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1.发明申请ADAPTIVE DE-BLOCKING FILTERING APPARATUS AND METHOD FOR MPEG VIDEO DECODER 有权用于MPEG视频解码器的自适应去阻塞滤波装置和方法公开(公告)号：US20050243912A1
公开(公告)日：2005-11-03
申请号：US10709337
申请日：2004-04-29
申请人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh KUO
发明人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh KUO
CPC分类号： H04N19/86 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/162 , H04N19/176 , H04N19/61
摘要： A post processing de-blocking filter includes a threshold determination unit for adaptively determining a plurality of threshold values according to at least differences in quantization parameters QPs of a plurality of adjacent blocks in a received video stream and to a user defined offset (UDO) allowing the threshold levels to be adjusted according to the UDO value; an interpolation unit for performing an interpolation operation to estimate pixel values in an interlaced field if the video stream comprises interlaced video; and a de-blocking filtering unit for determining a filtering range specifying a maximum number of pixels to filter around a block boundary between the adjacent blocks, determining a region mode according to local activity around the block boundary, selecting one of a plurality of at least three filters, and filtering a plurality of pixels around the block boundary according to the filtering range, the region mode, and the selected filter.
摘要翻译： 后处理解块滤波器包括阈值确定单元，用于根据接收到的视频流中的多个相邻块的量化参数QP的至少差异自适应地确定多个阈值，并且允许用户定义的偏移（UDO）允许 根据UDO值调整的阈值水平; 插值单元，用于如果所述视频流包括隔行扫描视频，则执行用于估计隔行扫描场中的像素值的内插操作; 以及解块滤波单元，用于确定指定最大数量的像素以过滤相邻块之间的块边界的滤波范围，根据块边界周围的局部活动确定区域模式，至少选择多个 三个滤波器，并且根据滤波范围，区域模式和所选滤波器对块边界周围的多个像素进行滤波。
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公开(公告)号：US20050244063A1
公开(公告)日：2005-11-03
申请号：US10709342
申请日：2004-04-29
申请人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh KUO
发明人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh KUO
CPC分类号： H04N19/86 , H04N19/117 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/16 , H04N19/176
摘要： A post processing de-blocking filter includes a threshold determination unit for adaptively determining a plurality of threshold values according to at least differences in quantization parameters QPs of a plurality of adjacent blocks in a received video stream and to a user defined offset (UDO) allowing the threshold levels to be adjusted according to the UDO value; an interpolation unit for performing an interpolation operation to estimate pixel values in an interlaced field if the video stream comprises interlaced video; and a de-blocking filtering unit for determining a filtering range specifying a maximum number of pixels to filter around a block boundary between the adjacent blocks, determining a region mode according to local activity around the block boundary, selecting one of a plurality of at least three filters, and filtering a plurality of pixels around the block boundary according to the filtering range, the region mode, and the selected filter.
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公开(公告)号：US20050243913A1
公开(公告)日：2005-11-03
申请号：US10709338
申请日：2004-04-29
申请人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh KUO
发明人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh KUO
CPC分类号： H04N19/86 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/162 , H04N19/176 , H04N19/61
摘要： A post processing de-blocking filter includes a threshold determination unit for adaptively determining a plurality of threshold values according to at least differences in quantization parameters QPs of a plurality of adjacent blocks in a received video stream and to a user defined offset (UDO) allowing the threshold levels to be adjusted according to the UDO value; an interpolation unit for performing an interpolation operation to estimate pixel values in an interlaced field if the video stream comprises interlaced video; and a de-blocking filtering unit for determining a filtering range specifying a maximum number of pixels to filter around a block boundary between the adjacent blocks, determining a region mode according to local activity around the block boundary, selecting one of a plurality of at least three filters, and filtering a plurality of pixels around the block boundary according to the filtering range, the region mode, and the selected filter.
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4.发明授权Adaptive de-blocking filtering apparatus and method for MPEG video decoder 有权用于MPEG视频解码器的自适应去块滤波装置和方法公开(公告)号：US07496141B2
公开(公告)日：2009-02-24
申请号：US10709340
申请日：2004-04-29
申请人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
发明人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
CPC分类号： H04N19/86 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/162 , H04N19/176 , H04N19/61
摘要： A post processing de-blocking filter includes a threshold determination unit for adaptively determining a plurality of threshold values according to at least differences in quantization parameters QPs of a plurality of adjacent blocks in a received video stream and to a user defined offset (UDO) allowing the threshold levels to be adjusted according to the UDO value; an interpolation unit for performing an interpolation operation to estimate pixel values in an interlaced field if the video stream comprises interlaced video; and a de-blocking filtering unit for determining a filtering range specifying a maximum number of pixels to filter around a block boundary between the adjacent blocks, determining a region mode according to local activity around the block boundary, selecting one of a plurality of at least three filters, and filtering a plurality of pixels around the block boundary according to the filtering range, the region mode, and the selected filter.
摘要翻译： 后处理解块滤波器包括阈值确定单元，用于根据接收到的视频流中的多个相邻块的量化参数QP的至少差异自适应地确定多个阈值，并且允许用户定义的偏移（UDO）允许 根据UDO值调整的阈值水平; 插值单元，用于如果所述视频流包括隔行扫描视频，则执行用于估计隔行扫描场中的像素值的内插操作; 以及解块滤波单元，用于确定指定最大数量的像素以过滤相邻块之间的块边界的滤波范围，根据块边界周围的局部活动确定区域模式，至少选择多个 三个滤波器，并且根据滤波范围，区域模式和所选滤波器对块边界周围的多个像素进行滤波。
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公开(公告)号：US07397854B2
公开(公告)日：2008-07-08
申请号：US10709341
申请日：2004-04-29
申请人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
发明人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
CPC分类号： H04N19/86 , H04N19/117 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/16 , H04N19/176 , H04N19/61
摘要： A post processing de-blocking filter includes a threshold determination unit for adaptively determining a plurality of threshold values according to at least differences in quantization parameters QPs of a plurality of adjacent blocks in a received video stream and to a user defined offset (UDO) allowing the threshold levels to be adjusted according to the UDO value; an interpolation unit for performing an interpolation operation to estimate pixel values in an interlaced field if the video stream comprises interlaced video; and a de-blocking filtering unit for determining a filtering range specifying a maximum number of pixels to filter around a block boundary between the adjacent blocks, determining a region mode according to local activity around the block boundary, selecting one of a plurality of at least three filters, and filtering a plurality of pixels around the block boundary according to the filtering range, the region mode, and the selected filter.
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公开(公告)号：US07539248B2
公开(公告)日：2009-05-26
申请号：US10709337
申请日：2004-04-29
申请人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
发明人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
CPC分类号： H04N19/86 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/162 , H04N19/176 , H04N19/61
摘要： A post processing de-blocking filter includes a threshold determination unit for adaptively determining a plurality of threshold values according to at least differences in quantization parameters QPs of a plurality of adjacent blocks in a received video stream and to a user defined offset (UDO) allowing the threshold levels to be adjusted according to the UDO value; an interpolation unit for performing an interpolation operation to estimate pixel values in an interlaced field if the video stream comprises interlaced video; and a de-blocking filtering unit for determining a filtering range specifying a maximum number of pixels to filter around a block boundary between the adjacent blocks, determining a region mode according to local activity around the block boundary, selecting one of a plurality of at least three filters, and filtering a plurality of pixels around the block boundary according to the filtering range, the region mode, and the selected filter.
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公开(公告)号：US07400679B2
公开(公告)日：2008-07-15
申请号：US10709342
申请日：2004-04-29
申请人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
发明人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
IPC分类号： H04B1/66
CPC分类号： H04N19/86 , H04N19/117 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/16 , H04N19/176
摘要： A post processing de-blocking filter includes a threshold determination unit for adaptively determining a plurality of threshold values according to at least differences in quantization parameters QPs of a plurality of adjacent blocks in a received video stream and to a user defined offset (UDO) allowing the threshold levels to be adjusted according to the UDO value; an interpolation unit for performing an interpolation operation to estimate pixel values in an interlaced field if the video stream comprises interlaced video; and a de-blocking filtering unit for determining a filtering range specifying a maximum number of pixels to filter around a block boundary between the adjacent blocks, determining a region mode according to local activity around the block boundary, selecting one of a plurality of at least three filters, and filtering a plurality of pixels around the block boundary according to the filtering range, the region mode, and the selected filter.
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公开(公告)号：US20050243915A1
公开(公告)日：2005-11-03
申请号：US10709340
申请日：2004-04-29
申请人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh KUO
发明人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh KUO
CPC分类号： H04N19/86 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/162 , H04N19/176 , H04N19/61
摘要： A post processing de-blocking filter includes a threshold determination unit for adaptively determining a plurality of threshold values according to at least differences in quantization parameters QPs of a plurality of adjacent blocks in a received video stream and to a user defined offset (UDO) allowing the threshold levels to be adjusted according to the UDO value; an interpolation unit for performing an interpolation operation to estimate pixel values in an interlaced field if the video stream comprises interlaced video; and a de-blocking filtering unit for determining a filtering range specifying a maximum number of pixels to filter around a block boundary between the adjacent blocks, determining a region mode according to local activity around the block boundary, selecting one of a plurality of at least three filters, and filtering a plurality of pixels around the block boundary according to the filtering range, the region mode, and the selected filter.
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公开(公告)号：US07460596B2
公开(公告)日：2008-12-02
申请号：US10709336
申请日：2004-04-29
申请人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
发明人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
IPC分类号： H04B1/66
CPC分类号： H04N19/86 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/162 , H04N19/176 , H04N19/61
摘要： A post processing de-blocking filter includes a threshold determination unit for adaptively determining a plurality of threshold values according to at least differences in quantization parameters QPs of a plurality of adjacent blocks in a received video stream and to a user defined offset (UDO) allowing the threshold levels to be adjusted according to the UDO value; an interpolation unit for performing an interpolation operation to estimate pixel values in an interlaced field if the video stream comprises interlaced video; and a de-blocking filtering unit for determining a filtering range specifying a maximum number of pixels to filter around a block boundary between the adjacent blocks, determining a region mode according to local activity around the block boundary, selecting one of a plurality of at least three filters, and filtering a plurality of pixels around the block boundary according to the filtering range, the region mode, and the selected filter.
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10.发明授权Adaptive de-blocking filtering apparatus and method for MPEG video decoder 有权用于MPEG视频解码器的自适应去块滤波装置和方法公开(公告)号：US07397853B2
公开(公告)日：2008-07-08
申请号：US10709338
申请日：2004-04-29
申请人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
发明人： Do-Kyoung Kwon , Mei-Yin Shen , Chung-Chieh Kuo
CPC分类号： H04N19/86 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/162 , H04N19/176 , H04N19/61
摘要： A post processing de-blocking filter includes a threshold determination unit for adaptively determining a plurality of threshold values according to at least differences in quantization parameters QPs of a plurality of adjacent blocks in a received video stream and to a user defined offset (UDO) allowing the threshold levels to be adjusted according to the UDO value; an interpolation unit for performing an interpolation operation to estimate pixel values in an interlaced field if the video stream comprises interlaced video; and a de-blocking filtering unit for determining a filtering range specifying a maximum number of pixels to filter around a block boundary between the adjacent blocks, determining a region mode according to local activity around the block boundary, selecting one of a plurality of at least three filters, and filtering a plurality of pixels around the block boundary according to the filtering range, the region mode, and the selected filter.
摘要翻译： 后处理解块滤波器包括阈值确定单元，用于根据接收到的视频流中的多个相邻块的量化参数QP的至少差异自适应地确定多个阈值，并且允许用户定义的偏移（UDO）允许 根据UDO值调整的阈值水平; 插值单元，用于如果所述视频流包括隔行扫描视频，则执行用于估计隔行扫描场中的像素值的内插操作; 以及解块滤波单元，用于确定指定最大数量的像素以过滤相邻块之间的块边界的滤波范围，根据块边界周围的局部活动确定区域模式，至少选择多个 三个滤波器，并且根据滤波范围，区域模式和所选滤波器对块边界周围的多个像素进行滤波。
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