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公开(公告)号:US07027661B2
公开(公告)日:2006-04-11
申请号:US09995290
申请日:2001-11-26
申请人: Miguel Estevez , Christian Unruh , Peter Wagner
发明人: Miguel Estevez , Christian Unruh , Peter Wagner
CPC分类号: H04N19/86 , H04N19/117 , H04N19/136 , H04N19/14 , H04N19/154 , H04N19/16 , H04N19/162 , H04N19/169 , H04N19/17 , H04N19/172 , H04N19/176 , H04N19/44 , H04N19/61 , H04N19/80
摘要: A method to reduce coding artifacts within a discrete decoded picture includes a spatial and/or temporal filtering with respective filter characteristics dependent on an image quality value (Q). Preferably, the spatial filtering includes a deblocking filtering, wherein the deblocking filter operation decreases with an increasing image quality value (Q) and/or the deblocking filtering chooses a image quality value (Q) dependent weighting function for a pixel to be filtered according to an activity of both blocks to which common border said pixel belongs.
摘要翻译: 减少离散解码图像内的编码伪像的方法包括取决于图像质量值(Q)的具有相应滤波器特性的空间和/或时间滤波。 优选地,空间滤波包括去块滤波,其中去块滤波器操作随着图像质量值(Q)的增加而减小,和/或去块滤波根据根据下面的方法选择要滤波的像素的图像质量值(Q)依赖加权函数 所述像素所属的共同边界的两个块的活动。
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公开(公告)号:US06996285B2
公开(公告)日:2006-02-07
申请号:US09964935
申请日:2001-09-27
申请人: Christian Unruh , Miguel Estevez , Peter Wagner
发明人: Christian Unruh , Miguel Estevez , Peter Wagner
IPC分类号: G06K9/46
CPC分类号: G06T9/00
摘要: In a method to rate a discrete decoded picture (Pin) in respect to its quality a picture quality rating function (PQRF) is calculated on basis of an information about artefacts (ARI) within the discrete decoded picture and a coding information (CRI) which was used for discrete coding the picture. Preferrably, said method is used to determine a preferred discrete picture decoding and/or postprocessing method and/or to determine a preferred discrete picture encoding and/or pre-processing method.
摘要翻译: 在对其质量进行分散离散解码图像(P )的方法中,基于关于离散解码图像内的伪像(ARI)的信息来计算图像质量评价函数(PQRF) 以及用于对图像进行离散编码的编码信息(CRI)。 优选地,所述方法用于确定优选的离散图像解码和/或后处理方法和/或确定优选的离散图像编码和/或预处理方法。
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公开(公告)号:US07352916B2
公开(公告)日:2008-04-01
申请号:US11202612
申请日:2005-08-11
申请人: Miguel Estevez , Christian Unruh , Peter Wagner
发明人: Miguel Estevez , Christian Unruh , Peter Wagner
IPC分类号: G06K9/40
CPC分类号: H04N19/86 , H04N19/117 , H04N19/136 , H04N19/14 , H04N19/154 , H04N19/16 , H04N19/162 , H04N19/169 , H04N19/17 , H04N19/172 , H04N19/176 , H04N19/44 , H04N19/61 , H04N19/80
摘要: A method to reduce coding artifacts within a discrete decoded picture includes a spatial and/or temporal filtering with respective filter characteristics dependent on an image quality value (Q). Preferably, the spatial filtering includes a deblocking filtering, wherein the deblocking filter operation decreases with an increasing image quality value (Q) and/or the deblocking filtering chooses an image quality value (Q) dependent weighting function for a pixel to be filtered according to an activity of both blocks to which common border said pixel belongs.
摘要翻译: 减少离散解码图像内的编码伪像的方法包括取决于图像质量值(Q)的具有相应滤波器特性的空间和/或时间滤波。 优选地,空间滤波包括去块滤波,其中去块滤波器操作随着图像质量值(Q)的增加而减小,和/或去块滤波根据根据下面的方法选择要滤波的像素的图像质量值(Q)依赖加权函数 所述像素所属的共同边界的两个块的活动。
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公开(公告)号:US20050265623A1
公开(公告)日:2005-12-01
申请号:US11202612
申请日:2005-08-11
申请人: Miguel Estevez , Christian Unruh , Peter Wagner
发明人: Miguel Estevez , Christian Unruh , Peter Wagner
IPC分类号: G06T5/20 , G06T9/00 , H03M7/30 , H04N5/14 , H04N5/21 , H04N19/117 , H04N19/136 , H04N19/14 , H04N19/154 , H04N19/16 , H04N19/162 , H04N19/169 , H04N19/17 , H04N19/172 , H04N19/176 , H04N19/44 , H04N19/61 , H04N19/80 , H04N19/86 , G06T5/00 , G06K9/36
CPC分类号: H04N19/86 , H04N19/117 , H04N19/136 , H04N19/14 , H04N19/154 , H04N19/16 , H04N19/162 , H04N19/169 , H04N19/17 , H04N19/172 , H04N19/176 , H04N19/44 , H04N19/61 , H04N19/80
摘要: A method to reduce coding artifacts within a discrete decoded picture includes a spatial and/or temporal filtering with respective filter characteristics dependent on an image quality value (Q). Preferably, the spatial filtering includes a deblocking filtering, wherein the deblocking filter operation decreases with an increasing image quality value (Q) and/or the deblocking filtering chooses an image quality value (Q) dependent weighting function for a pixel to be filtered according to an activity of both blocks to which common border said pixel belongs.
摘要翻译: 减少离散解码图像内的编码伪像的方法包括取决于图像质量值(Q)的具有相应滤波器特性的空间和/或时间滤波。 优选地,空间滤波包括去块滤波,其中去块滤波器操作随着图像质量值(Q)的增加而减小,和/或去块滤波根据根据下面的方法选择要滤波的像素的图像质量值(Q)依赖加权函数 所述像素所属的共同边界的两个块的活动。
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