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1. 发明申请

US20140177717A1 REDUCTION OF I-PULSING ARTIFACTS 审中-公开
标题翻译：减少I-PULSING ARTIFACTS
公开(公告)号：US20140177717A1
公开(公告)日：2014-06-26
申请号：US13832799
申请日：2013-03-15
申请人： BROADCOM CORPORATION
发明人： Junlin Li , Alexander Garland MacInnis , Brad Albert Delanghe , Lei Zhang
IPC分类号： H04N7/26
CPC分类号： H04N19/00909 , H04N19/136 , H04N19/159 , H04N19/40 , H04N19/86
摘要： Various methods and systems are provided for reduction of I-pulsing artifacts. In one example, among others, a method includes modifying at least a portion of a picture to be encoded as an I picture based at least in part upon a picture that precedes the picture. The modification can reduce an I-pulsing artifact associated with the I picture. The modified picture is intra-coded for inclusion in a series of encoded pictures, which may then be transmitted. In another example, an encoder includes adaptive pre-processing circuitry configured to modify at least a portion of a first picture based at least in part upon a second picture that precedes the first picture in a series of video pictures. For example, the modification may be based upon coding noise associated with the preceding picture. Intra-encoding processing circuitry is configured to encode the modified picture as an I picture.
摘要翻译：提供了各种方法和系统来减少I脉冲伪像。在一个示例中，除其他之外，方法包括至少部分地基于图片之前的图片来修改要编码为I图片的图片的至少一部分。该修改可以减少与I图像相关联的I脉冲伪影。经修改的图像被内编码以包含在一系列编码图像中，然后可以传输它们。在另一示例中，编码器包括自适应预处理电路，其被配置为至少部分地基于在一系列视频图像中的第一图像之前的第二图像来修改第一图片的至少一部分。例如，修改可以基于与前一图像相关联的编码噪声。内部编码处理电路被配置为将修改的图像编码为I图像。

2. 发明授权

US08749641B1 Detecting media source quality to determine introduced phenomenon 有权
标题翻译：检测媒体来源质量来确定引入现象
公开(公告)号：US08749641B1
公开(公告)日：2014-06-10
申请号：US13875192
申请日：2013-05-01
申请人： Google Inc.
发明人： Meng Wang , Sang-Uok Kum , Chen Wu
IPC分类号： H04N17/00 , G01R23/00 , G06F19/00
CPC分类号： H04N19/00909 , H04N17/004 , H04N21/23418
摘要： A system and method for detecting media source quality are provided. The system includes a data store comprising a computer readable medium storing a program of instructions for the detection of media source quality; a processor that executes the program of instructions; a video data receiver to receive video raw data, the video raw data corresponding to an uploaded and transcoded video; a video improver to apply a video improvement technique to the received video raw data to produce a modified version of the video raw data; and a video quality assessor to compare the received video raw data and the modified version of the video raw data, and based on the modified version of the video raw data improving on a factor associated with the video improvement technique, the video quality assessor indicates a phenomena affecting the quality of the uploaded and transcoded video.
摘要翻译：提供了一种用于检测媒体源质量的系统和方法。该系统包括数据存储器，其包括存储用于检测媒体源质量的指令程序的计算机可读介质; 执行指令程序的处理器; 视频数据接收器，用于接收视频原始数据，视频原始数据对应于上传和转码视频; 视频改进器，用于将视频改进技术应用于所接收的视频原始数据，以产生视频原始数据的修改版本; 以及视频质量评估者，用于比较所接收的视频原始数据和视频原始数据的修改版本，并且基于与视频改进技术相关联的因素改进的视频原始数据的修改版本，视频质量评估者指示影响上传和转码视频质量的现象。

3. 发明授权

US08553771B2 Derivation process of boundary filtering strength, and deblocking filtering method and apparatus using the derivation process 失效
标题翻译：边界滤波强度的推导过程，使用推导过程的去块滤波方法和装置
公开(公告)号：US08553771B2
公开(公告)日：2013-10-08
申请号：US11985999
申请日：2007-11-19
申请人： Gwang Hoon Park , Min Woo Park , Doug Young Suh , Kyu Heon Kim
发明人： Gwang Hoon Park , Min Woo Park , Doug Young Suh , Kyu Heon Kim
IPC分类号： H04N11/02
CPC分类号： H04N19/00909 , H04N19/117 , H04N19/137 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/61 , H04N19/80 , H04N19/86
摘要： Provided are a bS derivation process and a deblocking filtering method and apparatus using illumination compensation and/or chrominance compensation, such as a multi-view video coding, in a picture coding/decoding process in which a prediction coding is performed. If neither of the two blocks are intra-coded, neither of the two blocks do contain a none-zero transformed coefficient, and motion compensation for the two blocks is performed based on the identical reference frame and the absolute difference between the horizontal or vertical components of the two motion vectors of the two blocks is less than 1, the bS of the two blocks is derived by considering whether the two blocks are coded by illumination compensation (IC) according to an embodiment of the present invention. Specifically, if both of the two blocks are coded by IC mode or neither of the two blocks are coded by IC mode, bS is set as such a value that filtering is unnecessary. On the other hand, if both of the two blocks are coded by IC mode and the blocks have different illumination change values, or only one of the blocks is coded by IC mode, the bS is derived using difference of illumination change values or the illumination change value.
摘要翻译：提供了在执行预测编码的图像编码/解码处理中使用诸如多视点视频编码之类的照明补偿和/或色度补偿的去块滤波方法和解块滤波方法和装置。如果两个块都不是内部编码的，则两个块都不包含非零变换的系数，并且基于相同的参考帧和水平或垂直分量之间的绝对差来执行两个块的运动补偿两个块的两个运动矢量小于1，通过考虑根据本发明的实施例的两个块是否通过照明补偿（IC）编码来导出两个块的bS。具体地说，如果两个块都通过IC模式编码，或者两个块都不通过IC模式进行编码，则将bS设置为不需要滤波的值。另一方面，如果通过IC模式对两个块进行编码，并且块具有不同的照明变化值，或者仅通过IC模式对块中的一个进行编码，则使用照度变化值或照明的差异导出bS 改变价值。

4. 发明申请

US20110058106A1 SPARSE GEOMETRY FOR SUPER RESOLUTION VIDEO PROCESSING 有权
标题翻译：用于超分辨率视频处理的SPARSE几何
公开(公告)号：US20110058106A1
公开(公告)日：2011-03-10
申请号：US12812201
申请日：2008-01-11
申请人： Joan Bruna Estrach , Mark Alexander Shand
发明人： Joan Bruna Estrach , Mark Alexander Shand
IPC分类号： H04N5/14
CPC分类号： H04N19/00909 , G06T7/238 , H04N5/145 , H04N5/21 , H04N7/0127 , H04N7/0135 , H04N19/86
摘要： In a method of analyzing an input video sequence, pixels of synthesized images of an output video sequence are associated with respective directions of regularity belonging to a predefined set of directions. A first subset of candidate directions is determined from the predefined set of directions for a region of a first image of the output sequence. For a corresponding region of a second synthesized image of the output sequence following the first image, a second subset of candidate directions is determined from the predefined set of directions, based on images of the input sequence and the first subset of candidate directions. The directions of regularity for pixels of this region of the second synthesized image are detected from the second subset of candidate directions. The recursive determination of the subsets of candidate directions provides a sparse geometry for efficiently analyzing the video sequence. The method is well suited for super-resolution video applications such as deinterlacing, frame rate conversion and noise reduction.
摘要翻译：在分析输入视频序列的方法中，输出视频序列的合成图像的像素与属于预定义方向集的规则性的相应方向相关联。从输出序列的第一图像的区域的预定义的一组方向确定候选方向的第一子集。对于第一图像之后的输出序列的第二合成图像的对应区域，基于输入序列和候选方向的第一子集的图像，从预定义的一组方向确定候选方向的第二子集。从候选方向的第二子集中检测第二合成图像的该区域的像素的规则性的方向。候选方向子集的递归确定提供了一个稀疏几何，用于有效分析视频序列。该方法非常适合于超分辨率视频应用，如去隔行扫描，帧速率转换和降噪。

5. 发明授权

US08982218B1 Detecting media source quality to determine introduced phenomenon 有权
标题翻译：检测媒体来源质量来确定引入现象
公开(公告)号：US08982218B1
公开(公告)日：2015-03-17
申请号：US14267836
申请日：2014-05-01
申请人： Google Inc.
发明人： Meng Wang , Sang-Uok Kum , Chen Wu
IPC分类号： H04N17/00 , G01R23/00 , G06F19/00 , H04N19/40 , H04N19/80 , H04N19/86
CPC分类号： H04N19/00909 , H04N17/004 , H04N21/23418
摘要： A system and method for detecting media source quality are provided. The system includes a data store comprising a computer readable medium storing a program of instructions for the detection of media source quality; a processor that executes the program of instructions; a video data receiver to receive video raw data, the video raw data corresponding to an uploaded and transcoded video; a video improver to apply a video improvement technique to the received video raw data to produce a modified version of the video raw data; and a video quality assessor to compare the received video raw data and the modified version of the video raw data, and based on the modified version of the video raw data improving on a factor associated with the video improvement technique, the video quality assessor indicates a phenomenon affecting the quality of the uploaded and transcoded video.
摘要翻译：提供了一种用于检测媒体源质量的系统和方法。该系统包括数据存储器，其包括存储用于检测媒体源质量的指令程序的计算机可读介质; 执行指令程序的处理器; 视频数据接收器，用于接收视频原始数据，视频原始数据对应于上传和转码视频; 视频改进器，用于将视频改进技术应用于所接收的视频原始数据，以产生视频原始数据的修改版本; 以及视频质量评估者，用于比较所接收的视频原始数据和视频原始数据的修改版本，并且基于与视频改进技术相关联的因素改进的视频原始数据的修改版本，视频质量评估者指示影响上传和转码视频质量的现象。

6. 发明授权

US08571114B2 Sparse geometry for super resolution video processing 有权
标题翻译：用于超分辨率视频处理的稀疏几何
公开(公告)号：US08571114B2
公开(公告)日：2013-10-29
申请号：US12812201
申请日：2008-01-11
申请人： Joan Bruna Estrach , Mark Alexander Shand
发明人： Joan Bruna Estrach , Mark Alexander Shand
IPC分类号： H04N7/12
CPC分类号： H04N19/00909 , G06T7/238 , H04N5/145 , H04N5/21 , H04N7/0127 , H04N7/0135 , H04N19/86
摘要： In a method of analyzing an input video sequence, pixels of synthesized images of an output video sequence are associated with respective directions of regularity belonging to a predefined set of directions. A first subset of candidate directions is determined from the predefined set of directions for a region of a first image of the output sequence. For a corresponding region of a second synthesized image of the output sequence following the first image, a second subset of candidate directions is determined from the predefined set of directions, based on images of the input sequence and the first subset of candidate directions. The directions of regularity for pixels of this region of the second synthesized image are detected from the second subset of candidate directions. The recursive determination of the subsets of candidate directions provides a sparse geometry for efficiently analyzing the video sequence. The method is well suited for super-resolution video applications such as deinterlacing, frame rate conversion and noise reduction.
摘要翻译：在分析输入视频序列的方法中，输出视频序列的合成图像的像素与属于预定义方向集的规则性的相应方向相关联。从输出序列的第一图像的区域的预定义的一组方向确定候选方向的第一子集。对于第一图像之后的输出序列的第二合成图像的对应区域，基于输入序列和候选方向的第一子集的图像，从预定义的一组方向确定候选方向的第二子集。从候选方向的第二子集中检测第二合成图像的该区域的像素的规则性的方向。候选方向子集的递归确定提供了一个稀疏几何，用于有效分析视频序列。该方法非常适合于超分辨率视频应用，如去隔行扫描，帧速率转换和降噪。

7. 发明申请

US20130215971A1 REDUCING DC LEAKAGE IN HD PHOTO TRANSFORM 有权
公开(公告)号：US20130215971A1
公开(公告)日：2013-08-22
申请号：US13758798
申请日：2013-02-04
申请人： Microsoft Corporation
发明人： Shankar Regunathan , Sridhar Srinivasan , Shijun Sun , Gary J. Sullivan , Chengjie Tu
IPC分类号： H04N7/26
CPC分类号： H04N19/00909 , H04N19/122 , H04N19/60 , H04N19/86
摘要： In certain embodiments, to eliminate DC leakage into surrounding AC values, scaling stage within a photo overlap transform operator is modified such that the off-diagonal elements of the associated scaling matrix have the values of 0. In certain embodiments, the on-diagonal scaling matrix are given the values (0.5, 2). In some embodiments, the scaling is performed using a combination of reversible modulo arithmetic and lifting steps. In yet other embodiments, amount of DC leakage is estimated at the encoder, and preprocessing occurs to mitigate amount of leakage, with the bitstream signaling that preprocessing has occurred. A decoder may then read the signal and use the information to mitigate DC leakage.

8. 发明授权

US08516534B2 Method and apparatus for model-based recovery of packet loss errors 有权
标题翻译：用于基于模型恢复丢包错误的方法和装置
公开(公告)号：US08516534B2
公开(公告)日：2013-08-20
申请号：US12429978
申请日：2009-04-24
申请人： James Pratt , Marc Sullivan , Keith Crowe
发明人： James Pratt , Marc Sullivan , Keith Crowe
IPC分类号： H04N7/16 , H04N7/12 , G09G5/00
CPC分类号： H04N19/00909 , H04N19/86 , H04N19/895 , H04N21/44008
摘要： A media processor having a controller operable to recognize a portion of a video stream in an Interactive TV (iTV) network having video compression artifacts corresponding to a stored model and perform model-based video correction of the portion recognized using synthetically generated images of objects in a captured video scene. Other embodiments are disclosed.
摘要翻译：一种媒体处理器，其具有可操作以识别具有与存储的模型相对应的视频压缩伪像的交互式TV（iTV）网络中的视频流的一部分的控制器，并且使用合成生成的对象图像来识别所述部分的基于模型的视频校正拍摄的视频场景。公开了其他实施例。

9. 发明申请

US20120162525A1 Method And System For Digital Noise Reduction Of Scaled Compressed Video Pictures 有权
标题翻译：数字降噪缩放压缩视频图像的方法和系统
公开(公告)号：US20120162525A1
公开(公告)日：2012-06-28
申请号：US12975977
申请日：2010-12-22
申请人： Brian Schoner , Jaewon Shin , Olivier Francois Joseph Harel , Advait Madhav Mogre , Hyeong-Seok Victor Ha
发明人： Brian Schoner , Jaewon Shin , Olivier Francois Joseph Harel , Advait Madhav Mogre , Hyeong-Seok Victor Ha
IPC分类号： H04N5/00
CPC分类号： H04N19/00909 , H04N19/86
摘要： In a video processing device, scale of a video image is detected for vertical and horizontal directions based on pixel information, for example, per pixel vertical and horizontal gradients. Gradients are utilized or discarded based on picture format, standard deviation of luma levels and pixel location relative to black border edges, graphics and/or overlaid content. Mosquito noise filters are adapted based on scale and/or noise strength. Median and/or linear filter results are selected based on a weakest, a strongest and/or a blended result. Horizontal and vertical operations are performed separately for edge detection, edge strength determination, filtering and filter correction control. Horizontal and vertical block grid spacing and grid shift are determined. Block noise strength is determined. Block noise filters are configured based on scaling and/or noise strength. Filter corrections are limited based on block noise strength. Noise reduction results may be blended to generate a pixel correction value.
摘要翻译：在视频处理设备中，基于像素信息，例如每像素垂直和水平梯度，检测垂直和水平方向的视频图像的尺度。基于图像格式，亮度级别的标准偏差和相对于黑色边缘边缘，图形和/或重叠内容的像素位置来使用或丢弃渐变。蚊子噪声滤波器基于规模和/或噪声强度进行调整。基于最弱，最强和/或混合结果选择中值和/或线性滤波器结果。水平和垂直操作分别进行边缘检测，边缘强度确定，滤波和滤波器校正控制。确定水平和垂直方格网格间距和网格位移。确定噪声强度。基于缩放和/或噪声强度配置块噪声滤波器。基于块噪声强度限制滤波器校正。可以混合噪声降低结果以产生像素校正值。

10. 发明授权

US09338455B1 Adaptive compression artifacts reduction method 有权
标题翻译：自适应压缩伪像缩减方法
公开(公告)号：US09338455B1
公开(公告)日：2016-05-10
申请号：US13918405
申请日：2013-06-14
申请人： Pixelworks, Inc.
发明人： Xiaojie Sheng , Neil Woodall , Bob Zhang , Guohua Cheng
IPC分类号： H04N19/00 , H04N19/86
CPC分类号： H04N19/00909 , H04N19/80 , H04N19/86
摘要： A method of reducing artifacts in video image data includes determining pixels in a block of image data that are mosquito pixels, estimating a level of mosquito noise in the block, and filtering out the mosquito noise to produce noise-filtered data.
摘要翻译：减少视频图像数据中的伪像的方法包括确定作为蚊子像素的图像数据块中的像素，估计块中的蚊式噪声水平，以及滤除蚊式噪声以产生经噪声滤波的数据。

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