公开(公告)号：US09860513B2

公开(公告)日：2018-01-02

申请号：US13579670

申请日：2010-02-19

申请人： Jill MacDonald Boyce ,  Kumar Ramaswamy ,  Joan Llach

发明人： Jill MacDonald Boyce ,  Kumar Ramaswamy ,  Joan Llach

IPC分类号： H04N13/00 ,  H04N13/02

CPC分类号： H04N13/156 ,  H04N13/183 ,  H04N13/261 ,  H04N13/293

摘要： A method for inserting a logo into a stereo video image to generate an overlaid stereo image, the method comprising: detecting presence of stereo pictures in the video image and, when stereo pictures are detected, determining the 3D format of said stereo pictures, said 3D format being a stereo spatially multiplexed format; generating a stereo logo comprising stereo spatially multiplexed logo pictures including a representation of the logo, said stereo spatially multiplexed logo pictures being arranged in said 3D format; and combining the stereo logo and the video image to generate the overlaid stereo image in said 3D format.

公开(公告)号：US09602814B2

公开(公告)日：2017-03-21

申请号：US13574428

申请日：2011-01-20

申请人： Sitaram Bhagavathy ,  Joan Llach ,  Dong-Qing Zhang

发明人： Sitaram Bhagavathy ,  Joan Llach ,  Dong-Qing Zhang

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/577 ,  H04N19/51 ,  H04N19/527 ,  H04N19/119 ,  H04N19/132 ,  H04N19/12 ,  H04N19/59 ,  H04N19/137 ,  H04N19/172 ,  H04N19/20 ,  H04N19/46 ,  H04N19/33

CPC分类号： H04N19/577 ,  H04N19/119 ,  H04N19/12 ,  H04N19/132 ,  H04N19/137 ,  H04N19/172 ,  H04N19/20 ,  H04N19/33 ,  H04N19/46 ,  H04N19/527 ,  H04N19/537 ,  H04N19/573 ,  H04N19/59

摘要： Methods and apparatus are provided for sampling-based super resolution video encoding and decoding. The encoding method receives high resolution pictures and generates low resolution pictures and metadata there from, the metadata for guiding post-decoding post-processing of the low resolution pictures and the metadata; and then encodes the low resolution pictures and the metadata using at least one encoder. The corresponding decoding method receives a bitstream and decodes low resolution pictures and metadata there from using a decoder; and then reconstructs high resolution pictures respectively corresponding to the low resolution pictures using the low resolution pictures and the metadata.

公开(公告)号：US09420291B2

公开(公告)日：2016-08-16

申请号：US13576848

申请日：2011-02-01

申请人： Dong-Qing Zhang ,  Joan Llach ,  Sitaram Bhagavathy

发明人： Dong-Qing Zhang ,  Joan Llach ,  Sitaram Bhagavathy

IPC分类号： H04N7/12 ,  H04N19/105 ,  G06T1/00 ,  H04N19/139 ,  H04N19/593 ,  H04N19/14 ,  H04N19/94 ,  H04N19/59

CPC分类号： H04N19/105 ,  G06T1/00 ,  H04N19/139 ,  H04N19/14 ,  H04N19/59 ,  H04N19/593 ,  H04N19/94

摘要： Methods and apparatus are provided for reducing vector quantization error through patch shifting. A method generates, from an input video sequence, one of more high resolution replacement patches, the one or more high resolution replacement patches for replacing one or more low resolution patches during a reconstruction of the input video sequence. This generating step generates the one or more high resolution replacement patches using data corresponding to a patch spatial shifting process, the patch spatial shifting process for reducing jittery artifacts caused by a motion-induced vector quantization error in the one or more high resolution replacement patches, the data for at least deriving a patch size of the one or more high resolution replacement patches such that the one or more high resolution replacement patches are generated to have the patch size greater than a patch size of the one or more low resolution patches in order to be suitable for use in the patch spatial shifting process.

摘要翻译： 提供了通过补片移位来减少矢量量化误差的方法和装置。 一种方法从输入视频序列生成更多高分辨率替换贴片之一，该一个或多个高分辨率替换贴片用于在重建输入视频序列期间替换一个或多个低分辨率贴片。 该生成步骤使用与贴片空间移位处理对应的数据来生成一个或多个高分辨率替换贴片，该贴片空间移位处理用于减少由一个或多个高分辨率替换贴片中的运动引起的矢量量化误差引起的抖动伪像， 所述数据用于至少导出所述一个或多个高分辨率替换补丁的补丁大小，使得生成所述一个或多个高分辨率替换补丁以使所述补丁大小大于所述一个或多个低分辨率补丁的补丁大小顺序 适用于贴片空间位移过程。

公开(公告)号：US08805004B2

公开(公告)日：2014-08-12

申请号：US13138091

申请日：2010-01-05

申请人： Yu Huang ,  Joan Llach

发明人： Yu Huang ,  Joan Llach

IPC分类号： G06K9/00

CPC分类号： G06K9/00718 ,  G06K9/00724 ,  G06K9/00744

摘要： Substantial elimination of errors in the detection and location of overlapping human objects in an image of a playfield is achieved, in accordance with at least one aspect of the invention, by performing a predominately shape-based analysis of one or more characteristics obtained from a specified portion of the candidate non-playfield object, by positioning a human object model substantially over the specified portion of the candidate non-playfield object in accordance with information based at least in part on information from the shape-based analysis, and removing an overlapping human object from the portion of the candidate non-playfield object identified by the human object model. In one exemplary embodiment, the human object model is an ellipse whose major and minor axes are variable in relation to one or more characteristics identified from the specified portion of the candidate non-playfield object.

摘要翻译： 根据本发明的至少一个方面，通过基于形状的分析来实现从指定的图像中获得的一个或多个特征，从而实现了重叠的人类对象在场景图像中的检测和定位中的错误的显着消除 通过至少部分地基于来自基于形状的分析的信息的信息，基于基于形状的分析的信息的信息将人体对象模型基本上定位在候选非播放对象的指定部分上，并且去除重叠的人 来自由人类对象模型识别的候选非玩游戏对象的部分的对象。 在一个示例性实施例中，人体对象模型是椭圆，其主轴和短轴相对于从候选非播放对象的指定部分识别的一个或多个特征是可变的。

公开(公告)号：US08532375B2

公开(公告)日：2013-09-10

申请号：US12448966

申请日：2008-01-18

申请人： Sitaram Bhagavathy ,  Joan Llach ,  Zhai Jie Fu

发明人： Sitaram Bhagavathy ,  Joan Llach ,  Zhai Jie Fu

IPC分类号： G06K9/00

CPC分类号： G06T5/002 ,  G06T2207/10024 ,  H04N1/409

摘要： One or more implementations access a digital image and determine whether at least one portion of the digital image includes one or more bands having a difference in color. The determination is based on at least two candidate scales. One or more implementations access a digital image and assess at least a portion of the digital image for the existence of one or more bands having a difference in color. The assessing includes determining a fraction of pixels in the portion having a color value offset by an offset value from a color value of a particular pixel in the portion.

摘要翻译： 一个或多个实现访问数字图像并确定数字图像的至少一部分是否包括具有不同颜色的一个或多个频带。 该决定基于至少两个候选量表。 一个或多个实现访问数字图像并且评估数字图像的至少一部分是否存在具有不同颜色的一个或多个频带。 评估包括确定具有偏移值的部分中的像素的一部分中的像素的部分中的特定像素的颜色值。

公开(公告)号：US08447127B2

公开(公告)日：2013-05-21

申请号：US12589217

申请日：2009-10-20

申请人： Cristina Gomila ,  Joan Llach ,  Jeffrey Allen Cooper

发明人： Cristina Gomila ,  Joan Llach ,  Jeffrey Allen Cooper

IPC分类号： G06K9/46 ,  G06K9/66 ,  G06K9/62 ,  G06K9/40 ,  H04N7/01 ,  H04N11/20 ,  H04N1/32 ,  H04N1/41 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04B1/66 ,  G06K9/36

CPC分类号： H04N5/262 ,  G06T5/002 ,  G06T2207/10016 ,  G06T2207/20204 ,  H04N19/117 ,  H04N19/176 ,  H04N19/46 ,  H04N19/467 ,  H04N19/80 ,  H04N19/85 ,  H04N19/86

摘要： Briefly, in accordance with a preferred embodiment of the present principles, simulation of a block of film grain for addition to a block of an image occurs by first establishing at least one image parameter in accordance with at least one attribute of the block. Thereafter, a block of film grain is established in accordance with the image parameter. Deblocking filtering can be applied to the film grain block.

摘要翻译： 简而言之，根据本原理的优选实施例，通过首先根据块的至少一个属性建立至少一个图像参数来发生用于添加到图像块的胶片颗粒块的模拟。 此后，根据图像参数建立胶片颗粒块。 去块滤波可以应用于胶片颗粒块。

公开(公告)号：US08391547B2

公开(公告)日：2013-03-05

申请号：US12450410

申请日：2007-11-06

申请人： Yu Huang ,  Joan Llach ,  Sitaram Bhagavathy

发明人： Yu Huang ,  Joan Llach ,  Sitaram Bhagavathy

IPC分类号： G06K9/00 ,  G06K9/34

CPC分类号： G06K9/00711 ,  G06K9/44 ,  G06K9/4652

摘要： A method is disclosed for detecting and locating players in soccer video frames without errors caused by artifacts by a shape analysis-based approach to identify the players and the ball from roughly extracted foregrounds obtained by color segmentation and connected component analysis, by performing a Euclidean distance transform to extract skeletons for every foreground blob, by performing a shape analysis to remove false alarms (non-players and non-ball), and then by performing skeleton pruning and a reverse Euclidean distance transform to cut-off the artifacts primarily caused by playing field lines.

摘要翻译： 公开了一种用于通过基于形状分析的方法来检测和定位足球视频帧中的玩家而产生错误的方法，以通过执行欧几里德距离从颜色分割和连接分量分析获得的粗略提取的前景识别玩家和球， 通过执行形状分析来消除假警报（非玩家和非球），然后通过执行骨架修剪和反向欧几里得距离变换来截取主要由玩耍造成的伪影，从而转换为每个前景斑点提取骨架 现场线。

公开(公告)号：US08346009B2

公开(公告)日：2013-01-01

申请号：US12803370

申请日：2010-06-25

申请人： Jiefu Zhai ,  Joan Llach ,  Zhe Wang

发明人： Jiefu Zhai ,  Joan Llach ,  Zhe Wang

IPC分类号： G06K9/36

CPC分类号： H04N5/202 ,  G09G3/2003 ,  G09G2340/0428 ,  G09G2340/06

摘要： A method for tone mapping high dynamic range images for display on low dynamic range displays wherein high dynamic range images are first accessed. The high dynamic range images are divided the into different regions such that each region is represented by a matrix, where each element of the matrix is a weight or probability of a pixel value. An exposure of each region is determined or calculated by estimating an anchor point in each region such that most pixels in each region are mapped to mid grey and the anchor points are adjusted to a key of the images to preserve overall brightness. The regions are then placed or mapped to zones and exposure values are applied to the regions responsive to the weight or probability. The regions are fused together to obtain a final tone mapped image.

摘要翻译： 一种用于将高动态范围图像进行色调映射以在低动态范围显示器上显示的方法，其中首先访问高动态范围图像。 高动态范围图像被划分成不同的区域，使得每个区域由矩阵表示，其中矩阵的每个元素是像素值的权重或概率。 通过估计每个区域中的锚点来确定或计算每个区域的曝光，使得每个区域中的大多数像素被映射到中间灰色，并且将锚点调整为图像的关键以保持整体亮度。 然后将区域放置或映射到区域，并且响应于重量或概率将曝光值应用于区域。 将这些区域融合在一起以获得最终的色调映射图像。

公开(公告)号：US20120320153A1

公开(公告)日：2012-12-20

申请号：US13580757

申请日：2010-12-20

申请人： Jesus Barcons-Palau ,  Joan Llach

发明人： Jesus Barcons-Palau ,  Joan Llach

IPC分类号： H04N13/00

CPC分类号： G06T7/33 ,  G06T2207/10021 ,  H04N13/10 ,  H04N13/156 ,  H04N13/183 ,  H04N13/361

摘要： In various embodiment of the present invention, the difference of disparity between subtitles in stereoscopic content along time is restrained by a function of time and disparity. This guarantees that two consecutive subtitles will have similar disparity if they are close in time. More specifically, a method for the positioning of subtitles in stereoscopic content includes estimating a position for a subtitle in at least one frame of the stereoscopic content and restraining a difference in disparity between subtitles in at least two frames by a function of time and disparity. In such an embodiment, the estimating can include computing a disparity value for the subtitle using a disparity of an object in a region in the at least one frame in which the subtitle is to be inserted. The subtitle can then be adjusted to be in front of or behind the object.

摘要翻译： 在本发明的各种实施例中，随时间和视差的函数来限制立体内容中的字幕与时间的差异。 这确保了两个连续的字幕在时间上是接近的时候会有相似的差异。 更具体地说，用于在立体内容中定位字幕的方法包括估计立体内容的至少一帧中的字幕的位置，并且通过时间和视差的函数来抑制至少两帧中的字幕之间的差异的差异。 在这样的实施例中，估计可以包括使用要插入字幕的至少一个帧中的区域中的对象的视差来计算字幕的视差值。 然后可以将字幕调整为在对象的前面或后面。

公开(公告)号：US20120288015A1

公开(公告)日：2012-11-15

申请号：US13522024

申请日：2011-01-21

申请人： Dong-Qing Zhang ,  Sitaram Bhagavathy ,  Joan Llach

发明人： Dong-Qing Zhang ,  Sitaram Bhagavathy ,  Joan Llach

IPC分类号： H04N7/12

CPC分类号： H04N19/105 ,  H04N7/0125 ,  H04N7/54 ,  H04N19/139 ,  H04N19/14 ,  H04N19/146 ,  H04N19/149 ,  H04N19/152 ,  H04N19/154 ,  H04N19/46 ,  H04N19/59 ,  H04N19/94

摘要： Methods and apparatuses for data pruning for video compression using example-based super resolution are provided. A method and apparatus for encoding is provided in which patches of video are extracted from input video, grouped together using a clustering method, and representative patches are packed into patch frames. The original video is downsized and sent either along with, or in addition to, the patch frames. At a decoder, the method and apparatus provided extract patches from the patch frames and create a patch library. The regular video frames are upsized and the low resolution patches are replaced by patches from the patch library by searching the library using the patches in the decoded regular frames as keywords. If there are no appropriate patches, no replacement is made. A post processing procedure is used to enhance the spatiotemporal smoothness of the recovered video.

摘要翻译： 提供了使用基于示例的超分辨率进行视频压缩的数据剪枝的方法和装置。 提供了一种用于编码的方法和装置，其中使用聚类方法从输入视频中提取视频片段，将其分组在一起，并将代表性的片段打包到片段中。 原始视频被缩小，并且或者与补丁帧一起发送。 在解码器中，所提供的方法和装置从补丁帧提取补丁并创建补丁库。 常规视频帧大小，低分辨率补丁由补丁库中的补丁替换，通过使用解码的常规帧中的补丁作为关键字搜索库。 如果没有适当的补丁，则不进行更换。 后处理程序用于增强恢复的视频的时空平滑度。