-
81.发明授权Method for improving rate-distortion performance of a video compression system through parallel coefficient cancellation in the transform 有权通过变换中的并行系数消除来提高视频压缩系统的频率失真性能的方法公开(公告)号：US07327786B2
公开(公告)日：2008-02-05
申请号：US10452262
申请日：2003-06-02
申请人： Lowell L. Winger , Pavel Novotny , Guy Cote
发明人： Lowell L. Winger , Pavel Novotny , Guy Cote
CPC分类号： H04N19/18 , H04N19/132 , H04N19/136 , H04N19/157 , H04N19/176 , H04N19/61
摘要： A method for improving rate distortion performance of a compression system through parallel coefficient cancellation in a transform comprising the steps of (A) determining a block sum of absolute values for each of a plurality of blocks in a macroblock and (B) setting one or more coefficient values of a block to zero in response to a block sum value of said block being less than a first predetermined threshold value.
摘要翻译： 一种用于通过变换中的并行系数消除来改进压缩系统的速率失真性能的方法，包括以下步骤：（A）确定宏块中的多个块中的每个块的绝对值的块和，（B）设置一个或多个 响应于所述块的块和值小于第一预定阈值，块的系数值为零。
-
82.发明授权Method and/or apparatus for reducing the complexity of non-reference frame encoding using selective reconstruction 有权用于使用选择性重建降低非参考帧编码的复杂度的方法和/或装置公开(公告)号：US07324595B2
公开(公告)日：2008-01-29
申请号：US10667948
申请日：2003-09-22
申请人： Guy Cote , Michael D. Gallant , Pavel Novotny , Lowell L. Winger
发明人： Guy Cote , Michael D. Gallant , Pavel Novotny , Lowell L. Winger
摘要： A method for implementing non-reference frame prediction in video compression comprising the steps of (A) setting a prediction flag (i) “off” if non-reference frames are used for block prediction and (ii) “on” if non-reference frames are not used for block prediction, (B) if the prediction flag is off, generating an output video signal in response to an input video signal by performing an inverse quantization step and an inverse transform step in accordance with a predefined coding specification and (C) if the prediction flag is on, bypassing the inverse quantization step and the inverse transform step.
摘要翻译： 一种用于在视频压缩中实现非参考帧预测的方法，包括以下步骤：（A）如果非参考帧用于块预测，则将预测标志（i）设置为“关闭”，以及（ii）如果非参考 帧不用于块预测，（B）如果预测标志关闭，则通过根据预定义的编码规范执行逆量化步骤和逆变换步骤，响应于输入视频信号生成输出视频信号，并且（ C）如果预测标志为ON，则绕过逆量化步骤和逆变换步骤。
-
公开(公告)号：US08654853B2
公开(公告)日：2014-02-18
申请号：US13222118
申请日：2011-08-31
申请人： Guy Cote , Anthony Peter Joch , Lowell L. Winger
发明人： Guy Cote , Anthony Peter Joch , Lowell L. Winger
IPC分类号： H04B1/66
CPC分类号： H04N19/112 , H04N19/16 , H04N19/176 , H04N19/40 , H04N19/42 , H04N19/513 , H04N19/61
摘要： A method for transcoding from an MPEG-2 format to a VC-1 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the MPEG-2 format to generate a picture; (B) determining a mode indicator for the picture; and (C) coding the picture into an output video stream in the VC-1 format using one of (i) a VC-1 field mode coding and (ii) a VC-1 frame mode coding as determined from the mode indicator.
摘要翻译： 公开了一种从MPEG-2格式转换为VC-1格式的方法。 该方法通常包括以下步骤：（A）以MPEG-2格式对输入视频流进行解码以产生图像; （B）确定图像的模式指示符; 以及（C）使用（i）从模式指示符确定的VC-1场模式编码和（ii）VC-1帧模式编码中的一个将图像编码为VC-1格式的输出视频流。
-
公开(公告)号：US08437401B2
公开(公告)日：2013-05-07
申请号：US13415003
申请日：2012-03-08
IPC分类号： H04N7/12
摘要： A method of motion estimation (ME) refinement. The method generally includes the steps of (A) generating an initial motion vector (MV) by conducting a first ME on an initial block in a picture, the initial block covering an initial area of the picture, (B) generating a current MV by conducting a second ME on a current block in the picture, (i) the current block covering a subset of the initial area and (ii) the second ME being seeded by the initial MV, (C) generating at least one additional MV by conducting at least one third ME on the current block, the at least one third ME being seeded respectively by at least one neighboring MV spatially adjacent to the current MV and (D) generating a refined MV of the current block by storing in a memory a best among the current MV and the additional MV.
摘要翻译： 一种运动估计（ME）改进方法。 该方法通常包括以下步骤：（A）通过在图像中的初始块上进行第一ME生成初始运动矢量（MV），初始块覆盖图像的初始区域，（B）通过 在图像中的当前块上执行第二ME，（i）覆盖初始区域的子集的当前块和（ii）由初始MV接收的第二ME，（C）通过进行至少一个额外的MV生成 在当前块上的至少一个第三ME，所述至少一个第三ME分别由与当前MV空间相邻的至少一个相邻MV接种，并且（D）通过在存储器中存储最佳地生成当前块的精细MV 在当前MV和额外的MV之间。
-
公开(公告)号：US08305497B2
公开(公告)日：2012-11-06
申请号：US12060323
申请日：2008-04-01
申请人： Lowell L. Winger
发明人： Lowell L. Winger
CPC分类号： H04N5/21 , G06T3/4084 , G06T5/002 , G06T2200/12 , G06T2207/10016 , H04N19/59 , H04N19/80 , H04N19/86
摘要： In one embodiment of the invention, decompressed video signals are upscaled and then filtered using a combined mosquito noise reduction (MNR) and aliasing coring filter that reduces both mosquito noise in the decompressed video signals as well as aliasing noise resulting from the upscaling process. In one implementation, the combined coring filter includes a dual-band filter having two passbands interleaved with two stopbands. The strength of the coring filter may be dynamically controlled based on compression information (e.g., quantizer scales indicative of video quality) associated with the compressed video bitstream from which the decompressed video is recovered.
摘要翻译： 在本发明的一个实施例中，解压缩的视频信号被放大，然后使用组合的蚊式降噪（MNR）和混叠取芯滤波器进行滤波，其降低解压缩的视频信号中的蚊式噪声以及由升高过程产生的混叠噪声。 在一个实现中，组合的取芯滤波器包括具有与两个阻带交错的两个通带的双频带滤波器。 取决于滤波器的强度可以基于压缩信息（例如，指示视频质量的量化器尺度）来动态地控制，压缩信息与解压缩的视频被恢复的压缩视频比特流相关联。
-
公开(公告)号：US20120170660A1
公开(公告)日：2012-07-05
申请号：US13415003
申请日：2012-03-08
IPC分类号： H04N7/34
摘要： A method of motion estimation (ME) refinement. The method generally includes the steps of (A) generating an initial motion vector (MV) by conducting a first ME on an initial block in a picture, the initial block covering an initial area of the picture, (B) generating a current MV by conducting a second ME on a current block in the picture, (i) the current block covering a subset of the initial area and (ii) the second ME being seeded by the initial MV, (C) generating at least one additional MV by conducting at least one third ME on the current block, the at least one third ME being seeded respectively by at least one neighboring MV spatially adjacent to the current MV and (D) generating a refined MV of the current block by storing in a memory a best among the current MV and the additional MV.
摘要翻译： 一种运动估计（ME）改进方法。 该方法通常包括以下步骤：（A）通过在图像中的初始块上进行第一ME生成初始运动矢量（MV），初始块覆盖图像的初始区域，（B）通过 在图像中的当前块上执行第二ME，（i）覆盖初始区域的子集的当前块和（ii）由初始MV接收的第二ME，（C）通过进行至少一个额外的MV生成 在当前块上的至少一个第三ME，所述至少一个第三ME分别由与当前MV空间相邻的至少一个相邻MV接种，并且（D）通过在存储器中存储最佳地生成当前块的精细MV 在当前MV和额外的MV之间。
-
公开(公告)号：US20120147952A1
公开(公告)日：2012-06-14
申请号：US13400208
申请日：2012-02-20
申请人： Guy Cote , Lowell L. Winger
发明人： Guy Cote , Lowell L. Winger
IPC分类号： H04N7/26
CPC分类号： H04N19/40 , H04N19/112 , H04N19/16 , H04N19/176 , H04N19/42 , H04N19/513 , H04N19/61
摘要： A method for transcoding from an H.264 format to an MPEG-2 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the H.264 format to generate a picture having a plurality of macroblock pairs that used an H.264 macroblock adaptive field/frame coding; (B) determining a mode indicator for each of the macroblock pairs; and (C) coding the macroblock pairs into an output video stream in the MPEG-2 format using one of (i) an MPEG-2 field mode coding and (ii) an MPEG-2 frame mode coding as determined from the mode indicators.
摘要翻译： 公开了一种从H.264格式转换为MPEG-2格式的方法。 该方法通常包括以下步骤：（A）以H.264格式解码输入视频流，以产生具有使用H.264宏块自适应字段/帧编码的多个宏块对的图像; （B）确定每个宏块对的模式指示符; 以及（C）使用MPEG-2场模式编码和（ii）从模式指示符确定的MPEG-2帧模式编码之一，将宏块对编码为MPEG-2格式的输出视频流。
-
公开(公告)号：US08155194B2
公开(公告)日：2012-04-10
申请号：US11198456
申请日：2005-08-05
申请人： Lowell L. Winger , Guy Cote
发明人： Lowell L. Winger , Guy Cote
IPC分类号： H04B1/66
CPC分类号： H04N19/00472 , H04N19/112 , H04N19/16 , H04N19/176 , H04N19/40 , H04N19/42 , H04N19/51 , H04N19/513 , H04N19/61
摘要： A method for transcoding from an MPEG-2 format to an H.264 format is disclosed. The method generally comprises the steps of (A) decoding an input video stream in the MPEG-2 format to generate a plurality of macroblocks; (B) determining a plurality of indicators from a pair of the macroblocks, the pair of the macroblocks being vertically adjoining; and (C) coding the pair of the macroblocks into an output video stream in the H.264 format using one of (i) a field mode coding and (ii) a frame mode coding as determined from the indicators.
摘要翻译： 公开了一种从MPEG-2格式转码为H.264格式的方法。 该方法通常包括以下步骤：（A）以MPEG-2格式解码输入视频流以产生多个宏块; （B）从一对宏块中确定多个指示符，所述一对宏块垂直相邻; 以及（C）使用（i）场模式编码和（ii）从指标确定的帧模式编码中的一个，将该对宏块编码为H.264格式的输出视频流。
-
89.发明授权Method and/or apparatus for reducing the complexity of H.264 B-frame encoding using selective reconstruction 有权用于使用选择性重建降低H.264 B帧编码的复杂度的方法和/或装置公开(公告)号：US08009734B2
公开(公告)日：2011-08-30
申请号：US11879944
申请日：2007-07-19
申请人： Guy Cote , Michael D. Gallant , Pavel Novotny , Lowell L. Winger
发明人： Guy Cote , Michael D. Gallant , Pavel Novotny , Lowell L. Winger
CPC分类号： H04N19/86 , H04N19/103 , H04N19/11 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/61
摘要： A method for implementing B-frame prediction in video compression comprising the steps of (A) setting a prediction flag (i) “off” if B-frames are used for block prediction and (ii) “on” if B-frames are not used for block prediction, (B) if the prediction flag is off, generating an output video signal in response to an input video signal by performing an inverse quantization step and an inverse transform step in accordance with a predefined coding specification and (C) if the prediction flag is on, bypassing the inverse quantization step and the inverse transform step.
摘要翻译： 一种在视频压缩中实现B帧预测的方法，包括以下步骤：（A）如果B帧用于块预测，则设置预测标志（i）“关闭”，以及（ii）如果B帧不是“ （B）如果预测标志关闭，则通过根据预定义的编码规范执行逆量化步骤和逆变换步骤，响应于输入视频信号产生输出视频信号，（C）如果 该预测标志位于旁路逆量化步骤和逆变换步骤。
-
90.发明授权Method for coefficient bitdepth limitation, encoder and bitstream generation apparatus 有权系数位差限制方法，编码器和比特流生成装置公开(公告)号：US07949044B2
公开(公告)日：2011-05-24
申请号：US11104070
申请日：2005-04-12
申请人： Lowell L. Winger , Guy Cote
发明人： Lowell L. Winger , Guy Cote
CPC分类号： H04N19/162 , H04N19/103 , H04N19/115 , H04N19/124 , H04N19/139 , H04N19/159 , H04N19/176 , H04N19/42 , H04N19/61
摘要： A method for coefficient bitdepth limitation in an encoder and/or bitstream generation apparatus including the steps of (A) generating one or more residual block coefficients in response to a video signal and one or more coding parameters and (B) manipulating the one or more coding parameters such that the one or more residual block coefficients are prevented from having values greater than a bitdepth of the video signal plus a predefined number of bits.
摘要翻译： 一种编码器和/或比特流生成装置中的系数位差限制的方法，包括以下步骤：（A）响应于视频信号和一个或多个编码参数产生一个或多个残余块系数，以及（B）操纵所述一个或多个 编码参数使得一个或多个残余块系数被阻止具有大于视频信号的位差加上预定位数的位的值。
-
-
-
-
-
-
-
-
-
搜索结果
101 条记录 (耗时 0.029 秒)
