ENTROPY ENCODING AND DECODING METHOD AND APPARATUS USING LEAST SIGNIFICANT BIT
    1.
    发明申请
    ENTROPY ENCODING AND DECODING METHOD AND APPARATUS USING LEAST SIGNIFICANT BIT 审中-公开
    熵编码和解码方法和使用最小重要位的设备

    公开(公告)号:US20090279797A1

    公开(公告)日:2009-11-12

    申请号:US12426593

    申请日:2009-04-20

    IPC分类号: G06K9/36

    CPC分类号: H04N19/86 H04N19/91

    摘要: Provided are entropy encoding and decoding methods. The entropy encoding method includes receiving residual coefficients obtained by frequency converting a residual image, determining a first bit string about residual coefficients having nonzero levels from among the received residual coefficients, determining at least one lower bit, including a least significant bit of the first bit string, from the first bit string, and determining a second bit string obtained by bit-shifting the first bit string to the right by the number of lower bits.

    摘要翻译: 提供了熵编码和解码方法。 熵编码方法包括:接收通过频率转换残差图像获得的残差系数,从接收的残差系数中确定关于具有非零电平的残余系数的第一位串,确定至少一个低位,包括第一位的最低有效位 字符串,并且确定通过将第一位串向右移位低位数获得的第二位串。

    METHOD AND APPARATUS FOR CONVERTING BIT-PLANE IMAGE, AND METHOD AND APPARATUS FOR INVERSE-CONVERTING BIT-PLANE IMAGE
    2.
    发明申请
    METHOD AND APPARATUS FOR CONVERTING BIT-PLANE IMAGE, AND METHOD AND APPARATUS FOR INVERSE-CONVERTING BIT-PLANE IMAGE 失效
    用于转换平面图像的方法和装置,以及用于反转转换平面图像的方法和装置

    公开(公告)号:US20090279803A1

    公开(公告)日:2009-11-12

    申请号:US12420409

    申请日:2009-04-08

    IPC分类号: G06K9/36

    CPC分类号: H04N19/40 H04N19/61 H04N19/63

    摘要: Provided are methods and apparatuses for converting a lower bit-plane image, and methods and apparatuses for inverse-converting the lower bit-plane image, which increase the correlation of the lower bit-plane image. According to the method of converting a lower bit-plane image, pixels of the lower bit-plane image are sequentially added or subtracted so as to generate a converted lower bit-plane image. Accordingly, the lower bit-plane image has higher regularity, and thus the efficiency of image processing using the lower bit-plane image is improved.

    摘要翻译: 提供了用于转换较低位平面图像的方法和装置,以及用于逆变换低位平面图像的方法和装置,其增加了较低位平面图像的相关性。 根据转换较低位平面图像的方法,顺序地添加或减去较低位平面图像的像素,以产生转换的较低位平面图像。 因此,较低的位平面图像具有较高的规则性,因此提高了使用较低位平面图像的图像处理的效率。

    METHOD AND APPARATUS TO ENCODE AND DECODE HALFTONE IMAGE
    3.
    发明申请
    METHOD AND APPARATUS TO ENCODE AND DECODE HALFTONE IMAGE 有权
    编码和解码黑板图像的方法和装置

    公开(公告)号:US20090169123A1

    公开(公告)日:2009-07-02

    申请号:US12170875

    申请日:2008-07-10

    IPC分类号: G06K9/80

    CPC分类号: H04N1/4105

    摘要: A method to encode and decode a halftone image such that the halftone image is efficiently compressed and decoded by using pattern characteristics of the halftone image includes determining different template shapes according to characteristics of the halftone image, compressing the halftone image based on determined template shape information, compressing the template shape information, and generating the compressed halftone image and the compressed template shape information as a bitstream.

    摘要翻译: 一种对半色调图像进行编码和解码的方法,使得通过使用半色调图像的图案特征有效地压缩和解码半色调图像,包括根据半色调图像的特性来确定不同的模板形状,基于确定的模板形状信息来压缩半色调图像 压缩模板形状信息,以及生成压缩半色调图像和压缩模板形状信息作为比特流。

    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BASED ON SKIP MODE
    4.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BASED ON SKIP MODE 有权
    用于基于跳跃模式编码和解码图像的方法和装置

    公开(公告)号:US20110064324A1

    公开(公告)日:2011-03-17

    申请号:US12883758

    申请日:2010-09-16

    IPC分类号: G06K9/36

    摘要: A method and apparatus for encoding and decoding an image. The encoding method includes: deciding whether pixel values of a first block of an image are identical to pixel values of a second block of the image that is encoded prior to the first block in a current slice of the image, and determining whether to encode the first block in a first mode according to the deciding; and selectively encoding the first block in the first mode based on the determining, wherein the first mode is a mode for encoding information representing that the first block is encoded in the first mode, instead of encoding the pixel values of the first block, when the first block is identical or similar to the second block.

    摘要翻译: 一种用于对图像进行编码和解码的方法和装置。 编码方法包括:判定图像的第一块的像素值是否与在图像的当前片段中的第一块之前编码的图像的第二块的像素值相同,并且确定是否对 根据决定第一模式第一块; 以及基于所述确定在所述第一模式中选择性地编码所述第一块,其中所述第一模式是用于编码表示所述第一块在所述第一模式中被编码的信息的模式,而不是对所述第一块的像素值进行编码, 第一块与第二块相同或相似。

    METHOD AND APPARATUS FOR GENERATING VIDEO PACKETS, METHOD AND APPARATUS FOR RESTORING VIDEO
    7.
    发明申请
    METHOD AND APPARATUS FOR GENERATING VIDEO PACKETS, METHOD AND APPARATUS FOR RESTORING VIDEO 有权
    用于生成视频分组的方法和装置,用于恢复视频的方法和装置

    公开(公告)号:US20110249730A1

    公开(公告)日:2011-10-13

    申请号:US13082929

    申请日:2011-04-08

    IPC分类号: H04N7/48

    CPC分类号: H04N19/593

    摘要: A method and apparatus for generating video packets and a method and apparatus for restoring video are provided. The method of generating video packets includes: generating at least one pixel block consisting of at least one reference pixel and a plurality of neighboring pixels adjacent to the at least one reference pixel from pixels of a video frame; replacing pixel values of the neighboring pixels in the at least one pixel block with pixel difference values, which are difference values between a pixel value of one of pixels adjacent to the neighboring pixels and the pixel values of the neighboring pixels; generating packets so that a pixel value of the at least one reference pixel and the pixel difference values of the neighboring pixels are allocated to different packets according to positions of the pixels; and performing entropy coding of some of the packets including the pixel difference values of the neighboring pixels.

    摘要翻译: 提供了一种用于产生视频分组的方法和装置以及用于恢复视频的方法和装置。 产生视频分组的方法包括:从视频帧的像素生成由与至少一个参考像素相邻的至少一个参考像素和多个相邻像素组成的至少一个像素块; 用像素差值代替所述至少一个像素块中的相邻像素的像素值,所述像素差值是与相邻像素相邻的一个像素的像素值与相邻像素的像素值之间的差值; 生成分组,使得根据像素的位置将所述至少一个参考像素的像素值和相邻像素的像素差值分配给不同的分组; 并执行包括相邻像素的像素差值的一些分组的熵编码。

    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BASED ON SKIP MODE
    8.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BASED ON SKIP MODE 有权
    用于基于跳跃模式编码和解码图像的方法和装置

    公开(公告)号:US20110064131A1

    公开(公告)日:2011-03-17

    申请号:US12884462

    申请日:2010-09-17

    IPC分类号: H04N7/30 H04N7/26

    摘要: A method and apparatus for decoding an image are provided. The method includes: decoding information representing that a first block of the image has been encoded in a first mode; and reconstructing the first block by setting pixel values of the first block to be identical with pixel values of a second block of the image that is adjacent to the first block and has been decoded prior to the first block, wherein the first mode is a mode for encoding information representing that the first block is identical or similar to the second block and has been encoded in the first mode, instead of encoding the pixel values of the first block.

    摘要翻译: 提供了用于解码图像的方法和装置。 该方法包括:解码表示图像的第一块已经以第一模式被编码的信息; 以及通过将所述第一块的像素值设置为与所述第一块相邻的所述图像的第二块的像素值相同并且在所述第一块之前已经被解码来重建所述第一块,其中所述第一模式是模式 用于编码表示第一块与第二块相同或相似的信息,并且已经以第一模式被编码,而不是对第一块的像素值进行编码。