Scalable video coding method and apparatus based on multiple layers
    1.
    发明申请
    Scalable video coding method and apparatus based on multiple layers 审中-公开
    基于多层次的可扩展视频编码方法和装置

    公开(公告)号:US20070121723A1

    公开(公告)日:2007-05-31

    申请号:US11585981

    申请日:2006-10-25

    IPC分类号: H04N7/12 H04N11/04

    摘要: A scalable video encoding method and apparatus based on a plurality of layers are provided. The video encoding method for encoding a video sequence having a plurality of layers includes coding a residual of a first block existing in a first layer among the plurality of layers; recording the coded residual of the first block on a non-discardable region of a bitstream, if a second block is coded using the first block, the second block existing in a second layer among the plurality of layers and corresponding to the first block; and recording the coded residual of the first block on a discardable region of the bitstream, if a second block is coded without using the first block.

    摘要翻译: 提供了一种基于多层的可分级视频编码方法和装置。 用于对具有多个层的视频序列进行编码的视频编码方法包括对存在于多个层中的第一层中的第一块的残差进行编码; 如果使用所述第一块对所述第二块进行编码,则所述第二块存在于所述多个层中的第二层中并对应于所述第一块;将所述第一块的编码残差记录在比特流的不可丢弃区域上; 以及如果第二块被编码而不使用所述第一块,则将所述第一块的编码残差记录在所述比特流的可丢弃区域上。

    Dequantization method and apparatus, and video decoding method and apparatus using the dequantization method
    2.
    发明申请
    Dequantization method and apparatus, and video decoding method and apparatus using the dequantization method 审中-公开
    去量化方法和装置,以及使用去量化方法的视频解码方法和装置

    公开(公告)号:US20070019879A1

    公开(公告)日:2007-01-25

    申请号:US11487986

    申请日:2006-07-18

    IPC分类号: G06K9/00

    摘要: A dequantization method and an apparatus in which restored values for original values are obtained by dequantizing quantization level values generated when the original values are quantized. The dequantization method includes updating a histogram by accumulating histogram counts for the quantization level values, estimating a distribution function of the original values based on the histogram, and obtaining the restored values for the quantization level values from the distribution function.

    摘要翻译: 逆量化方法和装置,其中通过对量化原始值时产生的量化级别值进行去量化来获得原始值的恢复值。 逆量化方法包括通过累积量化级值的直方图计数来更新直方图,基于直方图估计原始值的分布函数,以及从分布函数获得量化级值的恢复值。

    Method and apparatus for entropy encoding/decoding
    4.
    发明授权
    Method and apparatus for entropy encoding/decoding 失效
    用于熵编码/解码的方法和装置

    公开(公告)号:US08345752B2

    公开(公告)日:2013-01-01

    申请号:US11780990

    申请日:2007-07-20

    IPC分类号: H04N7/12

    摘要: A method and apparatus are provided for performing entropy encoding on a fine granular scalability layer. A method of entropy encoding on a plurality of current coefficients of a quality layer among a plurality of quality layers of an image block divided into the plurality of quality layers, includes determining a coding pass with respect to each of the current coefficients, selecting a context model with respect to each of the current coefficients using at least one lower coefficient corresponding to each of the current coefficients if the coding pass is a refinement pass, and performing arithmetic encoding a group of coefficients having a same selected context model among the current coefficients by using the selected context model.

    摘要翻译: 提供了一种在细粒度可伸缩性层上进行熵编码的方法和装置。 对分割为多个质量层的图像块的多个质量层中的质量层的多个当前系数进行熵编码的方法包括确定关于每个当前系数的编码遍,选择上下文 使用与当前系数中的每一个相对应的至少一个较低系数的当前系数中的每一个的模型,并且在当前系数中对具有相同的所选上下文模型的一组系数进行算术编码, 使用所选择的上下文模型。

    Image filtering method using pseudo-random number filter and apparatus thereof
    6.
    发明授权
    Image filtering method using pseudo-random number filter and apparatus thereof 有权
    使用伪随机数滤波器的图像滤波方法及其装置

    公开(公告)号:US08687910B2

    公开(公告)日:2014-04-01

    申请号:US13379088

    申请日:2010-06-18

    IPC分类号: G06K9/40

    CPC分类号: H04N19/86

    摘要: An image filtering method and apparatus that filter a block of a plane area by using a pseudo-random filter are provided, whereby artifacts generated in image encoding and decoding procedures are removed, the method including: determining a similarity between pixel values of a the first block; and generating a second block by selectively applying a pseudo-random filter on the first block according to a result of based on the determining the determined similarity.

    摘要翻译: 提供了一种通过使用伪随机滤波器来对平面区域的块进行滤波的图像滤波方法和装置,由此去除了在图像编码和解码过程中产生的伪像,该方法包括:确定第一 块; 以及根据确定所确定的相似度的结果,通过在所述第一块上选择性地应用伪随机滤波器来产生第二块。

    METHOD AND APPARATUS FOR ENCODING AND DECODING BASED ON INTER PREDICTION USING IMAGE INPAINTING
    7.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING BASED ON INTER PREDICTION USING IMAGE INPAINTING 审中-公开
    基于使用图像预处理的帧间预测编码和解码的方法和装置

    公开(公告)号:US20100329336A1

    公开(公告)日:2010-12-30

    申请号:US12918688

    申请日:2009-02-20

    IPC分类号: H04N7/50

    摘要: Provided are a method and apparatus for encoding and decoding based on inter prediction. In the method of encoding based on inter prediction, image inpainting is performed by searching for at least one reference picture by using pixels that are adjacent to the boundary between a current block and a previously encoded region of a current picture and are included in the previously encoded region, and the current block is encoded based on a predicted block obtained as the result of performing image inpainting. Accordingly, it is possible to precisely generate a predicted block, thereby improving the compression rate of image encoding.

    摘要翻译: 提供了一种基于帧间预测的编码和解码的方法和装置。 在基于帧间预测的编码方法中,通过使用与当前图像的当前块和先前编码区域之间的边界相邻的像素搜索至少一个参考图像来执行图像修像,并且包括在先前 编码区域,并且基于作为执行图像修复的结果获得的预测块来编码当前块。 因此,可以精确地生成预测块,从而提高图像编码的压缩率。

    Video coding method and apparatus for reducing mismatch between encoder and decoder
    9.
    发明申请
    Video coding method and apparatus for reducing mismatch between encoder and decoder 审中-公开
    用于减少编码器和解码器之间的不匹配的视频编码方法和装置

    公开(公告)号:US20060250520A1

    公开(公告)日:2006-11-09

    申请号:US11402842

    申请日:2006-04-13

    IPC分类号: H04N11/02

    摘要: A method of reducing a mismatch between an encoder and a decoder in motion compensated temporal filtering, and a video coding method and apparatus using the same. The video coding method includes dividing input frames into one final low-frequency frame and at least one high-frequency frame by performing motion compensated temporal filtering on the input frames; encoding the final low-frequency frame and decoding the encoded final low-frequency frame; re-estimating the at least one high-frequency frame using the decoded final low-frequency frame; and encoding the re-estimated high-frequency frame.

    摘要翻译: 一种在运动补偿时间滤波中减少编码器与解码器之间的失配的方法,以及使用该滤波器的视频编码方法和装置。 视频编码方法包括:通过对输入帧进行运动补偿时间滤波,将输入帧划分成一个最终低频帧和至少一个高频帧; 编码最终的低频帧并解码编码的最终低频帧; 使用解码的最终低频帧重新估计至少一个高频帧; 并对重新估计的高频帧进行编码。