Enhanced compression in representing non-frame-edge blocks of image frames
    1.
    发明授权
    Enhanced compression in representing non-frame-edge blocks of image frames 有权
    表示图像帧的非帧边缘块的增强压缩

    公开(公告)号:US08873625B2

    公开(公告)日:2014-10-28

    申请号:US11779285

    申请日:2007-07-18

    申请人: Anurag Goel

    发明人: Anurag Goel

    摘要: Using fewer bits to indicate the prediction mode used for encoding some of the non-frame-edge blocks of a frame. In an embodiment, fewer bits are used in case of boundary blocks of a slice, or slice group. In another embodiment, fewer bits are used when adjacent blocks are encoded using inter-frame coding or switchable intra-frame coding and such adjacent block cannot be used in predicting a block.

    摘要翻译: 使用较少的比特来指示用于编码帧的一些非帧边缘块的预测模式。 在一个实施例中,在切片或切片组的边界块的情况下使用较少的比特。 在另一个实施例中,当使用帧间编码或可切换帧内编码来对相邻块进行编码时使用较少的位,并且这种相邻块不能用于预测块。

    SEPARATELY CODING THE POSITION OF A LAST SIGNIFICANT COEFFICIENT OF A VIDEO BLOCK IN VIDEO CODING
    2.
    发明申请
    SEPARATELY CODING THE POSITION OF A LAST SIGNIFICANT COEFFICIENT OF A VIDEO BLOCK IN VIDEO CODING 有权
    在视频编码中单独编码视频块的最新重要系数的位置

    公开(公告)号:US20120140813A1

    公开(公告)日:2012-06-07

    申请号:US13302996

    申请日:2011-11-22

    IPC分类号: H04N7/26

    摘要: In one example, an apparatus is disclosed for coding coefficients associated with a block of video data during a video coding process, wherein the apparatus includes a video coder configured to code information that identifies a position of a last non-zero coefficient within the block according to a scanning order associated with the block prior to coding information that identifies positions of other non-zero coefficients within the block, including at least one of the following: coding a one-dimensional position within the block that identifies the position of the last non-zero coefficient; coding a two-dimensional position within the block that identifies the position of the last non-zero coefficient, and coding a flag that indicates whether the last non-zero coefficient is located within a range of positions within the block, and coding the one-dimensional position when the last non-zero coefficient is located within the range, and otherwise coding the two-dimensional position.

    摘要翻译: 在一个示例中,公开了一种用于在视频编码过程期间对与视频数据块相关联的系数进行编码的装置,其中该装置包括视频编码器,该视频编码器被配置为对该块内的最后一个非零系数的位置进行编码的信息, 涉及在编码信息之前与所述块相关联的扫描顺序,所述信息识别所述块内的其他非零系数的位置,包括以下中的至少一个:对所述块内的一维位置进行编码,所述位置标识所述最后非零 - 零系数; 对识别最后一个非零系数的位置的块内的二维位置进行编码,以及编码指示最后一个非零系数是否位于该块内的位置范围内的标志, 最后一个非零系数位于该范围内的二维位置,否则编码二维位置。

    I-frame size estimation based on edge strength
    3.
    发明授权
    I-frame size estimation based on edge strength 有权
    基于边缘强度的I帧尺寸估计

    公开(公告)号:US08804822B2

    公开(公告)日:2014-08-12

    申请号:US12904005

    申请日:2010-10-13

    申请人: Gijesh Varghese

    发明人: Gijesh Varghese

    IPC分类号: H04N11/02 H04N7/26

    摘要: Various embodiments of the present invention relate to systems, devices and method of video encoding that select a quantization parameter set based on a global edge strength value and an available bitrate for a corresponding compressed frame. Quantization parameters are selected using a mathematical correlation between the global edge strength value of the I-frame and an available bitrate/maxim target frame size for the corresponding compressed frame.

    摘要翻译: 本发明的各种实施例涉及视频编码的系统,设备和方法,其基于全局边缘强度值和相应压缩帧的可用比特率来选择量化参数集。 使用I帧的全局边缘强度值和对应的压缩帧的可用比特率/最大目标帧大小之间的数学相关来选择量化参数。

    Method and apparatus for joint quantization parameter adjustment
    4.
    发明申请
    Method and apparatus for joint quantization parameter adjustment 有权
    联合量化参数调整的方法和装置

    公开(公告)号:US20100290524A1

    公开(公告)日:2010-11-18

    申请号:US12800263

    申请日:2010-05-12

    IPC分类号: H04N7/32

    摘要: The present principles provides a method and apparatus for jointly adjusting the rounding offset and the quantization step size on a macroblock level to improve the perceptual quality of the fine details of the encoded image. In one implementation, the content of the pictures is analyzed and the smooth regions are identified. A quantization step size value for the picture is initially defined and a rounding offset is adaptively assigned to each macroblock based on the content characteristics. The quantization step size is then calculated for the a particular macroblock according to another content characteristic of the macroblock such that the encoding of the particular macroblock is performed in response to the calculated quantization step size and the rounding offset value of the first block.

    摘要翻译: 本发明提供了一种用于在宏块级别上联合调整舍入偏移量和量化步长的方法和装置,以提高编码图像的精细细节的感知质量。 在一个实现中,分析图像的内容并且识别平滑区域。 最初定义图像的量化步长值,并且基于内容特征对每个宏块自适应地分配舍入偏移。 然后根据宏块的另一内容特性,针对特定宏块计算量化步长,使得响应于计算出的量化步长和第一块的舍入偏移值执行特定宏块的编码。

    Separately coding the position of a last significant coefficient of a video block in video coding
    5.
    发明授权
    Separately coding the position of a last significant coefficient of a video block in video coding 有权
    对视频编码中视频块的最后一个有效系数的位置进行单独编码

    公开(公告)号:US08976861B2

    公开(公告)日:2015-03-10

    申请号:US13302996

    申请日:2011-11-22

    摘要: In one example, an apparatus is disclosed for coding coefficients associated with a block of video data during a video coding process, wherein the apparatus includes a video coder configured to code information that identifies a position of a last non-zero coefficient within the block according to a scanning order associated with the block prior to coding information that identifies positions of other non-zero coefficients within the block, including at least one of the following: coding a one-dimensional position within the block that identifies the position of the last non-zero coefficient; coding a two-dimensional position within the block that identifies the position of the last non-zero coefficient, and coding a flag that indicates whether the last non-zero coefficient is located within a range of positions within the block, and coding the one-dimensional position when the last non-zero coefficient is located within the range, and otherwise coding the two-dimensional position.

    摘要翻译: 在一个示例中,公开了一种用于在视频编码过程期间对与视频数据块相关联的系数进行编码的装置,其中该装置包括视频编码器,该视频编码器被配置为对该块内的最后一个非零系数的位置进行编码的信息, 涉及在编码信息之前与所述块相关联的扫描顺序,所述信息识别所述块内的其他非零系数的位置,包括以下中的至少一个:对所述块内的一维位置进行编码,所述位置标识所述最后非零 - 零系数; 对识别最后一个非零系数的位置的块内的二维位置进行编码,以及编码指示最后一个非零系数是否位于该块内的位置范围内的标志, 最后一个非零系数位于该范围内的二维位置,否则编码二维位置。

    Method and apparatus for joint quantization parameter adjustment
    7.
    发明授权
    Method and apparatus for joint quantization parameter adjustment 有权
    联合量化参数调整的方法和装置

    公开(公告)号:US08848788B2

    公开(公告)日:2014-09-30

    申请号:US12800263

    申请日:2010-05-12

    摘要: The present principles provides a method and apparatus for jointly adjusting the rounding offset and the quantization step size on a macroblock level to improve the perceptual quality of the fine details of the encoded image. In one implementation, the content of the pictures is analyzed and the smooth regions are identified. A quantization step size value for the picture is initially defined and a rounding offset is adaptively assigned to each macroblock based on the content characteristics. The quantization step size is then calculated for the a particular macroblock according to another content characteristic of the macroblock such that the encoding of the particular macroblock is performed in response to the calculated quantization step size and the rounding offset value of the first block.

    摘要翻译: 本发明提供了一种用于在宏块级别上联合调整舍入偏移量和量化步长的方法和装置,以提高编码图像的精细细节的感知质量。 在一个实现中,分析图像的内容并且识别平滑区域。 最初定义图像的量化步长值,并且基于内容特征对每个宏块自适应地分配舍入偏移。 然后根据宏块的另一内容特性,针对特定宏块计算量化步长,使得响应于计算出的量化步长和第一块的舍入偏移值执行特定宏块的编码。

    METHOD AND APPARATUS FOR ENCODING AND DECODING OF IMAGES
    8.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING OF IMAGES 有权
    用于编码和解码图像的方法和装置

    公开(公告)号:US20120170858A1

    公开(公告)日:2012-07-05

    申请号:US13383346

    申请日:2010-03-16

    IPC分类号: G06K9/36

    摘要: An encoding method for encoding of images and corresponding decoding method is disclosed, as well as an encoder and a decoder. The encoding method comprises creating, in an encoder, a residual block from an original block and a prediction block which is an approximation of the original block, wherein the created residual block comprises residual block elements. The en-coding method further comprises re-ordering, in the encoder, the residual block elements within the residual block; and applying, in the encoder, a transform to the re-ordered residual block. By re-ordering the residual block elements prior to applying a transform, an improved efficiency of the encoding may be obtained.

    摘要翻译: 公开了一种用于编码图像的编码方法和相应的解码方法,以及编码器和解码器。 编码方法包括在编码器中创建来自原始块的残差块和作为原始块的近似的预测块,其中所创建的残余块包括残余块元素。 en编码方法还包括在编码器中重新排序剩余块内的残余块元素; 以及在编码器中对重新排序的残余块应用变换。 通过在应用变换之前重新排序残余块元素,可以获得改进的编码效率。

    I-Frame Size Estimation Based on Edge Strength
    9.
    发明申请
    I-Frame Size Estimation Based on Edge Strength 有权
    基于边缘强度的I帧尺寸估计

    公开(公告)号:US20120093219A1

    公开(公告)日:2012-04-19

    申请号:US12904005

    申请日:2010-10-13

    申请人: Gijesh Varghese

    发明人: Gijesh Varghese

    IPC分类号: H04N7/50 H04N7/26

    摘要: Various embodiments of the present invention relate to systems, devices and method of video encoding that select a quantization parameter set based on a global edge strength value and an available bitrate for a corresponding compressed frame. Quantization parameters are selected using a mathematical correlation between the global edge strength value of the I-frame and an available bitrate/maxim target frame size for the corresponding compressed frame.

    摘要翻译: 本发明的各种实施例涉及视频编码的系统,设备和方法,其基于全局边缘强度值和相应压缩帧的可用比特率来选择量化参数集。 使用I帧的全局边缘强度值和对应的压缩帧的可用比特率/最大目标帧大小之间的数学相关来选择量化参数。

    Enhanced Compression In Representing Non-Frame-Edge Blocks Of Image Frames
    10.
    发明申请
    Enhanced Compression In Representing Non-Frame-Edge Blocks Of Image Frames 有权
    增强压缩表示图像帧的非帧边缘块

    公开(公告)号:US20090022219A1

    公开(公告)日:2009-01-22

    申请号:US11779285

    申请日:2007-07-18

    申请人: Anurag Goel

    发明人: Anurag Goel

    IPC分类号: H04N7/26

    摘要: Using fewer bits to indicate the prediction mode used for encoding some of the non-frame-edge blocks of a frame. In an embodiment, fewer bits are used in case of boundary blocks of a slice, or slice group. In another embodiment, fewer bits are used when adjacent blocks are encoded using inter-frame coding or switchable intra-frame coding and such adjacent block cannot be used in predicting a block.

    摘要翻译: 使用较少的比特来指示用于编码帧的一些非帧边缘块的预测模式。 在一个实施例中,在切片或切片组的边界块的情况下使用较少的比特。 在另一个实施例中,当使用帧间编码或可切换帧内编码来对相邻块进行编码时使用较少的位,并且这种相邻块不能用于预测块。