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    IMAGE CODING APPARATUS AND IMAGE DECODING APPARATUS
    3.
    发明申请
    IMAGE CODING APPARATUS AND IMAGE DECODING APPARATUS 有权
    图像编码装置和图像解码装置

    公开(公告)号：US20120189217A1

    公开(公告)日：2012-07-26

    申请号：US13437315

    申请日：2012-04-02

    申请人： Steffen WITTMANN ,  Thomas Wedi

    发明人： Steffen WITTMANN ,  Thomas Wedi

    IPC分类号： G06K9/36

    CPC分类号： H04N19/117 ,  H04N19/14 ,  H04N19/154 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/177 ,  H04N19/46 ,  H04N19/50 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86

    摘要： Provide is an image decoding apparatus which reliably prevents deterioration of the image quality of decoded images which have been previously coded. An image decoding apparatus (200) includes: an inverse quantization and inverse orthogonal transform unit (220) and an adder (230) which decode a coded image included in a coded stream (Str) to generate a decoded image (Rc); an entropy decoding unit (210) which extracts cross-correlation data (p) which indicates a cross-correlation between the decoded image (Rc) and an image which corresponds to the decoded image and has not yet been coded; and an adaptive filter (240) which computes a filter parameter (w) based on the extracted cross-correlation data (p), and performs a filtering operation on the decoded image (Rc) according to the filter parameter (w).

    摘要翻译： 提供一种可靠地防止已经被编码的解码图像的图像质量劣化的图像解码装置。 一种图像解码装置（200）包括：对包含在编码流（Str）中的编码图像进行解码以产生解码图像（Rc）的逆量化和逆正交变换单元（220）和加法器（230） 提取表示解码图像（Rc）与对应于解码图像并且尚未被编码的图像之间的互相关的互相关数据（p）的熵解码单元（210） 以及基于所提取的互相关数据（p）来计算滤波器参数（w）的自适应滤波器（240），并根据滤波器参数（w）对解码图像（Rc）进行滤波处理。

    Moving picture coding apparatus, moving picture decoding apparatus, and stream data
    4.
    发明授权
    Moving picture coding apparatus, moving picture decoding apparatus, and stream data 有权
    运动图像编码装置，运动图像解码装置和流数据

    公开(公告)号：US08204113B2

    公开(公告)日：2012-06-19

    申请号：US11996034

    申请日：2006-06-18

    申请人： Satoshi Kondo ,  Tadamasa Toma ,  Hiroshi Saito ,  Thomas Wedi ,  Steffen Wittmann

    发明人： Satoshi Kondo ,  Tadamasa Toma ,  Hiroshi Saito ,  Thomas Wedi ,  Steffen Wittmann

    IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N14/04 ,  G06K9/36

    CPC分类号： H04N19/188 ,  H04N19/102 ,  H04N19/107 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/436 ,  H04N19/46 ,  H04N19/61

    摘要： A signal separation unit (101) separates an input picture made up of component pictures of RGB, each of which has an equal number of pixels as the input picture, into three component pictures, and outputs the three component pictures. Each of coding units (102 to 104) codes one of the component pictures into an intra-picture prediction coded picture or an inter-picture prediction coded picture, and outputs a bit stream corresponding to the component picture. A bit stream multiplexing unit (105) multiplexes three bit streams outputted from the three coding units into one bit stream, and outputs the bit stream. Each of the coding units (102), (103) and (104) determines a prediction method for the component picture at the time of coding.

    摘要翻译： 信号分离单元（101）将由与输入图像相等数目的像素的RGB分量图像构成的输入图像分离成三分量图像，并输出三分量图像。 每个编码单元（102至104）将分量图像之一编码成图像内预测编码图像或帧间预测编码图像，并输出与分量图像相对应的比特流。 比特流复用单元（105）将从三个编码单元输出的三比特流复用为一个比特流，并输出比特流。 编码单元（102），（103）和（104）中的每一个确定编码时的分量图像的预测方法。

    PIXEL ADAPTIVE INTRA SMOOTHING
    5.
    发明申请
    PIXEL ADAPTIVE INTRA SMOOTHING 有权
    像素自适应平滑

    公开(公告)号：US20120140821A1

    公开(公告)日：2012-06-07

    申请号：US12962125

    申请日：2010-12-07

    申请人： Virginie Drugeon ,  Thomas Wedi ,  Matthias Narroschke

    发明人： Virginie Drugeon ,  Thomas Wedi ,  Matthias Narroschke

    IPC分类号： H04N7/32

    CPC分类号： H04N19/82 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/182 ,  H04N19/46 ,  H04N19/593

    摘要： The present invention relates to spatial prediction of pixels of a block, the block being a block of a digital image. In particular, for a block pixel at least one reference pixel(s) is selected and out of the selected reference pixel(s), the block pixel is predicted. In particular, the prediction of the block pixel is performed depending on the distance of this pixel to the reference pixel(s) from which it is to be predicted.

    摘要翻译： 本发明涉及块的像素的空间预测，该块是数字图像的块。 特别地，对于块像素，选择至少一个参考像素并且从所选择的参考像素中选出一个或多个参考像素，则预测块像素。 特别地，根据该像素与要预测的参考像素的距离来执行块像素的预测。

    IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, INTEGRATED CIRCUIT AND PROGRAM
    6.
    发明申请
    IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, INTEGRATED CIRCUIT AND PROGRAM 审中-公开
    图像编码方法，图像解码方法，图像编码装置，图像解码装置，集成电路和程序

    公开(公告)号：US20110206135A1

    公开(公告)日：2011-08-25

    申请号：US13126278

    申请日：2009-10-22

    申请人： Virginie Drugeon ,  Thomas Wedi ,  Matthias Narroschke

    发明人： Virginie Drugeon ,  Thomas Wedi ,  Matthias Narroschke

    IPC分类号： H04N7/26

    CPC分类号： H04N19/136 ,  H04N19/129 ,  H04N19/132 ,  H04N19/176 ,  H04N19/61

    摘要： Images are coded with higher efficiency while maintaining the same image quality. An image coding method of coding an image on a block basis, including: transforming (S1201) a two-dimensional array of pixel values of a current block to be encoded, into a two-dimensional array of transform coefficients; determining (S1202), depending on the two-dimensional array of the transform coefficients, a scan order for scanning the transform coefficients of the two-dimensional array; scanning (S1203) the transform coefficients of the two-dimensional array sequentially according to the scan order, to generate a one-dimensional array of the transform coefficients; and coding (S1204) the transform coefficients of the one-dimensional array.

    摘要翻译： 图像以更高的效率进行编码，同时保持相同的图像质量。 一种以块为单位编码图像的图像编码方法，包括：将要编码的当前块的像素值的二维阵列变换为（S1201）为变换系数的二维阵列; 根据变换系数的二维阵列确定（S1202）用于扫描二维阵列的变换系数的扫描顺序; 根据扫描顺序依次扫描（S1203）二维阵列的变换系数，以产生变换系数的一维阵列; 和编码（S1204）一维阵列的变换系数。

    IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, PROGRAM AND INTEGRATED CIRCUIT
    7.
    发明申请
    IMAGE CODING METHOD, IMAGE DECODING METHOD, IMAGE CODING APPARATUS, IMAGE DECODING APPARATUS, PROGRAM AND INTEGRATED CIRCUIT 审中-公开
    图像编码方法，图像解码方法，图像编码装置，图像解码装置，程序和集成电路

    公开(公告)号：US20100208989A1

    公开(公告)日：2010-08-19

    申请号：US12676449

    申请日：2009-07-07

    申请人： Matthias Narroschke ,  Thomas Wedi

    发明人： Matthias Narroschke ,  Thomas Wedi

    IPC分类号： G06K9/36

    CPC分类号： H04N1/646 ,  H04N19/186 ,  H04N19/46 ,  H04N19/59

    摘要： An image coding method includes transforming a color space of a color image from a first color space to a second color space to generate a color space transformed color image (S12), removing part of samples included in the color space transformed color image to generate a subsampled color image (S13), coding the subsampled color image to generate a coded color image (S14), determining an upsampling coefficient used for upsampling (S16), determining a color space inverse transform coefficient for inversely transforming the color space from the second color space to the first color space (S17), and outputting the coded color image, the upsampling coefficient, and the color space inverse transform coefficient (S19).

    摘要翻译： 图像编码方法包括将彩色图像的颜色空间从第一颜色空间变换为第二颜色空间以生成颜色空间变换的彩色图像（S12），去除包括在颜色空间变换的彩色图像中的部分样本，以生成 对采样的彩色图像进行编码以生成编码的彩色图像（S14），确定用于上采样的上采样系数（S16），确定用于从第二颜色逆变换颜色空间的色空间逆变换系数 空间到第一颜色空间（S17），并输出编码的彩色图像，上采样系数和色空间逆变换系数（S19）。

    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM AND SEMICONDUCTOR INTEGRATED CIRCUIT
    8.
    发明申请
    IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, PROGRAM AND SEMICONDUCTOR INTEGRATED CIRCUIT 有权
    图像处理装置，图像处理方法，程序和半导体集成电路

    公开(公告)号：US20090274380A1

    公开(公告)日：2009-11-05

    申请号：US12293505

    申请日：2007-03-20

    申请人： Thomas Wedi

    发明人： Thomas Wedi

    IPC分类号： G06K9/36 ,  G06K9/40

    CPC分类号： G06T9/00 ,  G06T3/4007 ,  G06T5/002 ,  G06T2200/12

    摘要： An image processing apparatus according to the present invention includes a filter unit which filters image signals; a sampling unit which generates first digital image signals having a first resolution by sampling the filtered image signals at a predetermined sampling frequency; and a super-resolution unit which reconstructs a second digital image signal having a second resolution which is higher than the first resolution by performing super-resolution on the first digital image signals generated by the sampling unit, wherein the filter unit passes frequency components corresponding to or lower than the Nyquist frequency which is half the sampling frequency, and passes a part of frequency components within a range from the Nyquist frequency to the highest frequency which can be represented by the second resolution.

    摘要翻译： 根据本发明的图像处理装置包括：滤波器单元，其对图像信号进行滤波; 采样单元，其通过以预定采样频率对滤波图像信号进行采样来产生具有第一分辨率的第一数字图像信号; 以及超分辨率单元，其通过对由所述采样单元生成的所述第一数字图像信号执行超分辨率来重构具有高于所述第一分辨率的第二分辨率的第二数字图像信号，其中所述滤波器单元将对应于 或低于采样频率的一半的奈奎斯特频率，并将来自奈奎斯特频率的一部分频率分量通过可由第二分辨率表示的最高频率。

    Encoding and decoding of video images based on a quantization with an adaptive dead-zone size
    9.
    发明申请
    Encoding and decoding of video images based on a quantization with an adaptive dead-zone size 审中-公开
    基于具有自适应死区大小的量化的视频图像的编码和解码

    公开(公告)号：US20070160138A1

    公开(公告)日：2007-07-12

    申请号：US10587202

    申请日：2004-11-30

    申请人： Thomas Wedi ,  Steffen Wittmann

    发明人： Thomas Wedi ,  Steffen Wittmann

    IPC分类号： H04N11/04

    CPC分类号： H04N19/00 ,  H04N19/126 ,  H04N19/136 ,  H04N19/18 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61

    摘要： The present invention enables to control the encoding of film grain information without adversely affecting the over-all coding efficiency of the encoding process of video data. For this purpose, a control of the size of the quantization interval for the lowest transform coefficient values is separated from a control of fitting the quantization interval and the quantized value to a probability distribution of the transform coefficient values. This is accomplished by providing a dead-zone parameter to be taken into account by the quantization process and the de-quantization process.

    摘要翻译： 本发明能够控制胶片颗粒信息的编码，而不会不利地影响视频数据的编码处理的全部编码效率。 为此，将用于最低变换系数值的量化间隔的大小的控制与将量化间隔和量化值拟合为变换系数值的概率分布的控制分离。 这是通过提供通过量化处理和去量化处理来考虑的死区参数来实现的。