Method of encoding flag, method of decoding flag, and apparatus thereof
    41.
    发明授权
    Method of encoding flag, method of decoding flag, and apparatus thereof 有权
    编码标志的方法,标志的解码方法及其装置

    公开(公告)号:US07840083B2

    公开(公告)日:2010-11-23

    申请号:US11599484

    申请日:2006-11-15

    IPC分类号: G06K9/36 G06K9/46 G06K9/00

    摘要: A method of encoding flags, a method of decoding flags and an apparatus thereof, in which flag encoding and decoding can be efficiently performed by using spatial correlation between various flags included a plurality of blocks are provided. The method includes collecting flag values respectively allocated to groups of the plurality of blocks according to spatial correlation of blocks to create a flag bit-string, dividing the flag bit-string into a plurality of divided bit-strings using a group size, setting a pattern bit indicating whether all bits included in the divided bit-strings are 0 or not, and performing entropy coding on the divided bit-strings according to the set pattern bit.

    摘要翻译: 提供一种编码标志的方法,一种解码标志的方法及其装置,其中可以通过使用包括多个块的各种标志之间的空间相关性来有效地执行标志编码和解码。 该方法包括根据块的空间相关性分别分配分配给多个块的组的标志值,以创建标志位串,使用组大小将标志位串划分成多个划分的位串,将 模式位,指示分割的位串中包括的所有比特是否为0,以及根据所设置的模式比特对分割的比特串进行熵编码。

    METHOD AND APPARATUS FOR ENCODING AND DECODING AN IMAGE USING A REFERENCE PICTURE
    42.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING AN IMAGE USING A REFERENCE PICTURE 失效
    使用参考图像编码和解码图像的方法和装置

    公开(公告)号:US20090285300A1

    公开(公告)日:2009-11-19

    申请号:US12395731

    申请日:2009-03-02

    IPC分类号: H04N7/32 H04N7/26

    摘要: A method and apparatus for encoding and decoding an image by performing motion prediction and compensation on pictures in a group of pictures by selectively using a high-quality key picture that is previously encoded and restored, and a second picture that is previously encoded and restored. The method of encoding an image improves the prediction efficiency of an image by storing a key picture, which is encoded and restored to a high quality by reducing a loss caused by a quantization error using a small quantization coefficient, in a first storage unit and storing a previously encoded and restored second picture in a second storage unit, and then performing motion prediction and compensation by selectively using the key picture stored in the first storage unit and the second picture stored in the second storage unit while encoding a next picture in a group of pictures.

    摘要翻译: 通过选择性地使用先前被编码和恢复的高质量关键图像,以及先前编码和恢复的第二图像,对图像组中的图像执行运动预测和补偿来对图像进行编码和解码的方法和装置。 编码图像的方法通过在第一存储单元中存储通过减少由量化误差引起的量化误差造成的损失而被编码并恢复为高质量的关键图像来提高图像的预测效率,并存储 在第二存储单元中先前编码并恢复的第二图像,然后通过选择性地使用存储在第一存储单元中的密钥图像和存储在第二存储单元中的第二图像来对组中的下一图像进行编码来执行运动预测和补偿 的图片。

    Flag encoding method, flag decoding method, and apparatus thereof
    44.
    发明申请
    Flag encoding method, flag decoding method, and apparatus thereof 审中-公开
    标志编码方法,标志解码方法及其装置

    公开(公告)号:US20070297518A1

    公开(公告)日:2007-12-27

    申请号:US11723862

    申请日:2007-03-22

    IPC分类号: H04B1/66

    摘要: The present invention relates to a video compression technology, and more particularly, to an effective flag-coding method and apparatus thereof by using a spatial correlation among various flags used to code a video frame. In order to accomplish the object, there is provided an apparatus for encoding a flag used to code a video frame composed of a plurality of blocks, the apparatus including a flag-assembling unit which collects flag values allotted for each block and produces a flag bit string, based on spatial correlation of the blocks, a maximum-run-determining unit which determines a maximum run of the flag bit string, and a converting unit which converts the bits included in the flag bit string into a codeword having a size no more than the maximum run by using a predetermined codeword table.

    摘要翻译: 视频压缩技术技术领域本发明涉及一种视频压缩技术,更具体地说,涉及一种通过使用用于对视频帧进行编码的各种标志之间的空间相关性的有效标志编码方法及其装置。 为了实现该目的,提供了一种用于编码用于编码由多个块组成的视频帧的标志的装置,该装置包括标志组合单元,该标志组合单元收集为每个块分配的标志值,并产生标志位 字符串,基于所述块的空间相关性,确定所述标志位串的最大行程的最大运行确定单元,以及将包括在所述标志位串中的位转换为尺寸不大的码字的转换单元 比通过使用预定码字表的最大运行。

    Method and apparatus for encoding video by using dynamic-range transformation, and method and apparatus for decoding video by using dynamic-range transformation
    45.
    发明授权
    Method and apparatus for encoding video by using dynamic-range transformation, and method and apparatus for decoding video by using dynamic-range transformation 有权
    通过使用动态范围变换来编码视频的方法和装置,以及通过使用动态范围变换对视频进行解码的方法和装置

    公开(公告)号:US09100661B2

    公开(公告)日:2015-08-04

    申请号:US13079982

    申请日:2011-04-05

    IPC分类号: H04N19/00 H04N19/61 H04N19/98

    CPC分类号: H04N19/61 H04N19/98

    摘要: Provided is a method and apparatus for encoding a video by using dynamic range transformation based on content and a method and apparatus for decoding a video by using dynamic range transformation based on content. The encoding method includes: performing inter prediction, through motion estimation, and intra prediction for a current region using image data in which a dynamic range of the current region is transformed based on content of an image of input video; performing transformation on residual data generated by the intra prediction and the inter prediction and performing quantization on a transformation coefficient generated by the transformation; and performing entropy encoding on the quantized transformation coefficient.

    摘要翻译: 提供了一种通过使用基于内容的动态范围变换来编码视频的方法和装置,以及通过使用基于内容的动态范围变换对视频进行解码的方法和装置。 编码方法包括:使用基于输入图像的图像的内容对当前区域的动态范围进行变换的图像数据,通过运动估计和当前区域的帧内预测进行帧间预测; 对由帧内预测和帧间预测生成的残差数据进行变换,对由变换生成的变换系数进行量化; 对量化的变换系数进行熵编码。

    Method and apparatus for video encoding and decoding
    47.
    发明授权
    Method and apparatus for video encoding and decoding 有权
    用于视频编码和解码的方法和装置

    公开(公告)号:US08873633B2

    公开(公告)日:2014-10-28

    申请号:US12031847

    申请日:2008-02-15

    摘要: A method and apparatus for encoding a skip macroblock by dividing the skip macroblock into smaller skip sub blocks and using predictive motion vectors predicted from motion vectors of blocks adjacent to the skip sub blocks, and a method and apparatus for decoding the skip macroblock is provided. Accordingly, by adding predetermined binary information indicating whether the skip macroblock is divided to the skip macroblock that generally transmits only prediction mode information, division of the skip macroblock can be adaptively applied, or all skip macroblocks can be divided into sub-blocks to be processed, so that pixel values in the skip macroblock can be predicted by using motion vectors of spatially adjacent blocks. Therefore, prediction efficiency increases.

    摘要翻译: 提供一种通过将跳过宏块划分为更小的跳跃子块并使用从与跳过子块相邻的块的运动矢量预测的预测运动矢量来对跳过宏块进行编码的方法和装置,以及用于对跳过宏块进行解码的方法和装置。 因此,通过将表示跳过宏块是否被划分为通常只发送预测模式信息的跳跃宏块的预定二进制信息,可以自适应地应用跳过宏块的划分,或者所有跳过宏块可以被划分为要被处理的子块 ,使得可以通过使用空间相邻块的运动矢量来预测跳跃宏块中的像素值。 因此,预测效率提高。

    IMAGE INTERPOLATION METHOD AND APPARATUS
    48.
    发明申请
    IMAGE INTERPOLATION METHOD AND APPARATUS 有权
    图像插值方法和装置

    公开(公告)号:US20130156346A1

    公开(公告)日:2013-06-20

    申请号:US13809364

    申请日:2011-07-11

    申请人: Tammy Lee Woo-Jin Han

    发明人: Tammy Lee Woo-Jin Han

    IPC分类号: G06T3/40

    摘要: An image interpolation method and apparatus are provided. The image interpolation method includes: selecting different interpolation filters according to locations of sub pixels between integer pixels; and generating sub pixel values at the locations of the sub pixels using the selected interpolation filters.

    摘要翻译: 提供了一种图像插值方法和装置。 图像插值方法包括:根据整数像素之间的子像素的位置来选择不同的插值滤波器; 以及使用所选择的内插滤波器在子像素的位置处生成子像素值。

    Method and apparatus for encoding and decoding an image using a reference picture
    49.
    发明授权
    Method and apparatus for encoding and decoding an image using a reference picture 失效
    使用参考图像对图像进行编码和解码的方法和装置

    公开(公告)号:US08358697B2

    公开(公告)日:2013-01-22

    申请号:US12395731

    申请日:2009-03-02

    摘要: A method and apparatus for encoding and decoding an image by performing motion prediction and compensation on pictures in a group of pictures by selectively using a high-quality key picture that is previously encoded and restored, and a second picture that is previously encoded and restored. The method of encoding an image improves the prediction efficiency of an image by storing a key picture, which is encoded and restored to a high quality by reducing a loss caused by a quantization error using a small quantization coefficient, in a first storage unit and storing a previously encoded and restored second picture in a second storage unit, and then performing motion prediction and compensation by selectively using the key picture stored in the first storage unit and the second picture stored in the second storage unit while encoding a next picture in a group of pictures.

    摘要翻译: 通过选择性地使用先前被编码和恢复的高质量关键图像,以及先前编码和恢复的第二图像,对图像组中的图像执行运动预测和补偿来对图像进行编码和解码的方法和装置。 编码图像的方法通过在第一存储单元中存储通过减少由量化误差引起的量化误差造成的损失而被编码并恢复为高质量的关键图像来提高图像的预测效率,并存储 在第二存储单元中先前编码并恢复的第二图像,然后通过选择性地使用存储在第一存储单元中的密钥图像和存储在第二存储单元中的第二图像来对组中的下一图像进行编码来执行运动预测和补偿 的图片。

    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BY USING SUB-PIXEL-BASED MOTION PREDICTION
    50.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BY USING SUB-PIXEL-BASED MOTION PREDICTION 失效
    使用基于子像素的运动预测编码和解码图像的方法和装置

    公开(公告)号:US20100226434A1

    公开(公告)日:2010-09-09

    申请号:US12397484

    申请日:2009-03-04

    申请人: Tammy Lee Woo-jin Han

    发明人: Tammy Lee Woo-jin Han

    IPC分类号: H04N7/26

    摘要: Provided are a method and apparatus for encoding an image by using sub-pixel-based motion prediction and a method and apparatus for decoding an image by using sub-pixel-based motion prediction. The method of encoding an image includes determining weights for respective low-precision sub-pixels for interpolation between the low-precision sub-pixels, determining an interpolation direction for the low-precision sub-pixels based on a position of a high-precision sub-pixel between the low-precision sub-pixels, and performing motion prediction in units of high-precision sub-pixels determined by interpolation which applies the interpolation direction and the weights to the low-precision sub-pixels.

    摘要翻译: 提供了一种通过使用基于子像素的运动预测对图像进行编码的方法和装置,以及通过使用基于子像素的运动预测来对图像进行解码的方法和装置。 对图像进行编码的方法包括确定用于在低精度子像素之间插值的各个低精度子像素的权重,基于高精度子像素的位置确定低精度子像素的插值方向 并且以通过将插值方向和权重应用于低精度子像素的内插来执行以高精度子像素为单位的运动预测。