Image coding method and apparatus, and image decoding method and apparatus
    1.
    发明申请
    Image coding method and apparatus, and image decoding method and apparatus 有权
    图像编码方法和装置,以及图像解码方法和装置

    公开(公告)号:US20070230658A1

    公开(公告)日:2007-10-04

    申请号:US11762456

    申请日:2007-06-13

    IPC分类号: G01N23/04

    摘要: In an image coding apparatus 100, a ROI setting unit 20 sets a ROI region in an image. An entropy coding unit 14 entropy-codes the image. A ROI information coding unit 24 encodes information for specifying the ROI region. A codestream generator 16 generates a codestream in a manner that the coded image and the coded information are explicitly included in the codestream. When a plurality of ROI regions are set in the image, the information may include a degree of priority.

    摘要翻译: 在图像编码装置100中,ROI设定部20设定图像的ROI区域。 熵编码单元14对图像进行熵编码。 ROI信息编码单元24对用于指定ROI区域的信息进行编码。 码流发生器16以编码图像和编码信息明确地包括在码流中的方式生成码流。 当在图像中设置多个ROI区域时,信息可以包括优先级。

    Image coding method and apparatus, and image decoding method and apparatus
    2.
    发明授权
    Image coding method and apparatus, and image decoding method and apparatus 有权
    图像编码方法和装置,以及图像解码方法和装置

    公开(公告)号:US08150173B2

    公开(公告)日:2012-04-03

    申请号:US11762456

    申请日:2007-06-13

    IPC分类号: G06K9/36 G06K9/46

    摘要: In an image coding apparatus, a ROI setting unit sets a ROI region in an image. An entropy coding unit entropy-codes the image. A ROI information coding unit encodes information for specifying the ROI region. A codestream generator generates a codestream in a manner that the coded image and the coded information are explicitly included in the codestream. When a plurality of ROI regions are set in the image, the information may include a degree of priority.

    摘要翻译: 在图像编码装置中,ROI设定部设定图像的ROI区域。 熵编码单元对图像进行熵编码。 ROI信息编码单元对用于指定ROI区域的信息进行编码。 码流发生器以编码图像和编码信息明确地包括在码流中的方式生成码流。 当在图像中设置多个ROI区域时,信息可以包括优先级。

    IMAGE CODING METHOD AND APPARATUS, AND IMAGE DECODING METHOD AND APPARATUS
    3.
    发明申请
    IMAGE CODING METHOD AND APPARATUS, AND IMAGE DECODING METHOD AND APPARATUS 审中-公开
    图像编码方法和装置,以及图像解码方法和装置

    公开(公告)号:US20090208122A1

    公开(公告)日:2009-08-20

    申请号:US11718211

    申请日:2005-10-25

    IPC分类号: G06K9/36

    摘要: In an image coding apparatus 100, a ROI setting unit sets a ROI region in an image. A ROI information coding unit 24 encodes information for specifying the ROI region by referring to difference information between frames. An entropy coding unit 14 entropy-codes the image. A codestream generator 16 generates a codestream in a manner that the coded image and the coded information for specifying a region of interest are included in the codestream.

    摘要翻译: 在图像编码装置100中,ROI设定单元设定图像中的ROI区域。 ROI信息编码单元24通过参考帧之间的差分信息对用于指定ROI区域的信息进行编码。 熵编码单元14对图像进行熵编码。 码流发生器16以编码图像和用于指定感兴趣区域的编码信息被包括在码流中的方式生成码流。

    IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, IMAGE DISPLAY APPARATUS AND IMAGE PROCESSING APPARATUS
    4.
    发明申请
    IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, IMAGE DISPLAY APPARATUS AND IMAGE PROCESSING APPARATUS 有权
    图像编码装置,图像解码装置,图像显示装置和图像处理装置

    公开(公告)号:US20110206286A1

    公开(公告)日:2011-08-25

    申请号:US13029748

    申请日:2011-02-17

    IPC分类号: G06K9/36

    摘要: A wavelet transform unit performs a wavelet transform on original images and a quantization unit quantizes wavelet transform coefficients. A ROI selector selects a region of interest or regions of interest in the original image, and a ROI mask generator generates ROI masks with which the wavelet transform coefficients (which are also called ROI transform coefficients) corresponding to the regions of interest are specified. By referring to the ROI masks, a lower-bit zero substitution unit substitutes low-order bits of non-ROI transform coefficients with zeros. An entropy coding unit entropy-codes the wavelet transform coefficients sequentially from high-order bit-planes, after the substitution. A coded data generator turns coded data into streams together with parameters and then outputs coded images.

    摘要翻译: 小波变换单元对原始图像执行小波变换,量化单元量化小波变换系数。 ROI选择器在原始图像中选择感兴趣区域或感兴趣区域,并且ROI掩码生成器生成与掩盖了感兴趣区域对应的小波变换系数(也称为ROI变换系数)的ROI掩模。 通过参考ROI掩模,较低位零取代单元用零代替非ROI变换系数的低阶位。 熵编码单元在替代之后从高阶位平面顺序地对小波变换系数进行熵编码。 编码数据发生器将编码数据与参数一起转换成流,然后输出编码图像。

    Image transformation apparatus and method
    5.
    发明授权
    Image transformation apparatus and method 失效
    图像变换装置及方法

    公开(公告)号:US07197191B2

    公开(公告)日:2007-03-27

    申请号:US10390909

    申请日:2003-03-19

    IPC分类号: G06K9/46 G06K9/36

    CPC分类号: H03H17/0202 G06T9/007

    摘要: An SRAM is used as a pixel buffer which stores a partial image region copied from a frame buffer. A vertical filter reads a pair of target pixels arranged in a vertical direction from the pixel buffer and performs a filtering process of a discrete wavelet transform in the vertical direction. An intermediate result obtained in the filtering process is stored in a register. The vertical filter uses the intermediate result in filtering the next two pixels. A horizontal filter receives two transformed results from the vertical filter and performs a filtering process on the transformed results in the horizontal direction. The intermediate results obtained in the horizontal filtering are also stored in a register and utilized in the next filtering.

    摘要翻译: SRAM用作存储从帧缓冲器复制的部分图像区域的像素缓冲器。 垂直滤波器从像素缓冲器读取沿垂直方向布置的一对目标像素,并且在垂直方向上执行离散小波变换的滤波处理。 在滤波处理中获得的中间结果存储在寄存器中。 垂直滤波器使用中间结果来过滤接下来的两个像素。 水平滤波器从垂直滤波器接收两个变换结果,并对水平方向上的变换结果执行滤波处理。 在水平滤波中获得的中间结果也存储在寄存器中,并用于下一次滤波。

    Image coding apparatus, image decoding apparatus, image display apparatus and image processing apparatus
    6.
    发明申请
    Image coding apparatus, image decoding apparatus, image display apparatus and image processing apparatus 有权
    图像编码装置,图像解码装置,图像显示装置以及图像处理装置

    公开(公告)号:US20050175251A1

    公开(公告)日:2005-08-11

    申请号:US11052094

    申请日:2005-02-08

    摘要: A wavelet transform unit performs a wavelet transform on original images and a quantization unit quantizes wavelet transform coefficients. A ROI selector selects a region of interest or regions of interest in the original image, and a ROI mask generator generates ROI masks with which the wavelet transform coefficients (which are also called ROI transform coefficients) corresponding to the regions of interest are specified. By referring to the ROI masks, a lower-bit zero substitution unit substitutes low-order bits of non-ROI transform coefficients with zeros. An entropy coding unit entropy-codes the wavelet transform coefficients sequentially from high-order bit-planes, after the substitution. A coded data generator turns coded data into streams together with parameters and then outputs coded images.

    摘要翻译: 小波变换单元对原始图像执行小波变换,量化单元量化小波变换系数。 ROI选择器在原始图像中选择感兴趣区域或感兴趣区域,并且ROI掩码生成器生成与掩盖了感兴趣区域对应的小波变换系数(也称为ROI变换系数)的ROI掩模。 通过参考ROI掩模,较低位零取代单元用零代替非ROI变换系数的低阶位。 熵编码单元在替代之后从高阶位平面顺序地对小波变换系数进行熵编码。 编码数据发生器将编码数据与参数一起转换成流,然后输出编码图像。

    Image coding apparatus, image decoding apparatus, image display apparatus and image processing apparatus
    7.
    发明授权
    Image coding apparatus, image decoding apparatus, image display apparatus and image processing apparatus 有权
    图像编码装置,图像解码装置,图像显示装置以及图像处理装置

    公开(公告)号:US08326058B2

    公开(公告)日:2012-12-04

    申请号:US13029748

    申请日:2011-02-17

    IPC分类号: G06K9/36

    摘要: A wavelet transform unit performs a wavelet transform on original images and a quantization unit quantizes wavelet transform coefficients. A ROI selector selects a region of interest or regions of interest in the original image, and a ROI mask generator generates ROI masks with which the wavelet transform coefficients (which are also called ROI transform coefficients) corresponding to the regions of interest are specified. By referring to the ROI masks, a lower-bit zero substitution unit substitutes low-order bits of non-ROI transform coefficients with zeros. An entropy coding unit entropy-codes the wavelet transform coefficients sequentially from high-order bit-planes, after the substitution. A coded data generator turns coded data into streams together with parameters and then outputs coded images.

    摘要翻译: 小波变换单元对原始图像执行小波变换,量化单元量化小波变换系数。 ROI选择器在原始图像中选择感兴趣区域或感兴趣区域,并且ROI掩码生成器生成与掩盖了感兴趣区域对应的小波变换系数(也称为ROI变换系数)的ROI掩模。 通过参考ROI掩模,较低位零取代单元用零代替非ROI变换系数的低阶位。 熵编码单元在替代之后从高阶位平面顺序地对小波变换系数进行熵编码。 编码数据发生器将编码数据与参数一起转换成流,然后输出编码图像。

    Image coding apparatus, image decoding apparatus, image display apparatus and image processing apparatus
    9.
    发明授权
    Image coding apparatus, image decoding apparatus, image display apparatus and image processing apparatus 有权
    图像编码装置,图像解码装置,图像显示装置以及图像处理装置

    公开(公告)号:US08005309B2

    公开(公告)日:2011-08-23

    申请号:US11052094

    申请日:2005-02-08

    IPC分类号: G06K9/46

    摘要: A wavelet transform unit performs a wavelet transform on original images and a quantization unit quantizes wavelet transform coefficients. A ROI selector selects a region of interest or regions of interest in the original image, and a ROI mask generator generates ROI masks with which the wavelet transform coefficients (which are also called ROI transform coefficients) corresponding to the regions of interest are specified. By referring to the ROI masks, a lower-bit zero substitution unit substitutes low-order bits of non-ROI transform coefficients with zeros. An entropy coding unit entropy-codes the wavelet transform coefficients sequentially from high-order bit-planes, after the substitution. A coded data generator turns coded data into streams together with parameters and then outputs coded images.

    摘要翻译: 小波变换单元对原始图像执行小波变换,量化单元量化小波变换系数。 ROI选择器在原始图像中选择感兴趣区域或感兴趣区域,并且ROI掩码生成器生成与掩盖了感兴趣区域对应的小波变换系数(也称为ROI变换系数)的ROI掩模。 通过参考ROI掩模,较低位零取代单元用零代替非ROI变换系数的低阶位。 熵编码单元在替代之后从高阶位平面顺序地对小波变换系数进行熵编码。 编码数据发生器将编码数据与参数一起转换成流,然后输出编码图像。

    Image Coding Method and Apparatus, and Image Decoding Method and Apparatus
    10.
    发明申请
    Image Coding Method and Apparatus, and Image Decoding Method and Apparatus 有权
    图像编码方法和装置,以及图像解码方法和装置

    公开(公告)号:US20080075373A1

    公开(公告)日:2008-03-27

    申请号:US11718291

    申请日:2005-10-25

    IPC分类号: G06K9/36

    摘要: In an image coding apparatus 100, a ROI setting unit 20 sets a ROI region in an image. An entropy coding unit 14 entropy-codes the image. A ROI information coding unit 24 encodes information for specifying the ROI region. A codestream generator 16 generates a codestream in a manner that the coded image and the coded information are explicitly included in the codestream. When a plurality of ROI regions are set in the image, the information may include a degree of priority.

    摘要翻译: 在图像编码装置100中,ROI设定部20设定图像的ROI区域。 熵编码单元14对图像进行熵编码。 ROI信息编码单元24对用于指定ROI区域的信息进行编码。 码流发生器16以编码图像和编码信息明确地包括在码流中的方式生成码流。 当在图像中设置多个ROI区域时,信息可以包括优先级。