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    METHOD AND SYSTEM FOR ENCODING AN IMAGE SIGNAL, ENCODED IMAGE SIGNAL, METHOD AND SYSTEM FOR DECODING AN IMAGE SIGNAL
    5.
    发明申请
    METHOD AND SYSTEM FOR ENCODING AN IMAGE SIGNAL, ENCODED IMAGE SIGNAL, METHOD AND SYSTEM FOR DECODING AN IMAGE SIGNAL 审中-公开
    用于编码图像信号的方法和系统，编码图像信号，用于解码图像信号的方法和系统

    公开(公告)号：US20100074328A1

    公开(公告)日：2010-03-25

    申请号：US12519377

    申请日：2007-12-12

    申请人： Fei Zuo ,  Stijn De Waele

    发明人： Fei Zuo ,  Stijn De Waele

    IPC分类号： H04B1/66

    CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/14 ,  H04N19/172 ,  H04N19/46 ,  H04N19/467

    摘要： An image signal is encoded to reduce artifacts. In an original image frame (F) one or more gradual transition areas (R) are identified, in a decoded frame (F) corresponding one or more gradual transition areas (R) are identified, functional parameters describing the data content of the one or more gradual transition areas of the original image frame are established and position data (P) for the positions of the one or more corresponding areas (R′) in the decoded frame (F′) are established. Replacing the content of the areas R′ in the decoded frame with the reconstructed content of the areas R in the original frame improves the quality of the decoded frame.

    摘要翻译： 编码图像信号以减少伪影。 在原始图像帧（F）中，在对应于一个或多个渐变过渡区域（R）的对应的解码帧（F）中识别一个或多个渐变过渡区域（R），功能参数描述一个或多个渐变过渡区域 建立原始图像帧的更渐进的过渡区域，并且建立解码帧（F'）中的一个或多个对应区域（R'）的位置的位置数据（P）。 用原始帧中的区域R的重构内容替换解码帧中的区域R'的内容提高了解码帧的质量。

    Image compression and decompression
    7.
    发明授权
    Image compression and decompression 有权
    图像压缩和解压缩

    公开(公告)号：US08582666B2

    公开(公告)日：2013-11-12

    申请号：US12519369

    申请日：2007-12-11

    申请人： Fei Zuo ,  Stijn De Waele ,  Wilhelmus Hendrikus Alfonsus Bruls ,  Karel Johannes Gerhardus Hinnen ,  Michael Verberne

    发明人： Fei Zuo ,  Stijn De Waele ,  Wilhelmus Hendrikus Alfonsus Bruls ,  Karel Johannes Gerhardus Hinnen ,  Michael Verberne

    IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

    CPC分类号： G06T9/00 ,  H04N19/117 ,  H04N19/137 ,  H04N19/179 ,  H04N19/182 ,  H04N19/187 ,  H04N19/46 ,  H04N19/86

    摘要： Clusters of pixels are defined for use in image compression and decompression. The image information used to define the clusters may include pixel values at predetermined positions relative to a pixel or related motion vectors, gradients, texture etc. During compression of images the image information relative to pixels is examined to determine the cluster to which it belongs. Thus pixels can be classified according to the cluster for their image information. In an embodiment the definitions of the clusters are selected dynamically, dependent on image content. For each cluster a control parameter set is computed for a post-processing operation, such as filter coefficients for filtering or statistical data for locally generating texture. The control parameter set is selected dependent on the image content so that, when the post-processing operation is applied to the image after decompression it will improve image quality for the pixels that are classified as belonging to the cluster. The compressed image and the control parameter sets are transmitted to a decompression apparatus. Upon decompression, the image information that represents the decompressed image is examined to classify pixels according to the clusters and the different control parameter sets for the selected clusters are used to control post-processing at the locations of the pixels.

    摘要翻译： 像素集合被定义用于图像压缩和解压缩。 用于定义聚类的图像信息可以包括相对于像素或相关运动矢量，渐变，纹理等的预定位置处的像素值。在压缩图像期间，检查相对于像素的图像信息以确定其所属的簇。 因此，像素可以根据集群的图像信息进行分类。 在一个实施例中，根据图像内容动态地选择簇的定义。 对于每个群集，计算用于后处理操作的控制参数集，例如用于过滤的滤波器系数或用于局部产生纹理的统计数据。 根据图像内容来选择控制参数集，使得当解压缩之后将后处理操作应用于图像时，其将改善被归类为属于集群的像素的图像质量。 压缩图像和控制参数集合被发送到解压缩装置。 在解压缩时，检查表示解压缩图像的图像信息，以根据簇分类像素，并且使用用于所选择的聚类的不同控制参数集来控制像素位置处的后处理。

    IMAGE COMPRESSION AND DECOMPRESSION
    8.
    发明申请
    IMAGE COMPRESSION AND DECOMPRESSION 有权
    图像压缩和分解

    公开(公告)号：US20100027686A1

    公开(公告)日：2010-02-04

    申请号：US12519369

    申请日：2007-12-11

    申请人： Fei Zuo ,  Stijn De Waele ,  Wilhelmus Hendrikus Alfonsus Bruls ,  Karel Johannes Gerhardus Hinnen ,  Michael Verberne

    发明人： Fei Zuo ,  Stijn De Waele ,  Wilhelmus Hendrikus Alfonsus Bruls ,  Karel Johannes Gerhardus Hinnen ,  Michael Verberne

    IPC分类号： H04N7/26 ,  G06K9/46

    CPC分类号： G06T9/00 ,  H04N19/117 ,  H04N19/137 ,  H04N19/179 ,  H04N19/182 ,  H04N19/187 ,  H04N19/46 ,  H04N19/86

    摘要： Clusters of pixels are defined for use in image compression and decompression. The image information used to define the clusters may include pixel values at predetermined positions relative to a pixel or related motion vectors, gradients, texture etc. During compression of images the image information relative to pixels is examined to determine the cluster to which it belongs. Thus pixels can be classified according to the cluster for their image information. In an embodiment the definitions of the clusters are selected dynamically, dependent on image content. For each cluster a control parameter set is computed for a post-processing operation, such as filter coefficients for filtering or statistical data for locally generating texture. The control parameter set is selected dependent on the image content so that, when the post-processing operation is applied to the image after decompression it will improve image quality for the pixels that are classified as belonging to the cluster. The compressed image and the control parameter sets are transmitted to a decompression apparatus. Upon decompression, the image information that represents the decompressed image is examined to classify pixels according to the clusters and the different control parameter sets for the selected clusters are used to control post-processing at the locations of the pixels.

    摘要翻译： 像素集合被定义用于图像压缩和解压缩。 用于定义聚类的图像信息可以包括相对于像素或相关运动矢量，渐变，纹理等的预定位置处的像素值。在压缩图像期间，检查相对于像素的图像信息以确定其所属的簇。 因此，像素可以根据集群的图像信息进行分类。 在一个实施例中，根据图像内容动态地选择簇的定义。 对于每个群集，计算用于后处理操作的控制参数集，例如用于过滤的滤波器系数或用于局部产生纹理的统计数据。 根据图像内容来选择控制参数集，使得当解压缩之后将后处理操作应用于图像时，其将改善被归类为属于集群的像素的图像质量。 压缩图像和控制参数集合被发送到解压缩装置。 在解压缩时，检查表示解压缩图像的图像信息，以根据簇分类像素，并且使用用于所选择的聚类的不同控制参数集来控制像素位置处的后处理。