公开(公告)号：US10021413B2

公开(公告)日：2018-07-10

申请号：US15388831

申请日：2016-12-22

Applicant: ATI Technologies ULC

Inventor： Sahar Alipour Kashi ,  Boris Ivanovic ,  Allen J. Porter

IPC: H04N19/105 ,  H04N19/513 ,  H04N19/52 ,  H04N19/117 ,  H04N19/423 ,  H04N19/172 ,  H04N19/176

CPC classification number: H04N19/521 ,  H04N19/105 ,  H04N19/117 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/52

Abstract: Methods and apparatus for facilitating processing a reference frame to produce an output frame. Motion vector data for a block of reference frame pels estimates the displacement of the reference frame pels from corresponding pels in a prior input frame. Comparison metrics are produced for a pel of the reference frame with respect to that pel and a plurality of neighboring reference frame pels. A first comparison metric is based on a comparison with corresponding pels of a prior output frame that corresponds to the prior input frame as previously processed. A second comparison metric is based on a comparison with corresponding pels of a motion compensated prior output frame derived from applying motion vector data to the pels of the prior output frame. A pel of the output frame that corresponds to the reference frame pel is determined using the first and second comparison metrics.

公开(公告)号：US09344671B2

公开(公告)日：2016-05-17

申请号：US13644676

申请日：2012-10-04

Applicant: ATI Technologies, ULC

Inventor： Boris Ivanovic ,  Allen J. Porter ,  Yubao Zheng

IPC: H04N7/01

CPC classification number: H04N7/0117

Abstract: A method and apparatus provide for improving signal quality. The method includes receiving a first media signal, such as a video signal, in a first format, such as 1080p. The provided video signal is one that is created by upsampling a video signal recorded in a format having a lower sampling rate. The method also includes obtaining a second signal indicative of error within the first media signal. The second signal is in a second format, such as the format having a lower sampling rage in which the video signal was recorded. The signal is processed to place the second signal in the format of the first signal. Then, the estimated error signal is combined with the original signal to arrive at an error corrected output.

Abstract translation: 一种提高信号质量的方法和装置。 该方法包括以诸如1080p的第一格式接收诸如视频信号的第一媒体信号。 提供的视频信号是通过以采样率较低的格式记录的视频信号进行上采样而创建的。 该方法还包括获得指示第一媒体信号内的错误的第二信号。 第二信号是第二格式，例如具有记录视频信号的较低采样范围的格式。 处理信号以第一信号的格式放置第二信号。 然后，将估计的误差信号与原始信号组合以得到纠错输出。

公开(公告)号：US10250909B1

公开(公告)日：2019-04-02

申请号：US15817732

申请日：2017-11-20

Applicant: ATI Technologies ULC

Inventor： Boris Ivanovic ,  Allen J. Porter

IPC: H04N7/15 ,  H04N19/80 ,  H04N19/87 ,  H04N19/172 ,  H04N19/517

Abstract: A processing device for use with a video conferencing network is provided. The processing device includes memory configured to store data and a processor. The processor is configured to determine a first sampling phase for a portion of first video data and chrominance sub-sample the portion of first video data using the first sampling phase. The processor is also configured to encode the sub-sampled portion of first video data and decode a sub-sampled, encoded portion of second video data. The processor is further configured to determine a second sampling phase at which the portion of second video data is chrominance sub-sampled and chrominance up-sample the portion of second video data using the second sample phase.

公开(公告)号：US20170105022A1

公开(公告)日：2017-04-13

申请号：US15388831

申请日：2016-12-22

Applicant: ATI Technologies ULC

Inventor： Sahar Alipour Kashi ,  Boris Ivanovic ,  Allen J. Porter

IPC: H04N19/513 ,  H04N19/105

CPC classification number: H04N19/521 ,  H04N19/105 ,  H04N19/117 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/52

Abstract: Methods and apparatus for facilitating processing a reference frame to produce an output frame. Motion vector data for a block of reference frame pels estimates the displacement of the reference frame pels from corresponding pels in a prior input frame. Comparison metrics are produced for a pel of the reference frame with respect to that pel and a plurality of neighboring reference frame pels. A first comparison metric is based on a comparison with corresponding pels of a prior output frame that corresponds to the prior input frame as previously processed. A second comparison metric is based on a comparison with corresponding pels of a motion compensated prior output frame derived from applying motion vector data to the pels of the prior output frame. A pel of the output frame that corresponds to the reference frame pel is determined using the first and second comparison metrics.

公开(公告)号：US09596481B2

公开(公告)日：2017-03-14

申请号：US13754221

申请日：2013-01-30

Applicant: ATI Technologies ULC

Inventor： Sahar Alipour Kashi ,  Boris Ivanovic ,  Allen J. Porter

IPC: H04N11/02 ,  H04N19/513 ,  H04N19/52 ,  H04N19/117 ,  H04N19/423

CPC classification number: H04N19/521 ,  H04N19/105 ,  H04N19/117 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/52

Abstract: Methods and apparatus for facilitating processing a reference frame to produce an output frame. Motion vector data for a block of reference frame pels estimates the displacement of the reference frame pels from corresponding pels in a prior input frame. Comparison metrics are produced for a pel of the reference frame with respect to that pel and a plurality of neighboring reference frame pels A first comparison metric is based on a comparison with corresponding pels of a prior output frame that corresponds to the prior input frame as previously processed. A second comparison metric is based on a comparison with corresponding pels of a motion compensated prior output frame derived from applying motion vector data to the pels of the prior output frame. A pel of the output frame that corresponds to the reference frame pel is determined using the first and second comparison metrics.

Abstract translation: 用于促进处理参考帧以产生输出帧的方法和装置。 用于参考帧像素块的运动矢量数据估计参考帧像素与先前输入帧中的相应像素的位移。 对于参考帧的像素相对于该像素和多个相邻参考帧像素产生比较度量。第一比较度量基于与先前输入帧对应的先前输出帧的对应像素的比较，如先前 处理。 第二比较度量是基于与将运动矢量数据应用于先前输出帧的像素而得到的运动补偿先前输出帧的相应像素的比较。 使用第一和第二比较度量确定对应于参考帧像素的输出帧的像素。

公开(公告)号：US09432690B2

公开(公告)日：2016-08-30

申请号：US13754210

申请日：2013-01-30

Applicant: ATI Technologies ULC

Inventor： Yubao Zheng ,  Boris Ivanovic ,  Allen J. Porter ,  Xingping Cao

IPC: H04N11/02 ,  H04N19/523 ,  H04N19/52

CPC classification number: H04N19/523 ,  H04N19/52

Abstract: Methods and apparatus for facilitating motion estimation in video processing are provided. In one embodiment, search block is defined within one frame. A relative location of a corresponding block in another frame with respect to the search block is determined based on comparative searching at a predetermined granularity to produce a motion vector for the search block with a first precision. Correlation values are determined with respect to the search block for the corresponding block and for one block or more blocks defined at relative locations of less than the predetermined granularity with respect to the corresponding block in different directions. A refined motion vector for the search block with a second higher precision is determined based on the relative location of the block having a selected correlation value that is selected from among the determined correlation values.

Abstract translation: 提供了用于促进视频处理中的运动估计的方法和装置。 在一个实施例中，搜索块在一个帧内被定义。 基于以预定粒度的比较搜索来确定相对于搜索块的另一帧中的对应块的相对位置，以产生具有第一精度的搜索块的运动矢量。 相对于相对于块的搜索块以及在相对于相对于不同方向的块的预定粒度的相对位置处定义的一个或多个块来确定相关值。 基于从所确定的相关值中选择的具有所选相关值的块的相对位置来确定具有第二更高精度的搜索块的精细运动矢量。

公开(公告)号：US20140211855A1

公开(公告)日：2014-07-31

申请号：US13754221

申请日：2013-01-30

Applicant: ATI TECHNOLOGIES ULC

Inventor： Sahar Alipour Kashi ,  Boris Ivanovic ,  Allen J. Porter

IPC: H04N7/26

CPC classification number: H04N19/521 ,  H04N19/105 ,  H04N19/117 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/52

Abstract: Methods and apparatus for facilitating processing a reference frame to produce an output frame. Motion vector data for a block of reference frame pels estimates the displacement of the reference frame pels from corresponding pels in a prior input frame. Comparison metrics are produced for a pel of the reference frame with respect to that pel and a plurality of neighboring reference frame pels A first comparison metric is based on a comparison with corresponding pels of a prior output frame that corresponds to the prior input frame as previously processed. A second comparison metric is based on a comparison with corresponding pels of a motion compensated prior output frame derived from applying motion vector data to the pels of the prior output frame. A pel of the output frame that corresponds to the reference frame pel is determined using the first and second comparison metrics.

Abstract translation: 用于促进处理参考帧以产生输出帧的方法和装置。 用于参考帧像素块的运动矢量数据估计参考帧像素与先前输入帧中的相应像素的位移。 对于参考帧的像素相对于该像素和多个相邻参考帧像素产生比较度量。第一比较度量基于与先前输入帧对应的先前输出帧的对应像素的比较，如先前 处理。 第二比较度量是基于与将运动矢量数据应用于先前输出帧的像素而得到的运动补偿先前输出帧的相应像素的比较。 使用第一和第二比较度量确定对应于参考帧像素的输出帧的像素。

公开(公告)号：US20140211854A1

公开(公告)日：2014-07-31

申请号：US13754210

申请日：2013-01-30

Applicant: ATI TECHNOLOGIES ULC

Inventor： Yubao Zheng ,  Boris Ivanovic ,  Allen J. Porter ,  Xingping Cao

IPC: H04N7/26

CPC classification number: H04N19/523 ,  H04N19/52

Abstract: Methods and apparatus for facilitating motion estimation in video processing are provided. In one embodiment, search block is defined within one frame. A relative location of a corresponding block in another frame with respect to the search block is determined based on comparative searching at a predetermined granularity to produce a motion vector for the search block with a first precision. Correlation values are determined with respect to the search block for the corresponding block and for one block or more blocks defined at relative locations of less than the predetermined granularity with respect to the corresponding block in different directions. A refined motion vector for the search block with a second higher precision is determined based on the relative location of the block having a selected correlation value that is selected from among the determined correlation values.

Abstract translation: 提供了用于促进视频处理中的运动估计的方法和装置。 在一个实施例中，搜索块在一个帧内被定义。 基于以预定粒度的比较搜索来确定相对于搜索块的另一帧中的对应块的相对位置，以产生具有第一精度的搜索块的运动矢量。 相对于相对于块的搜索块以及在相对于相对于不同方向的块的预定粒度的相对位置处定义的一个或多个块来确定相关值。 基于从所确定的相关值中选择的具有所选相关值的块的相对位置来确定具有第二更高精度的搜索块的精细运动矢量。

公开(公告)号：US20140022452A1

公开(公告)日：2014-01-23

申请号：US13644676

申请日：2012-10-04

Applicant: ATI TECHNOLOGIES, ULC

Inventor： Boris Ivanovic ,  Allen J. Porter ,  Yubao Zheng

IPC: H04N7/01

CPC classification number: H04N7/0117

Abstract: A method and apparatus provide for improving signal quality. The method includes receiving a first media signal, such as a video signal, in a first format, such as 1080p. The provided video signal is one that is created by upsampling a video signal recorded in a format having a lower sampling rate. The method also includes obtaining a second signal indicative of error within the first media signal. The second signal is in a second format, such as the format having a lower sampling rage in which the video signal was recorded. The signal is processed to place the second signal in the format of the first signal. Then, the estimated error signal is combined with the original signal to arrive at an error corrected output.

Abstract translation: 一种提高信号质量的方法和装置。 该方法包括以诸如1080p的第一格式接收诸如视频信号的第一媒体信号。 提供的视频信号是通过以采样率较低的格式记录的视频信号进行上采样而创建的。 该方法还包括获得指示第一媒体信号内的错误的第二信号。 第二信号是第二格式，例如具有记录视频信号的较低采样范围的格式。 处理信号以第一信号的格式放置第二信号。 然后，将估计的误差信号与原始信号组合以得到纠错输出。