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1. 发明申请

US20090010326A1 METHOD AND APPARATUS FOR PARALLEL VIDEO DECODING 审中-公开
标题翻译：并行视频解码的方法与装置
公开(公告)号：US20090010326A1
公开(公告)日：2009-01-08
申请号：US11773626
申请日：2007-07-05
申请人： Andreas Rossholm , Johan Svensson
发明人： Andreas Rossholm , Johan Svensson
IPC分类号： H04N11/02
CPC分类号： H04N19/523 , H04N19/43 , H04N19/436 , H04N19/61
摘要： A method and apparatus for parallel decoding of a video data stream in a video decoder. A first processor (CPU-1) performs entropy decoding, inverse quantization, inverse transformation, intra prediction, and modified motion compensation on the video data to produce an intermediate data stream. In parallel with CPU-1, the intermediate data stream is provided to a second processor (CPU-2), which performs de-blocking to produce a decoded video data stream, and also performs pre-motion compensation and interpolation to produce interpolated reference frames. CPU-2 stores original frames and interpolated reference frames in a frame buffer. In parallel, CPU-1 selectively reads either the original video reference frames or the interpolated reference frames from the frame buffer prior to performing the modified motion compensation.
摘要翻译：一种视频解码器中视频数据流并行解码的方法和装置。第一处理器（CPU-1）对视频数据执行熵解码，逆量化，逆变换，帧内预测和修改的运动补偿以产生中间数据流。与CPU-1并行，将中间数据流提供给执行解块以产生解码的视频数据流的第二处理器（CPU-2），并且还执行预运动补偿和内插以产生内插参考帧。 CPU-2将原始帧和内插参考帧存储在帧缓冲区中。并行地，在执行修改的运动补偿之前，CPU-1选择性地从帧缓冲器中读取原始视频参考帧或内插参考帧。

2. 发明申请

US20110299593A1 Methods of and Arrangements for Processing an Encoded Bit Stream 有权
标题翻译：处理编码位流的方法和安排
公开(公告)号：US20110299593A1
公开(公告)日：2011-12-08
申请号：US13201619
申请日：2009-03-13
申请人： Martin Pettersson , Andreas Rossholm
发明人： Martin Pettersson , Andreas Rossholm
IPC分类号： H04N7/26 , H04N7/24 , H04N7/12
CPC分类号： H04N19/154 , H04N7/17318 , H04N19/127 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/42 , H04N19/44 , H04N19/46 , H04N19/523 , H04N19/573 , H04N19/61 , H04N21/2353 , H04N21/44004 , H04N21/64784
摘要： In a method for extracting information from an encoded bit stream, the extracted information may be used for improving bit stream quality assessment, or for adapting a decoding sub-system. From an encoded bit stream, received from a bit stream source, complexity related information that is indicative of the complexity of the encoding of said bit stream is extracted. On the basis of said extracted complexity related information one or more data settings are then selected, after which the data settings may be used as an input for improving bit stream quality assessment at a decoding device or a network node, or for adapting a bit stream decoding sub-system at a decoding device.
摘要翻译：在从编码比特流中提取信息的方法中，所提取的信息可以用于改进比特流质量评估或用于适配解码子系统。提取了从比特流源接收的编码比特流，表示所述比特流的编码的复杂度的复杂度相关信息。基于所述提取的复杂度相关信息，然后选择一个或多个数据设置，之后可以将数据设置用作用于改进解码设备或网络节点处的比特流质量评估的输入，或者用于适配比特流在解码装置处解码子系统。

3. 发明授权

US08203617B2 Apparatus and method for increasing coding efficiency with an adaptive pre-filter 有权
标题翻译：用自适应预滤波器提高编码效率的装置和方法
公开(公告)号：US08203617B2
公开(公告)日：2012-06-19
申请号：US11734166
申请日：2007-04-11
申请人： Andreas Rossholm , Per Thorell
发明人： Andreas Rossholm , Per Thorell
IPC分类号： H04N5/228 , G06K9/00
CPC分类号： H04N19/86 , H04N19/117 , H04N19/17 , H04N19/182 , H04N19/186 , H04N19/61 , H04N19/80 , H04N19/85
摘要： A method and apparatus for processing a digital image in a Mobile Equipment operating in a telecommunications network. The digital image includes a frame of data having a plurality of pixels with data. The data of each pixel has a luminance value and a chrominance value. The method begins by obtaining chrominance value for a specified pixel of the digital image. Responsive to the obtained chrominance value, a strength to filter the specified pixel of digital image is determined. The specified pixel is then selectively and adaptively filtered at the determined strength of the filter. Preferably, chrominance values and luminance values for the specified pixel and an adjacent pixel is determined. A threshold for a variation in the range between a highest chrominance level and a lowest chrominance level of the specified pixel and the adjacent pixel is then set. The variation for the specified pixel is determined, and responsive to the value of the variation, low-pass filtering of the specified pixel is applied.
摘要翻译：一种在电信网络中操作的移动设备中处理数字图像的方法和装置。数字图像包括具有多个具有数据的像素的数据帧。每个像素的数据具有亮度值和色度值。该方法通过获得数字图像的指定像素的色度值开始。响应所获得的色度值，确定滤波数字图像的指定像素的强度。然后在确定的滤波器强度下选择性地并自适应地过滤指定的像素。优选地，确定指定像素和相邻像素的色度值和亮度值。然后设置用于指定像素和相邻像素的最高色度电平和最低色度电平之间的范围的变化的阈值。确定指定像素的变化，并且响应于变化的值，应用指定像素的低通滤波。

4. 发明申请

US20110243221A1 Method and Apparatus for Video Encoding 有权
标题翻译：视频编码的方法和装置
公开(公告)号：US20110243221A1
公开(公告)日：2011-10-06
申请号：US12294446
申请日：2007-03-29
申请人： Andreas Rossholm , Per Thorell
发明人： Andreas Rossholm , Per Thorell
IPC分类号： H04N7/26
CPC分类号： H04N19/194 , H04N19/124 , H04N19/126 , H04N19/134 , H04N19/15 , H04N19/176 , H04N19/50 , H04N19/61
摘要： A method for encoding a video sequence of video frames. Each video frame includes a plurality of macro blocks. One video frame of the video sequence is encoded based on a first quantization parameter value for generating a first bit stream setup of encoded macro blocks (12). Transmission of a subset of the encoded macro blocks from the first bit stream is initiated (13). It is determined if the first bit stream exceeds a bit budget. If the first bit stream is determined to exceed the bit budget, a second quantization parameter value, which is larger than the first quantization parameter value, is generated. Otherwise, the second quantization parameter value, which is smaller than the first quantization parameter value, is generated. At least a part of the video frame is encoded based on the second quantization parameter value for generating a second bit stream of encoded macro blocks (15, 15a). The first bit stream and the second bit stream are then merged (17, 17a). An apparatus for performing the method is also disclosed.
摘要翻译：一种用于对视频帧的视频序列进行编码的方法。每个视频帧包括多个宏块。基于用于生成编码宏块（12）的第一比特流建立的第一量化参数值对视频序列的一个视频帧进行编码。启动来自第一位流的编码宏块的子集的传输（13）。确定第一位流是否超过位预算。如果第一比特流被确定为超过比特预算，则生成大于第一量化参数值的第二量化参数值。否则，生成小于第一量化参数值的第二量化参数值。基于用于生成编码宏块（15,15a）的第二比特流的第二量化参数值对视频帧的至少一部分进行编码。然后第一比特流和第二比特流被合并（17,17a）。还公开了一种用于执行该方法的装置。

5. 发明授权

US10728538B2 Technique for video quality estimation 有权
公开(公告)号：US10728538B2
公开(公告)日：2020-07-28
申请号：US13521172
申请日：2010-02-01
申请人： Martin Pettersson , Andreas Rossholm
发明人： Martin Pettersson , Andreas Rossholm
IPC分类号： H04N17/00
摘要： An objective video quality estimation technique is disclosed. The technique may be based on a video bitstream model, using parameters taken from the video coding layer of the bitstream for estimating the quality of the video. The technique can be implemented as a method, a computer program, a computer program product, a device, or any one of a server node, a client terminal and a network node comprising the device. As a method embodiment, the technique comprises receiving a video bitstream comprising a series of picture frames; determining an error occurrence in a picture frame of the video bitstream; determining at least one of a temporal propagation and a spatial propagation of the error; and estimating the quality of the video bitstream based on result of the determination.

6. 发明授权

US09462233B2 Methods of and arrangements for processing an encoded bit stream 有权
标题翻译：用于处理编码比特流的方法和布置
公开(公告)号：US09462233B2
公开(公告)日：2016-10-04
申请号：US13201619
申请日：2009-03-13
申请人： Andreas Rossholm , Martin Pettersson
发明人： Andreas Rossholm , Martin Pettersson
IPC分类号： H04N7/173 , H04N21/235 , H04N21/44 , H04N21/647 , H04N19/139 , H04N19/159 , H04N19/46 , H04N19/61 , H04N19/127 , H04N19/14 , H04N19/44 , H04N19/42 , H04N19/523 , H04N19/573
CPC分类号： H04N19/154 , H04N7/17318 , H04N19/127 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/42 , H04N19/44 , H04N19/46 , H04N19/523 , H04N19/573 , H04N19/61 , H04N21/2353 , H04N21/44004 , H04N21/64784
摘要： In a method for extracting information from an encoded bit stream, the extracted information may be used for improving bit stream quality assessment, or for adapting a decoding sub-system. From an encoded bit stream, received from a bit stream source, complexity related information that is indicative of the complexity of the encoding of said bit stream is extracted. On the basis of said extracted complexity related information one or more data settings are then selected, after which the data settings may be used as an input for improving bit stream quality assessment at a decoding device or a network node, or for adapting a bit stream decoding sub-system at a decoding device.
摘要翻译：在从编码比特流中提取信息的方法中，所提取的信息可以用于改进比特流质量评估或用于适配解码子系统。提取了从比特流源接收的编码比特流，表示所述比特流的编码的复杂度的复杂度相关信息。基于所述提取的复杂度相关信息，然后选择一个或多个数据设置，之后可以将数据设置用作用于改进解码设备或网络节点处的比特流质量评估的输入，或者用于适配比特流在解码装置处解码子系统。

7. 发明申请

US20120281142A1 TECHNIQUE FOR VIDEO QUALITY ESTIMATION 审中-公开
标题翻译：视频质量估算技术
公开(公告)号：US20120281142A1
公开(公告)日：2012-11-08
申请号：US13521172
申请日：2010-02-01
申请人： Martin Pettersson , Andreas Rossholm
发明人： Martin Pettersson , Andreas Rossholm
IPC分类号： H04N5/44
CPC分类号： H04N17/004
摘要： An objective video quality estimation technique is disclosed. The technique may be based on a video bitstream model, using parameters taken from the video coding layer of the bitstream for estimating the quality of the video. The technique can be implemented as a method, a computer program, a computer program product, a device, or any one of a server node, a client terminal and a network node comprising the device. As a method embodiment, the technique comprises receiving a video bitstream comprising a series of picture frames; determining an error occurrence in a picture frame of the video bitstream; determining at least one of a temporal propagation and a spatial propagation of the error; and estimating the quality of the video bitstream based on result of the determination.
摘要翻译：公开了客观的视频质量估计技术。该技术可以基于视频比特流模型，使用从比特流的视频编码层获取的参数来估计视频的质量。该技术可以被实现为方法，计算机程序，计算机程序产品，设备，或服务器节点，客户终端和包括该设备的网络节点中的任何一个。作为方法实施例，该技术包括：接收包括一系列相框的视频比特流; 确定视频比特流的图片帧中的错误发生; 确定误差的时间传播和空间传播中的至少一个; 以及基于确定的结果估计视频比特流的质量。

8. 发明申请

US20070216763A1 APPARATUS AND METHOD FOR INCREASING CODING EFFICIENCY WITH AN ADAPTIVE PRE-FILTER 有权
标题翻译：用自适应预过滤器提高编码效率的装置和方法
公开(公告)号：US20070216763A1
公开(公告)日：2007-09-20
申请号：US11734166
申请日：2007-04-11
申请人： Andreas Rossholm , Per Thorell
发明人： Andreas Rossholm , Per Thorell
IPC分类号： H04N5/217
CPC分类号： H04N19/86 , H04N19/117 , H04N19/17 , H04N19/182 , H04N19/186 , H04N19/61 , H04N19/80 , H04N19/85
摘要： A method and apparatus for processing a digital image in a Mobile Equipment operating in a telecommunications network. The digital image includes a frame of data having a plurality of pixels with data. The data of each pixel has a luminance value and a chrominance value. The method begins by obtaining chrominance value for a specified pixel of the digital image. Responsive to the obtained chrominance value, a strength to filter the specified pixel of digital image is determined. The specified pixel is then selectively and adaptively filtered at the determined strength of the filter. Preferably, chrominance values and luminance values for the specified pixel and an adjacent pixel is determined. A threshold for a variation in the range between a highest chrominance level and a lowest chrominance level of the specified pixel and the adjacent pixel is then set. The variation for the specified pixel is determined, and responsive to the value of the variation, low-pass filtering of the specified pixel is applied.
摘要翻译：一种在电信网络中操作的移动设备中处理数字图像的方法和装置。数字图像包括具有多个具有数据的像素的数据帧。每个像素的数据具有亮度值和色度值。该方法通过获得数字图像的指定像素的色度值开始。响应所获得的色度值，确定滤波数字图像的指定像素的强度。然后在确定的滤波器强度下选择性地并自适应地过滤指定的像素。优选地，确定指定像素和相邻像素的色度值和亮度值。然后设置用于指定像素和相邻像素的最高色度电平和最低色度电平之间的范围变化的阈值。确定指定像素的变化，并且响应于变化的值，应用指定像素的低通滤波。

9. 发明授权

US08548045B2 Method and apparatus for video encoding 有权
标题翻译：用于视频编码的方法和装置
公开(公告)号：US08548045B2
公开(公告)日：2013-10-01
申请号：US12294446
申请日：2007-03-29
申请人： Andreas Rossholm , Per Thorell
发明人： Andreas Rossholm , Per Thorell
IPC分类号： H04N7/26
CPC分类号： H04N19/194 , H04N19/124 , H04N19/126 , H04N19/134 , H04N19/15 , H04N19/176 , H04N19/50 , H04N19/61
摘要： A method for encoding a video sequence of video frames. Each video frame includes a plurality of macro blocks. One video frame of the video sequence is encoded based on a first quantization parameter value for generating a first bit stream of encoded macro blocks (12). Transmission of a subset of the encoded macro blocks from the first bit stream is initiated (13). It is determined if the first bit stream exceeds a bit budget. If the first bit stream is determined to exceed the bit budget, a second quantization parameter value, which is larger than the first quantization parameter value, is generated. Otherwise, the second quantization parameter value, which is smaller than the first quantization parameter value, is generated. At least a part of the video frame is encoded based on the second quantization parameter value for generating a second bit stream of encoded macro blocks (15, 15a). The first bit stream and the second bit stream are then merged (17, 17a). An apparatus for performing the method is also disclosed.
摘要翻译：一种用于对视频帧的视频序列进行编码的方法。每个视频帧包括多个宏块。基于用于生成编码宏块（12）的第一比特流的第一量化参数值对视频序列的一个视频帧进行编码。启动来自第一位流的编码宏块的子集的传输（13）。确定第一位流是否超过位预算。如果第一比特流被确定为超过比特预算，则生成大于第一量化参数值的第二量化参数值。否则，生成小于第一量化参数值的第二量化参数值。基于用于生成编码宏块（15,15a）的第二比特流的第二量化参数值对视频帧的至少一部分进行编码。然后第一比特流和第二比特流被合并（17,17a）。还公开了一种用于执行该方法的装置。

10. 发明授权

US07136536B2 Adaptive filter 有权
公开(公告)号：US07136536B2
公开(公告)日：2006-11-14
申请号：US11302045
申请日：2005-12-13
申请人： Kenneth Andersson , Andreas Rossholm
发明人： Kenneth Andersson , Andreas Rossholm
IPC分类号： G06K9/40
CPC分类号： G06T5/003 , G06T5/002 , G06T5/20 , G06T2207/20012 , G06T2207/20192 , H04N19/117 , H04N19/14 , H04N19/166 , H04N19/176 , H04N19/182 , H04N19/86 , H04N19/895
摘要： An adaptive filter that, in one embodiment, filters rows of pixels of an image in a vertical direction, stores the results in row vectors, and then filters the row vectors in the horizontal direction, and displays the results or stores the results for later display. Coefficients of a reference filter are modified based on the output from the reference filter through a table-lookup process that accesses tables of modified filter coefficients. The output of the modified filter is added to a delayed version of the input to provide the adaptive filter output.

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