Video coding
    1.
    发明授权
    Video coding 有权
    视频编码

    公开(公告)号:US08804836B2

    公开(公告)日:2014-08-12

    申请号:US13274739

    申请日:2011-10-17

    摘要: A method comprising: for each target image portion to be encoded in a frame, selecting one of a set of encoding modes by optimizing a function comprising an estimate of distortion for the target image portion and a measure of bit rate required to encode the target image portion, encoding the target image portion into the encoded video stream using the selected mode. The encoded video stream is transmitted over a lossy channel. An error propagation distortion map is maintained, which comprises a plurality of error propagation distortion values mapping to respective frame partitions, the error propagation distortion values being based on previous encoding mode selections. The estimate of distortion used to select the encoding mode for each of the target image portions is based on a corresponding portion from the error propagation distortion map, and that corresponding portion is constrained to being co-located with the target image portion.

    摘要翻译: 一种方法,包括:对于要在帧中编码的每个目标图像部分,通过优化包括所述目标图像部分的失真估计的函数和对所述目标图像进行编码所需的比特率的度量来选择一组编码模式中的一个 部分,使用所选择的模式将目标图像部分编码成编码视频流。 编码的视频流通过有损的信道传输。 维持误差传播失真图,其包括映射到各个帧分区的多个误差传播失真值,误差传播失真值基于先前的编码模式选择。 用于选择每个目标图像部分的编码模式的失真的估计基于来自误差传播失真图的对应部分,并且该对应部分被约束为与目标图像部分共处。

    Motion picture encoding device and motion picture encoding processing program
    2.
    发明申请
    Motion picture encoding device and motion picture encoding processing program 有权
    运动图像编码装置和运动图像编码处理程序

    公开(公告)号:US20070019729A1

    公开(公告)日:2007-01-25

    申请号:US11504021

    申请日:2006-08-14

    IPC分类号: H04N11/04 H04B1/66

    摘要: The minimum Sum of Absolute Differences obtained by a motion vector search roughly judges the magnitude of quantization error by whether or not exceeding a predetermined threshold value. When the quantization error is lower, whether or not visually noticeable noise exists in some of the pixels of the current macroblock is judged based on the amount of flatness and noise detected in each of the 4x4 pixel blocks of the current macroblock partitioned into 16 sub-macroblocks. If there is visually noticeable noise, intra-frame coding is selected. When the quantization error is higher, whether or not visually noticeable noise exists in the current macroblock is judged while considering the magnitude of the motion vector. If there is visually noticeable noise, intra-frame coding is selected.

    摘要翻译: 通过运动矢量搜索获得的最小绝对差值之和粗略地判断量化误差的大小是否超过预定阈值。 当量化误差较低时,根据分割为16个子像素的当前宏块的4×4个像素块中的每一个中检测到的平坦度和噪声量来判断存在当前宏块的一些像素中是否存在视觉上可见的噪声, 宏块。 如果存在视觉上明显的噪点,则选择帧内编码。 当量化误差较高时,在考虑运动矢量的大小的同时判断在当前宏块中是否存在视觉上可察觉的噪声。 如果存在视觉上明显的噪点,则选择帧内编码。

    METHOD AND APPARATUS FOR IMAGE ENCODING METHOD AND APPARTUS FOR IMAGE DECODING AND RECORDING MEDIUM
    3.
    发明申请
    METHOD AND APPARATUS FOR IMAGE ENCODING METHOD AND APPARTUS FOR IMAGE DECODING AND RECORDING MEDIUM 无效
    图像编码方法和装置用于图像解码和记录介质的方法和装置

    公开(公告)号:US20010043653A1

    公开(公告)日:2001-11-22

    申请号:US09048134

    申请日:1998-03-25

    发明人: KAZUHUSA HOSAKA

    摘要: The present invention relates to a technique of encoding each data unit (for example, a block data) of an image and simultaneously, its relevant information indicative of a coding mode of the data unit. In particular, each data unit of the image is encoded in accordance with either the information indicative of a coding mode of each of data units which are highly correlated in space or time to the data unit to be encoded or pixels in decoded data units. Accordingly, the encoding of the image will be executed at higher efficiency.

    摘要翻译: 本发明涉及对图像的每个数据单元(例如,块数据)进行编码的技术,同时涉及表示数据单元的编码模式的相关信息。 特别地,图像的每个数据单元根据指示在要编码的数据单元或解码数据单元中的空间或时间高度相关的每个数据单元的编码模式的信息被编码。 因此,以更高的效率执行图像的编码。

    Video Coding
    4.
    发明申请
    Video Coding 有权
    视频编码

    公开(公告)号:US20130044804A1

    公开(公告)日:2013-02-21

    申请号:US13274739

    申请日:2011-10-17

    IPC分类号: H04N7/26

    摘要: A method comprising: for each target image portion to be encoded in a frame, selecting one of a set of encoding modes by optimizing a function comprising an estimate of distortion for the target image portion and a measure of bit rate required to encode the target image portion, encoding the target image portion into the encoded video stream using the selected mode. The encoded video stream is transmitted over a lossy channel. An error propagation distortion map is maintained, which comprises a plurality of error propagation distortion values mapping to respective frame partitions, the error propagation distortion values being based on previous encoding mode selections. The estimate of distortion used to select the encoding mode for each of the target image portions is based on a corresponding portion from the error propagation distortion map, and that corresponding portion is constrained to being co-located with the target image portion.

    摘要翻译: 一种方法,包括:对于要在帧中编码的每个目标图像部分,通过优化包括所述目标图像部分的失真估计的函数和对所述目标图像进行编码所需的比特率的度量来选择一组编码模式中的一个 部分,使用所选择的模式将目标图像部分编码成编码视频流。 编码的视频流通过有损的信道传输。 维持误差传播失真图,其包括映射到各个帧分区的多个误差传播失真值,误差传播失真值基于先前的编码模式选择。 用于选择每个目标图像部分的编码模式的失真的估计基于来自误差传播失真图的对应部分,并且该对应部分被约束为与目标图像部分共处。

    REFRESH METHOD AND APPARATUS
    5.
    发明申请
    REFRESH METHOD AND APPARATUS 有权
    刷新方法和装置

    公开(公告)号:US20090304077A1

    公开(公告)日:2009-12-10

    申请号:US12415478

    申请日:2009-03-31

    IPC分类号: H04N7/32 H04N7/26

    摘要: Apparatuses and methods for improving coding processes and coding parameters for coding video data are provided for. A coder may select coding parameters for video data according to a default coding policy. The default coding policy may include selection of prediction modes (e.g., intra-coding or inter-coding) for each pixel group in each frame. A video coder may select some pixel groups in a frame to be coded as refresh pixel groups as an exception to the default assignment policies. The selection of refresh pixel groups may be based on prediction relationships among multiple frames of source video data. The default coding of the refresh pixel groups is then modified to enhanced the coding of the refresh pixel groups. The refresh pixel groups may permit fewer intra (I) frames be sent and/or may improve the quality of the recovered video.

    摘要翻译: 提供了用于改进用于编码视频数据的编码处理和编码参数的装置和方法。 编码器可以根据默认编码策略选择视频数据的编码参数。 默认编码策略可以包括对每个帧中的每个像素组的预测模式(例如,帧内编码或帧间编码)的选择。 视频编码器可以将要编码的帧中的一些像素组选择为刷新像素组,作为默认分配策略的例外。 刷新像素组的选择可以基于源视频数据的多个帧之间的预测关系。 然后修改刷新像素组的默认编码以增强刷新像素组的编码。 刷新像素组可以允许更少的帧内(I)帧被发送和/或可以提高恢复的视频的质量。

    Motion picture encoding device and motion picture encoding processing program
    6.
    发明授权
    Motion picture encoding device and motion picture encoding processing program 有权
    运动图像编码装置和运动图像编码处理程序

    公开(公告)号:US08824552B2

    公开(公告)日:2014-09-02

    申请号:US13351711

    申请日:2012-01-17

    摘要: The minimum Sum of Absolute Differences obtained by a motion vector search roughly judges the magnitude of quantization error by whether or not exceeding a predetermined threshold value. When the quantization error is lower, whether or not visually noticeable noise exists in some of the pixels of the current macroblock is judged based on the amount of flatness and noise detected in each of the 4×4 pixel blocks of the current macroblock partitioned into 16 sub-macroblocks. If there is visually noticeable noise, intra-frame coding is selected. When the quantization error is higher, whether or not visually noticeable noise exists in the current macroblock is judged while considering the magnitude of the motion vector. If there is visually noticeable noise, intra-frame coding is selected.

    摘要翻译: 通过运动矢量搜索获得的最小绝对差值之和粗略地判断量化误差的大小是否超过预定阈值。 当量化误差较小时,根据当前宏分区的4×4像素块中的每一个中的平坦度和噪声量,判断当前宏块的某些像素是否存在视觉上可察觉的噪声 子宏块。 如果存在视觉上明显的噪点,则选择帧内编码。 当量化误差较高时,在考虑运动矢量的大小的同时判断在当前宏块中是否存在视觉上可察觉的噪声。 如果存在视觉上明显的噪点,则选择帧内编码。

    MOTION PICTURE ENCODING DEVICE AND MOTION PICTURE ENCODING PROCESSING PROGRAM
    7.
    发明申请
    MOTION PICTURE ENCODING DEVICE AND MOTION PICTURE ENCODING PROCESSING PROGRAM 有权
    运动图像编码设备和运动图像编码处理程序

    公开(公告)号:US20120114035A1

    公开(公告)日:2012-05-10

    申请号:US13351711

    申请日:2012-01-17

    IPC分类号: H04N7/36

    摘要: The minimum Sum of Absolute Differences obtained by a motion vector search roughly judges the magnitude of quantization error by whether or not exceeding a predetermined threshold value. When the quantization error is lower, whether or not visually noticeable noise exists in some of the pixels of the current macroblock is judged based on the amount of flatness and noise detected in each of the 4×4 pixel blocks of the current macroblock partitioned into 16 sub-macroblocks. If there is visually noticeable noise, intra-frame coding is selected. When the quantization error is higher, whether or not visually noticeable noise exists in the current macroblock is judged while considering the magnitude of the motion vector. If there is visually noticeable noise, intra-frame coding is selected.

    摘要翻译: 通过运动矢量搜索获得的最小绝对差值之和粗略地判断量化误差的大小是否超过预定阈值。 当量化误差较小时,根据当前宏分区的4×4像素块中的每一个中的平坦度和噪声量,判断当前宏块的某些像素是否存在视觉上可察觉的噪声 子宏块。 如果存在视觉上明显的噪点,则选择帧内编码。 当量化误差较高时,在考虑运动矢量的大小的同时判断在当前宏块中是否存在视觉上可察觉的噪声。 如果存在视觉上明显的噪点,则选择帧内编码。

    Refresh pixel group selection and coding adjustment
    8.
    发明授权
    Refresh pixel group selection and coding adjustment 有权
    刷新像素组选择和编码调整

    公开(公告)号:US08780986B2

    公开(公告)日:2014-07-15

    申请号:US12415478

    申请日:2009-03-31

    摘要: Apparatuses and methods for improving coding processes and coding parameters for coding video data are provided for. A coder may select coding parameters for video data according to a default coding policy. The default coding policy may include selection of prediction modes (e.g., intra-coding or inter-coding) for each pixel group in each frame. A video coder may select some pixel groups in a frame to be coded as refresh pixel groups as an exception to the default assignment policies. The selection of refresh pixel groups may be based on prediction relationships among multiple frames of source video data. The default coding of the refresh pixel groups is then modified to enhanced the coding of the refresh pixel groups. The refresh pixel groups may permit fewer intra (I) frames be sent and/or may improve the quality of the recovered video.

    摘要翻译: 提供了用于改进用于编码视频数据的编码处理和编码参数的装置和方法。 编码器可以根据默认编码策略选择视频数据的编码参数。 默认编码策略可以包括对每个帧中的每个像素组的预测模式(例如,帧内编码或帧间编码)的选择。 视频编码器可以将要编码的帧中的一些像素组选择为刷新像素组,作为默认分配策略的例外。 刷新像素组的选择可以基于源视频数据的多个帧之间的预测关系。 然后修改刷新像素组的默认编码以增强刷新像素组的编码。 刷新像素组可以允许更少的帧内(I)帧被发送和/或可以提高恢复的视频的质量。

    Unified Partitioning Structures and Signaling Methods for High Efficiency Video Coding
    9.
    发明申请
    Unified Partitioning Structures and Signaling Methods for High Efficiency Video Coding 审中-公开
    高效率视频编码的统一分区结构和信令方法

    公开(公告)号:US20130136180A1

    公开(公告)日:2013-05-30

    申请号:US13689221

    申请日:2012-11-29

    IPC分类号: H04N7/50 H04N7/30

    摘要: A method for video coding comprising signaling a prediction mode and a partition mode for a coding unit via a string of bits, wherein one of the bits in the string indicates whether or not the partition size for the coding unit is equivalent to the entire coding unit and another of the bits in the string indicates whether the coding unit partitions are horizontal strips or vertical strips, and wherein, when a slice type of the coding unit is either predictive or bi-predictive, one of the bits in the string indicates whether the prediction type is intra or inter.

    摘要翻译: 一种用于视频编码的方法,包括通过一串比特信号通知编码单元的预测模式和分区模式,其中串中的一个比特指示编码单元的分区大小是否等于整个编码单元 并且字符串中的另一个位表示编码单元分区是水平条还是垂直条,并且其中当编码单元的片类型是预测或双向预测时,字符串中的一个位指示是否 预测类型是帧内或帧间。

    Motion picture encoding device and motion picture encoding processing program
    10.
    发明授权
    Motion picture encoding device and motion picture encoding processing program 有权
    运动图像编码装置和运动图像编码处理程序

    公开(公告)号:US08121193B2

    公开(公告)日:2012-02-21

    申请号:US11504021

    申请日:2006-08-14

    IPC分类号: H04N11/04

    摘要: The minimum Sum of Absolute Differences obtained by a motion vector search roughly judges the magnitude of quantization error by whether or not exceeding a predetermined threshold value. When the quantization error is lower, whether or not visually noticeable noise exists in some of the pixels of the current macroblock is judged based on the amount of flatness and noise detected in each of the 4x4 pixel blocks of the current macroblock partitioned into 16 sub-macroblocks. If there is visually noticeable noise, intra-frame coding is selected. When the quantization error is higher, whether or not visually noticeable noise exists in the current macroblock is judged while considering the magnitude of the motion vector. If there is visually noticeable noise, intra-frame coding is selected.

    摘要翻译: 通过运动矢量搜索获得的最小绝对差值之和粗略地判断量化误差的大小是否超过预定阈值。 当量化误差较低时,根据分割为16个子像素的当前宏块的4×4个像素块中的每一个中检测到的平坦度和噪声量来判断存在当前宏块的一些像素中是否存在视觉上可见的噪声, 宏块。 如果存在视觉上明显的噪点,则选择帧内编码。 当量化误差较高时,在考虑运动矢量的大小的同时判断在当前宏块中是否存在视觉上可察觉的噪声。 如果存在视觉上明显的噪点,则选择帧内编码。