情報処理装置および方法
    1.
    发明申请

    公开(公告)号:WO2023286317A1

    公开(公告)日:2023-01-19

    申请号:PCT/JP2022/007466

    申请日:2022-02-24

    摘要: 本開示は、誤り隠蔽による主観画質の低減を抑制することができるようにする情報処理装置および方法に関する。 画素アレイの各画素において入射光を検出するセンサから出力されたRAW画像が所定のパラメータによって再構成された再構成画像に対応するそのパラメータの値を識別するための再構成情報を生成し、その生成された再構成情報を送信する。また、その再構成情報を受信し、その受信された再構成情報に基づいて、再構成画像の伝送エラーを隠蔽する。本開示は、例えば、情報処理装置、符号化装置、復号装置、電子機器、情報処理方法、またはプログラム等に適用することができる。

    COMBINED FORWARD AND BACKWARD EXTRAPOLATION OF LOST NETWORK DATA

    公开(公告)号:WO2020131594A1

    公开(公告)日:2020-06-25

    申请号:PCT/US2019/066113

    申请日:2019-12-13

    IPC分类号: H04N19/895 G10L19/005

    摘要: Techniques are described for performing forward and backward extrapolation of data to compensate for data that has been lost due to network packet loss. The forward and backward extrapolation can be used to perform packet loss concealment. For example, when network packet loss is detected, network packets before and after the lost data can be identified. Forward and backward extrapolation can then be applied to cover the period of lost data. For example, the network packets before the period of lost data can be used to perform forward extrapolation to cover a first portion of the period of lost data. The network packets after the period of lost data can be used to perform backward extrapolation to cover a remaining portion of the period of lost data. The period of lost data can be reconstructed based at least in part on the extrapolation.

    KEYFRAME MITIGATION FOR VIDEO STREAMS WITH MULTIPLE RECEIVERS

    公开(公告)号:WO2018093814A1

    公开(公告)日:2018-05-24

    申请号:PCT/US2017/061673

    申请日:2017-11-15

    摘要: In one embodiment, a video encoder generates an encoded bitstream representing a sequence of video frames including a keyframe. The encoder generates information for use by a decoder that receives the encoded bitstream to enable the decoder to generate display frames from a pre-keyframe video frame that is prior to the keyframe in the sequence of video frames. The encoded bitstream is sent to the decoder. In another embodiment, a video decoder receives from an encoder an encoded bitstream representing a sequence of video frames including a keyframe. The keyframe includes information to enable the decoder to generate display frames from a pre-keyframe video frame that was received prior to the keyframe in the sequence of video frames. The decoder generates display frames using the pre-keyframe video frame, information included with the keyframe and information included with an encoder-determined number of decoded frames subsequent to the keyframe.

    一种错误隐藏的方法和装置
    4.
    发明申请

    公开(公告)号:WO2016131270A1

    公开(公告)日:2016-08-25

    申请号:PCT/CN2015/090813

    申请日:2015-09-25

    发明人: 曾幸 王宁

    IPC分类号: H04N19/895

    CPC分类号: H04N19/895

    摘要: 一种错误隐藏的方法,所述方法包括:将当前错误编码树单元CTU中的每个错误块依次作为当前错误块;确定当前错误块的空域左相邻块和空域上相邻块,空域左相邻块和空域上相邻块与错误块在空域上相邻;当所述当前错误块的空域左相邻块和空域上相邻块都可用且都不为帧内预测块时,进行时域和空域相关性比较;如果当前错误块的空域相关性大于预设强度阈值时,则进行空域插值错误隐藏;如果当前错误块的空域相关性不大于预设强度阈值时,则进行时域错误隐藏。上述方案结合HEVC视频的编码特性,利用错误块数据与空域时域相邻数据的相关性修复受损图像,对受损的HEVC视频码流有良好的修复效果。

    DECODING AND SYNTHESIZING FRAMES FOR INCOMPLETE VIDEO DATA
    5.
    发明申请
    DECODING AND SYNTHESIZING FRAMES FOR INCOMPLETE VIDEO DATA 审中-公开
    解码和合成不完整视频数据的框架

    公开(公告)号:WO2015153237A1

    公开(公告)日:2015-10-08

    申请号:PCT/US2015/022599

    申请日:2015-03-26

    发明人: CALLAHAN, Sean

    摘要: Embodiments are directed to decoding incomplete video data. In one scenario, a computer system receives a piece of a frame (e.g. a video frame). The frame includes multiple frame pieces, where each frame piece is encoded so as to be individually decodable. The computer system decodes the received frame pieces while waiting for at least one additional frame piece to be received. Then, when a condition occurs indicating that the frame is incomplete, the computer system synthesizes frame pieces to replace the additional frame piece that has not yet been received.

    摘要翻译: 实施例涉及解码不完整的视频数据。 在一种情况下,计算机系统接收一帧(例如视频帧)。 该帧包括多个帧片段,其中每个帧片段被编码以便可单独地解码。 计算机系统在等待要接收的至少一个附加帧片段的同时解码所接收的帧片段。 然后,当指示帧不完整的条件发生时,计算机系统合成框架件以替换尚未被接收的附加帧片段。

    VIDEO DECODER ERROR HANDLING
    6.
    发明申请
    VIDEO DECODER ERROR HANDLING 审中-公开
    视频解码器错误处理

    公开(公告)号:WO2009108614A1

    公开(公告)日:2009-09-03

    申请号:PCT/US2009034948

    申请日:2009-02-24

    摘要: A video decoder performs a sequential error handling process to detect and conceal errors within a corrupted data segment of video data units. The decoder sequentially decodes a current data unit. Upon detecting an error, the decoder sets an error flag and resynchronizes decoding at the start of the next unit. If the error flag is set, the video decoder identifies the end of the corrupted data segment based on the start of the later unit. The decoder conceals data between the start of the current unit and the end of the corrupted data segment. If the error flag is not set, the decoder may decode the remainder of the current unit and proceed to decode the next available unit without performing error handling and concealment for the current unit. The decoder also may address reference unit mismatches caused by lost video data units.

    摘要翻译: 视频解码器执行顺序错误处理过程以检测和隐藏视频数据单元的损坏的数据段内的错误。 解码器对当前数据单元进行顺序解码。 在检测到错误时,解码器设置错误标志并在下一个单元的开始重新同步解码。 如果错误标志被设置,则视频解码器基于稍后单元的开始来识别损坏的数据段的结束。 解码器隐藏当前单元的开始和损坏的数据段的结束之间的数据。 如果错误标志未设置,则解码器可以对当前单元的剩余部分进行解码,并且继续对下一个可用单元进行解码,而不对当前单元执行错误处理和隐藏。 解码器还可以解决由丢失的视频数据单元引起的参考单元不匹配。

    SYSTEM AND METHOD FOR ERROR CONCEALMENT
    7.
    发明申请
    SYSTEM AND METHOD FOR ERROR CONCEALMENT 审中-公开
    错误隐藏的系统和方法

    公开(公告)号:WO2009047697A2

    公开(公告)日:2009-04-16

    申请号:PCT/IB2008054088

    申请日:2008-10-06

    IPC分类号: H04N19/895

    摘要: A method and a system conceal errors in video data transmission. An encoded current bitstream is received from a demodulator at a first decoder, which decodes the current bitstream. An encoded previous bit stream is received from a memoryat a second decoder, which decodes the previous bitstream. When it is determined that the current bitstream does not include an error, the decoded current bitstream output from the first decoder is selected, and when it is determined that the current bitstream does include an error, the decoded previous bitstream output from the second decoder is selected. The second decoder may operate in parallel with the first decoder.

    摘要翻译: 一种方法和系统隐藏视频数据传输中的错误。 在第一解码器处从解调器接收编码的当前比特流,其解码当前比特流。 从第二解码器的存储器接收编码的先前比特流,第二解码器对先前的比特流进行解码。 当确定当前比特流不包括错误时,选择从第一解码器输出的解码的当前比特流,并且当确定当前比特流确实包括错误时,从第二解码器输出的解码的先前比特流是 选择。 第二解码器可以与第一解码器并行操作。

    METHOD AND APPARATUS TO FACILITATE CREATING ANCILLARY INFORMATION REGARDING ERRORED IMAGE CONTENT
    8.
    发明申请
    METHOD AND APPARATUS TO FACILITATE CREATING ANCILLARY INFORMATION REGARDING ERRORED IMAGE CONTENT 审中-公开
    拟订关于错误图像内容的附加信息的方法和装置

    公开(公告)号:WO2009006215A3

    公开(公告)日:2009-03-12

    申请号:PCT/US2008068375

    申请日:2008-06-26

    IPC分类号: H04N19/895

    CPC分类号: H04N19/895 H04N21/4425

    摘要: Pixels in a provided image for which the content has been provided (301) in error are identified (302). This image content is processed (303) to provide a version of the image wherein the error is at least partially concealed while also creating (304) ancillary information regarding the errored pixel(s) and the spatial location to which such pixel(s) corresponds to thereby provide a record that describes which pixels in the image content were provided in error. An optional user-selectable option (305) can permit displaying either of the aforementioned corrected version of the image wherein the error is at least partially concealed and a version of the image wherein the ancillary information is used to depict the errored pixel(s) such that provided-in-error pixels are readily distinguished from correctly-provided pixels.

    摘要翻译: 识别提供了内容的提供图像(301)中的错误的像素(302)。 该图像内容被处理(303)以提供图像的版本,其中错误至少部分被隐藏,同时还创建(304)关于错误像素的辅助信息以及这样的像素对应的空间位置 从而提供描述图像内容中的哪些像素被错误地提供的记录。 可选择的用户可选择选项(305)可以允许显示所述图像的至少部分隐藏的所述图像的修正版本,以及所述图像的版本,其中所述辅助信息用于描绘所述错误像素 错误提供的像素容易与正确提供的像素区分开来。

    METHOD AND APPARATUS FOR VIDEO ERROR CONCEALMENT IN MULTI-VIEW CODED VIDEO USING HIGH LEVEL SYNTAX
    9.
    发明申请
    METHOD AND APPARATUS FOR VIDEO ERROR CONCEALMENT IN MULTI-VIEW CODED VIDEO USING HIGH LEVEL SYNTAX 审中-公开
    使用高级语言的多视图编码视频中的视频错误隐藏的方法和装置

    公开(公告)号:WO2008085887A2

    公开(公告)日:2008-07-17

    申请号:PCT/US2008/000115

    申请日:2008-01-04

    IPC分类号: H04N19/89 H04N19/895

    摘要: There are provided a method and apparatus for video error concealment in multi-view coded video using high level syntax. The apparatus includes a decoder (100) for decoding pictures for at least one view corresponding to multi-view video content from a bitstream. The pictures are representative of at least a portion of a video sequence. At least some of the pictures correspond to different time instances in the video sequence. The decoder (100) determines whether any of the pictures corresponding to a particular one of the different time instances are lost using an existing syntax element. The existing syntax element is for indicating a number of coded views in the bitstream, including the at least one view (315, 345).

    摘要翻译: 提供了使用高级语法的多视图编码视频中的视频错误隐藏的方法和装置。 该装置包括一个解码器(100),用于解码来自比特流的与多视点视频内容对应的至少一个视图的图像。 这些图片代表视频序列的至少一部分。 至少一些图片对应于视频序列中的不同时间实例。 解码器(100)使用现有语法元素确定与不同时间实例中的特定一个对应的图像中的任何图像是否丢失。 现有的语法元素用于指示比特流中的多个编码视图,包括至少一个视图(315,345)。