reference picture, and a second reference picture, where each picture includes a plurality of blocks. In one method, for at least a current block in the current picture, a number of available bi-prediction weights is determined based at least in part on a temporal layer and/or a quantization parameter of the current picture. From among available bi-prediction weights a pair of weights are identified. Using the identified weights, the current block is then predicted as a weighted sum of a first reference block in the first reference picture and a second reference block in the second reference picture. Encoding techniques are also described for efficient searching and selection of a pair of bi-prediction weights to use for prediction of a block.

    MOTION COMPENSATED BI-PREDICTION BASED ON LOCAL ILLUMINATION COMPENSATION
    139.
    发明申请
    MOTION COMPENSATED BI-PREDICTION BASED ON LOCAL ILLUMINATION COMPENSATION 审中-公开

    公开(公告)号：WO2019143602A1

    公开(公告)日：2019-07-25

    申请号：PCT/US2019/013623

    申请日：2019-01-15

    Applicant: VID SCALE, INC.

    Inventor： XIU, Xiaoyu ,  HE, Yuwen ,  YE, Yan ,  BANDYOPADHYAY, Saurav

    IPC: H04N19/105 ,  H04N19/176 ,  H04N19/137 ,  H04N19/583 ,  H04N19/577

    CPC classification number: H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/577 ,  H04N19/583

    Abstract: Systems, methods, and Instrumentalities are described herein for calculating local Illumination compensation (LIC) parameters for bi-predicted coding unit (CU). The LIC parameters may be used to generate adjusted samples for the current CU and to address local illumination changes that may exist among temporal neighboring pictures. LIC parameters may be calculated based on bi-predicted reference template samples and template samples for a current CU. Bi-predicted reference template samples may be generated based on reference template samples neighboring temporal reference CUs. For example, the bi-predicted reference template samples may be generated based on averaging the reference template samples. The reference template samples may correspond to template samples for the current CU. A CU may be or may include a coding block and/or a sub-block that may be derived by dividing the coding block.

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