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    Intelligent differential quantization of video coding
    4.
    发明授权
    Intelligent differential quantization of video coding 有权
    智能差分量化的视频编码

    公开(公告)号：US07602851B2

    公开(公告)日：2009-10-13

    申请号：US10623195

    申请日：2003-07-18

    申请人： Ming-Chieh Lee ,  Bruce Chih-Lung Lin ,  Pohsiang Hsu ,  Thomas W. Holcomb

    发明人： Ming-Chieh Lee ,  Bruce Chih-Lung Lin ,  Pohsiang Hsu ,  Thomas W. Holcomb

    IPC分类号： H04N7/12

    CPC分类号： H04N19/17 ,  H04N19/124 ,  H04N19/137 ,  H04N19/176

    摘要： With intelligent differential quantization, a video codec intelligently quantizes video at differing strength levels within a frame, such as on a macroblock (MB) or a group of MB basis. This allows the codec to control bit usage on a finer granularity than a frame to meet hardware constraints, as well as providing perceptual optimization by coarsely quantizing unimportant regions, while finely quantizing important regions within a frame. The intelligent differential quantization uses motion information gathered from encoding and analysis of the video to classify the importance of different regions of the image, and quantizes the regions accordingly. In addition, the intelligent differential quantization include efficient signaling of information as to the differential quantization strengths in the compressed bit stream.

    摘要翻译： 通过智能差分量化，视频编解码器在帧内以不同的强度水平智能量化视频，例如在宏块（MB）或一组基于MB的基础上。 这允许编解码器以比帧更精细的粒度来控制比特使用以满足硬件约束，以及通过粗略量化不重要区域来提供感知优化，同时精细量化帧内的重要区域。 智能差分量化使用从视频的编码和分析中收集的运动信息来分类图像的不同区域的重要性，并且相应地量化该区域。 此外，智能差分量化包括关于压缩比特流中的差分量化强度的信息的有效信令。

    REGIONS OF INTEREST FOR QUALITY ADJUSTMENTS
    7.
    发明申请
    REGIONS OF INTEREST FOR QUALITY ADJUSTMENTS 有权
    质量调整区域

    公开(公告)号：US20120269266A1

    公开(公告)日：2012-10-25

    申请号：US13539730

    申请日：2012-07-02

    申请人： Chih-Lung Lin ,  Ming-Chieh Lee ,  Stacey Spears ,  Philip Lawrence Garrett ,  Anil Madhav Murching ,  Amy Jennifer Beauford ,  Thomas W. Holcomb ,  Xiping Zuo

    发明人： Chih-Lung Lin ,  Ming-Chieh Lee ,  Stacey Spears ,  Philip Lawrence Garrett ,  Anil Madhav Murching ,  Amy Jennifer Beauford ,  Thomas W. Holcomb ,  Xiping Zuo

    IPC分类号： H04N7/26

    CPC分类号： H04N19/17 ,  H04N19/124 ,  H04N19/147 ,  H04N19/162 ,  H04N19/61

    摘要： Quality settings established by an encoder are adjusted based on information associated with regions of interest (“ROIs”). For example, quantization step sizes can be reduced (to improve quality) or increased (to reduce bit rate). ROIs can be identified and quality settings can be adjusted based on input received from a user interface. An overlap setting can be determined for a portion of a picture that corresponds to an ROI overlap area. For example, an overlap setting is chosen from step sizes corresponding to a first overlapping ROI and a second overlapping ROI, or from relative reductions in step size corresponding to the first ROI and the second ROI. ROIs can be parameterized by information (e.g., using data structures) that indicates spatial dimensions of the ROIs and quality adjustment information (e.g., dead zone information, step size information, and quantization mode information).

    摘要翻译： 基于与兴趣区域（ROI）相关联的信息来调整由编码器建立的质量设置。 例如，可以减小量化步长（提高质量）或增加（以减少比特率）。 可以识别ROI，并且可以基于从用户界面接收的输入来调整质量设置。 可以针对对应于ROI重叠区域的图像的一部分来确定重叠设置。 例如，从与第一重叠ROI和第二重叠ROI相对应的步长尺寸或从与第一ROI和第二ROI对应的步长的相对减小中选择重叠设置。 可以通过指示ROI的空间维度和质量调整信息（例如，死区信息，步长信息和量化模式信息）的信息（例如，使用数据结构）对ROI进行参数化。

    Regions of interest for quality adjustments
    8.
    发明授权
    Regions of interest for quality adjustments 有权
    感兴趣的地区进行质量调整

    公开(公告)号：US08576908B2

    公开(公告)日：2013-11-05

    申请号：US13539730

    申请日：2012-07-02

    申请人： Chih-Lung Lin ,  Ming-Chieh Lee ,  Stacey Spears ,  Philip Lawrence Garrett ,  Anil Madhav Murching ,  Amy Jennifer Beauford ,  Thomas W. Holcomb ,  Xiping Zuo

    发明人： Chih-Lung Lin ,  Ming-Chieh Lee ,  Stacey Spears ,  Philip Lawrence Garrett ,  Anil Madhav Murching ,  Amy Jennifer Beauford ,  Thomas W. Holcomb ,  Xiping Zuo

    IPC分类号： H04N11/02

    CPC分类号： H04N19/17 ,  H04N19/124 ,  H04N19/147 ,  H04N19/162 ,  H04N19/61

    摘要： Quality settings established by an encoder are adjusted based on information associated with regions of interest (“ROIs”). For example, quantization step sizes can be reduced (to improve quality) or increased (to reduce bit rate). ROIs can be identified and quality settings can be adjusted based on input received from a user interface. An overlap setting can be determined for a portion of a picture that corresponds to an ROI overlap area. For example, an overlap setting is chosen from step sizes corresponding to a first overlapping ROI and a second overlapping ROI, or from relative reductions in step size corresponding to the first ROI and the second ROI. ROIs can be parameterized by information (e.g., using data structures) that indicates spatial dimensions of the ROIs and quality adjustment information (e.g., dead zone information, step size information, and quantization mode information).

    摘要翻译： 基于与感兴趣区域（“ROI”）相关联的信息来调整由编码器建立的质量设置。 例如，可以减小量化步长（提高质量）或增加（以减少比特率）。 可以识别ROI，并且可以基于从用户界面接收的输入来调整质量设置。 可以针对对应于ROI重叠区域的图像的一部分来确定重叠设置。 例如，从与第一重叠ROI和第二重叠ROI相对应的步长尺寸或从与第一ROI和第二ROI对应的步长的相对减小中选择重叠设置。 可以通过指示ROI的空间维度和质量调整信息（例如，死区信息，步长信息和量化模式信息）的信息（例如，使用数据结构）对ROI进行参数化。

    Regions of interest for quality adjustments
    9.
    发明申请
    Regions of interest for quality adjustments 有权
    感兴趣的地区进行质量调整

    公开(公告)号：US20080240250A1

    公开(公告)日：2008-10-02

    申请号：US11731851

    申请日：2007-03-30

    申请人： Chih-Lung Lin ,  Ming-Chieh Lee ,  Stacey Spears ,  Philip Lawrence Garrett ,  Anil Madhav Murching ,  Amy Jennifer Beauford ,  Thomas W. Holcomb ,  Xiping Zuo

    发明人： Chih-Lung Lin ,  Ming-Chieh Lee ,  Stacey Spears ,  Philip Lawrence Garrett ,  Anil Madhav Murching ,  Amy Jennifer Beauford ,  Thomas W. Holcomb ,  Xiping Zuo

    IPC分类号： H04N11/04

    CPC分类号： H04N19/17 ,  H04N19/124 ,  H04N19/147 ,  H04N19/162 ,  H04N19/61

    摘要： Quality settings established by an encoder are adjusted based on information associated with regions of interest (“ROIs”). For example, quantization step sizes can be reduced (to improve quality) or increased (to reduce bit rate). ROIs can be identified and quality settings can be adjusted based on input received from a user interface. An overlap setting can be determined for a portion of a picture that corresponds to an ROI overlap area. For example, an overlap setting is chosen from step sizes corresponding to a first overlapping ROI and a second overlapping ROI, or from relative reductions in step size corresponding to the first ROI and the second ROI. ROIs can be parameterized by information (e.g., using data structures) that indicates spatial dimensions of the ROIs and quality adjustment information (e.g., dead zone information, step size information, and quantization mode information).

    摘要翻译： 基于与感兴趣区域（“ROI”）相关联的信息来调整由编码器建立的质量设置。 例如，可以减小量化步长（提高质量）或增加（以减少比特率）。 可以识别ROI，并且可以基于从用户界面接收的输入来调整质量设置。 可以针对对应于ROI重叠区域的图像的一部分来确定重叠设置。 例如，从与第一重叠ROI和第二重叠ROI相对应的步长尺寸或从与第一ROI和第二ROI对应的步长的相对减小中选择重叠设置。 可以通过指示ROI的空间维度和质量调整信息（例如，死区信息，步长信息和量化模式信息）的信息（例如，使用数据结构）对ROI进行参数化。

    Regions of interest for quality adjustments
    10.
    发明授权
    Regions of interest for quality adjustments 有权
    感兴趣的地区进行质量调整

    公开(公告)号：US08243797B2

    公开(公告)日：2012-08-14

    申请号：US11731851

    申请日：2007-03-30

    申请人： Chih-Lung Lin ,  Ming-Chieh Lee ,  Stacey Spears ,  Philip Lawrence Garrett ,  Anil Madhav Murching ,  Amy Jennifer Beauford ,  Thomas W. Holcomb ,  Xiping Zuo

    发明人： Chih-Lung Lin ,  Ming-Chieh Lee ,  Stacey Spears ,  Philip Lawrence Garrett ,  Anil Madhav Murching ,  Amy Jennifer Beauford ,  Thomas W. Holcomb ,  Xiping Zuo

    IPC分类号： H04N11/02

    CPC分类号： H04N19/17 ,  H04N19/124 ,  H04N19/147 ,  H04N19/162 ,  H04N19/61

    摘要： Quality settings established by an encoder are adjusted based on information associated with regions of interest (“ROIs”). For example, quantization step sizes can be reduced (to improve quality) or increased (to reduce bit rate). ROIs can be identified and quality settings can be adjusted based on input received from a user interface. An overlap setting can be determined for a portion of a picture that corresponds to an ROI overlap area. For example, an overlap setting is chosen from step sizes corresponding to a first overlapping ROI and a second overlapping ROI, or from relative reductions in step size corresponding to the first ROI and the second ROI. ROIs can be parameterized by information (e.g., using data structures) that indicates spatial dimensions of the ROIs and quality adjustment information (e.g., dead zone information, step size information, and quantization mode information).

    摘要翻译： 基于与感兴趣区域（“ROI”）相关联的信息来调整由编码器建立的质量设置。 例如，可以减小量化步长（提高质量）或增加（以减少比特率）。 可以识别ROI，并且可以基于从用户界面接收的输入来调整质量设置。 可以针对对应于ROI重叠区域的图像的一部分来确定重叠设置。 例如，从与第一重叠ROI和第二重叠ROI相对应的步长尺寸或从与第一ROI和第二ROI对应的步长的相对减小中选择重叠设置。 可以通过指示ROI的空间维度和质量调整信息（例如，死区信息，步长信息和量化模式信息）的信息（例如，使用数据结构）对ROI进行参数化。