SYSTEMS AND METHODS FOR VOLUMIZING AND ENCODING TWO-DIMENSIONAL IMAGES

    公开(公告)号:WO2023278488A1

    公开(公告)日:2023-01-05

    申请号:PCT/US2022/035373

    申请日:2022-06-28

    摘要: Disclosed herein is a method for volumizing and encoding a plurality of two-dimensional images of a subject. The method may comprise obtaining a plurality of two-dimensional (2D) images of the subject, wherein each 2D image of the plurality of 2D images is captured at a different angle from the subject. The method may further comprise generating at least one volumizing hierarchical grid corresponding to the plurality of 2D images. The method may further comprise generating a 3D representation from the at least one volumizing hierarchical grid. The method may further comprise generating an encoding hierarchical grid corresponding to the 3D representation to form a plurality of image blocks. The method may further comprise individually processing the plurality of image blocks to form a plurality of processed image blocks.

    基于知识图像的视频编码方法、装置及可读存储介质

    公开(公告)号:WO2022247031A1

    公开(公告)日:2022-12-01

    申请号:PCT/CN2021/115032

    申请日:2021-08-27

    摘要: 发明提供了一种基于知识图像的视频编码方法、装置及可读存储介质,所述方法包括:把视频序列包含的所有图像分成若干个图像组;为每个所述图像组寻找一个知识图像,各个所述图像组与各个所述知识图像一一对应,所有知识图像构成一个知识图像序列;对所述知识图像序列进行编码,编码时使所述知识图像序列中的各个知识图像的广义参考图像的数量不大于预设值,所述广义参考图像为所述知识图像序列的知识图像;参考所述知识图像序列中的知识图像对所述知识图像对应的图像组进行编码。本发明提供的基于知识图像的视频编码方法突破了所有知识图像必须采用帧内预测编码的限制,允许知识图像采用任何一种预测编码模式,同时又能照顾到随机访问的需求。

    CONSTRAINTS ON REFERENCE PICTURE INFORMATION

    公开(公告)号:WO2021236895A1

    公开(公告)日:2021-11-25

    申请号:PCT/US2021/033340

    申请日:2021-05-20

    申请人: BYTEDANCE INC.

    IPC分类号: H04N19/142

    摘要: Examples of video encoding methods and apparatus and video decoding methods and apparatus are descrined. An example method of video processing includes performing a conversion between a video comprising a video picture comprising a slice and a bitstream of the video according to a rule. The rule specifies that a default value of a syntax element specifying a number of entries in a reference picture list syntax structure associated with a reference picture list (RPL) index is equal to 0 due to a condition being satisfied. The condition is satisfied in case (1) the video picture is an instantaneous decoding refresh picture, (2) a first syntax flag specifies that RPL syntax elements are not present in a slice header of the slice, and (3) a second syntax flag specifies that RPL information is not present in a picture header of the video picture.

    画像処理装置と画像処理方法
    4.
    发明申请

    公开(公告)号:WO2019093051A1

    公开(公告)日:2019-05-16

    申请号:PCT/JP2018/037725

    申请日:2018-10-10

    摘要: 参照方向判定部44は、入力画像を用いてシーンチェンジやフラッシュシーンあるいは輝度単調変動区間を検出する。参照方向判定部44は、符号化対象画像がシーンチェンジやフラッシュシーンである場合、画面内の参照方向を一律に固定する参照方向固定モードと判定する。また、参照方向判定部44は、符号化対象画像が輝度単調変動区間、すなわち画面全体の輝度が単調増加または単調減少する区間である場合、画面内の参照方向を一律に固定する参照方向固定モードと判定する。動き予測・補償部42は参照方向判定部44の判定結果に応じてインター予測処理を行うことで、画質低下を抑制しつつ、効率よく符号化を行えるようになる。

    ENCODING APPARATUS OF VIDEO AND AUDIO DATA, ENCODING METHOD THEREOF, AND VIDEO EDITING SYSTEM
    5.
    发明申请
    ENCODING APPARATUS OF VIDEO AND AUDIO DATA, ENCODING METHOD THEREOF, AND VIDEO EDITING SYSTEM 审中-公开
    编码视频和音频数据的设备,编码方法和视频编辑系统

    公开(公告)号:WO2010007760A3

    公开(公告)日:2010-05-27

    申请号:PCT/JP2009003294

    申请日:2009-07-14

    CPC分类号: G11B27/034 H04N19/15

    摘要: An encoding apparatus employing both a CPU and a chip or circuit dedicated to the encoding is disclosed. The encoding apparatus includes a hardware encoder 151 and a software encoder 152. The hardware encoder 151 is configured by hardware dedicated to the encoding and encodes a portion of AV data. The software encoder 152 encodes another portion of the AV data in parallel to the encoding process of the hardware encoder 151 by the use of a CPU 10. A position detector 18 detects a switching position of an allocation destination in the AV data. A data allocator 14 allocates sections of the AV data divided by the switching position to both encoders 151 and 152. A synthesizer 16 arranges the encoded AV data in a predetermined sequence to synthesize a series of encoded AV data. An output unit 17 outputs the series of encoded AV data.

    摘要翻译: 公开了一种采用专用于编码的CPU和芯片或电路的编码装置。 编码装置包括硬件编码器151和软件编码器152.硬件编码器151由专用于对AV数据的一部分进行编码和编码的硬件配置。 软件编码器152通过使用CPU10与硬件编码器151的编码处理并行地编码AV数据的另一部分。位置检测器18检测AV数据中的分配目的地的切换位置。 数据分配器14将由切换位置划分的AV数据的部分分配给两个编码器151和152.合成器16以预定的顺序排列编码的AV数据,以合成一系列编码的AV数据。 输出单元17输出一系列经编码的AV数据。

    SYSTEMS AND METHODS FOR SELECTING EFFICIENT ENCODERS FOR STREAMING MEDIA

    公开(公告)号:WO2022265819A1

    公开(公告)日:2022-12-22

    申请号:PCT/US2022/030421

    申请日:2022-05-21

    摘要: A computer-implemented method for selecting efficient encoders for streaming media may include (i) predicting that an expected download demand for a higher-demand segment of a media file is higher than an expected download demand for a lower-demand segment, (ii) encoding each segment of the media file with an encoder that correlates to the expected download demand of the segment by (a) encoding the higher-demand segment with a more computationally intensive encoder that produces a more efficiently compressed segment compared to a less computationally intensive encoder that produces a less efficiently compressed segment and (b) encoding the lower-demand segment with the less computationally intensive encoder, and (iii) enabling streaming of the media file by providing the more efficiently compressed encoding of the higher-demand segment and the less efficiently compressed encoding of the lower-demand segment. Various other methods, systems, and computer-readable media are also disclosed.

    视频自动运动补偿方法、装置、设备及存储介质

    公开(公告)号:WO2022143078A1

    公开(公告)日:2022-07-07

    申请号:PCT/CN2021/136774

    申请日:2021-12-09

    发明人: 郑蒙帅 田超

    IPC分类号: H04N19/142

    摘要: 本申请公开一种视频自动运动补偿方法、装置、设备及存储介质,方法包括:当视频播放设备播放的视频的帧率大于第一设定阈值时,则基于视频的每个基群内相邻两帧之间的帧间相关度,判断相邻两帧是否出现场景变换;当相邻两帧出现场景变换时,获取相邻帧之间的帧间运动速度;基于帧间运动速度和帧间相关度对视频进行运动补偿。