公开(公告)号：US20070036452A1

公开(公告)日：2007-02-15

申请号：US10571148

申请日：2004-09-22

申请人： Joan Llach ,  Jill Boyce ,  Alexandros Tourapis

发明人： Joan Llach ,  Jill Boyce ,  Alexandros Tourapis

IPC分类号： G06K9/40

CPC分类号： H04N5/262 ,  G06T5/002 ,  G06T5/10 ,  G06T11/001 ,  G06T2207/20021 ,  G06T2207/20052 ,  G06T2207/20204 ,  H04N19/86

摘要： Simulation of film grain in an image can occur by compressing a video image, then transmitting compressed video together with a message containing at least one parameter indicative of the original film grain, to a decoder, and restoring the original grainy appearance of images by having the decoder simulating film grain based on the content of the film grain message. To improve efficiency, one or more parameters of film grain information undergo scaling in accordance with a target pixel block size for pixel blocks in the image. Such scaling allows for the use of conventional circuitry for performing block-based operations in connection with the film grain simulation.

摘要翻译： 图像中的胶片颗粒的模拟可以通过压缩视频图像，然后将压缩视频与包含至少一个表示原始胶片颗粒的参数的消息一起发送到解码器，并且通过使图像恢复原始的颗粒状外观， 基于胶片信息内容的解码器模拟胶片颗粒。 为了提高效率，胶片颗粒信息的一个或多个参数根据图像中的像素块的目标像素块尺寸进行缩放。 这种缩放允许使用常规电路来执行与胶片颗粒模拟相关的基于块的操作。

公开(公告)号：US11380270B2

公开(公告)日：2022-07-05

申请号：US13148819

申请日：2010-02-09

申请人： Jiefu Zhai ,  Joan Llach

发明人： Jiefu Zhai ,  Joan Llach

IPC分类号： G09G3/34

摘要： A method of operating a high dynamic range display device comprises the steps of: accessing an image signal; generating an intermediate backlighting driver signal for individual backlight elements for a backlighting unit responsive to the image signal; convoluting the intermediate backlighting driver signals with a point spread function of the backlighting unit; deriving at least one new backlighting driver signal responsive to the convoluting step; determining display error associated with a plurality of available light shutter signals of a front-end unit having individual light shutters and associated with the at least one new backlighting driver signal, the front-end unit having a higher resolution than the backlighting unit; driving the display device with a combination of shutter signals and new backlighting driver signals that causes a reduction in the display error with respect to other generated intermediate backlighting driver signals and other available light shutter signals.

公开(公告)号：US10070148B2

公开(公告)日：2018-09-04

申请号：US12932062

申请日：2011-02-16

申请人： Hua Yang ,  Richard Edwin Goedeken ,  Joan Llach

发明人： Hua Yang ,  Richard Edwin Goedeken ,  Joan Llach

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/60

摘要： A method and apparatus are disclosed and described for providing bit rate configuration for multi-view video coding. In the video encoder, the method includes encoding image data for at least one picture for at least two joint views of multi-view video content, the at least two joint views including a base view and at least one dependent view. The bit rate configuration for encoding the image data is determined to include an average bit rate and a maximum bit rate for the base view and the average bit rate and the maximum bit rate for the at least two joint views (235, 215, 220).

公开(公告)号：US09992456B2

公开(公告)日：2018-06-05

申请号：US12932055

申请日：2011-02-16

申请人： Jiancong Luo ,  Richard Edwin Goedeken ,  Joan Llach

发明人： Jiancong Luo ,  Richard Edwin Goedeken ,  Joan Llach

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/00

CPC分类号： H04N19/00

摘要： A method and apparatus are disclosed and described for providing hypothetical reference decoder conformance error detection. The apparatus includes a multi-pass encoder (200) for encoding pictures in a video sequence. The pictures are encoded in a first pass to determine a bit consumption of each picture, and a bit allocation is controlled during the encoding of the pictures in at least a second pass responsive to satisfying requirements for a subsequent decoding of the bitstream. The requirements relate to preventing at least one of underflow and overflow conditions in a buffer during the subsequent decoding. The bit allocation is based on the bit consumption determined in the first pass and buffer parameters. The pictures are encoded in at least the first and second passes into a plurality of bitstreams on a scene-basis such that any of the pictures belonging to a same scene are respectively encoded in a same one of the bitstreams.

公开(公告)号：US09813707B2

公开(公告)日：2017-11-07

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 ,  H04N19/105 ,  H04N7/54 ,  H04N19/146 ,  H04N19/152 ,  H04N19/149 ,  H04N19/154 ,  H04N7/01 ,  H04N19/139 ,  H04N19/46 ,  H04N19/14 ,  H04N19/94 ,  H04N19/59

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.

公开(公告)号：US09336578B2

公开(公告)日：2016-05-10

申请号：US13395887

申请日：2010-09-14

申请人： Zhe Wang ,  Jiefu Zhai ,  Joan Llach

发明人： Zhe Wang ,  Jiefu Zhai ,  Joan Llach

IPC分类号： G06T5/00

CPC分类号： G06T5/009 ,  G06T2207/10016 ,  G06T2207/20092 ,  G06T2207/20208

摘要： A user interactive video tone mapping method is provided that can be used for the tone reproduction of high dynamic range (HDR) content on low dynamic range (LDR) displays. The method comprises the steps of selecting a frame of a video sequence; providing a user interface for a user to manually apply scribble marks to the frame; manually applying N scribble marks to the frame, N being a whole number of value 1 or greater; and tone mapping the video sequence responsive to the scribble marks.

摘要翻译： 提供了可用于低动态范围（LDR）显示器上的高动态范围（HDR）内容的色调再现的用户交互式视频色调映射方法。 该方法包括以下步骤：选择视频序列的帧; 提供用户界面以便用户手动地将涂鸦标记应用于所述框架; 手动将N个涂抹标记施加到框架上，N为1或更大的整数; 并且响应于涂鸦标记对视频序列进行色调映射。

公开(公告)号：US08977109B2

公开(公告)日：2015-03-10

申请号：US13516228

申请日：2010-12-10

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

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

IPC分类号： G11B27/00 ,  H04N5/93 ,  G06K9/00 ,  G06K9/03 ,  G06T7/20

CPC分类号： G06K9/00711 ,  G06K9/00335 ,  G06K9/00724 ,  G06K9/033 ,  G06T7/246 ,  G06T2207/10016 ,  G06T2207/30228 ,  G06T2207/30241

摘要： A method and associated apparatus for using a trajectory-based technique to detect a moving object in a video sequence at incorporates human interaction through a user interface. The method comprises steps of identifying and evaluating sets of connected components in a video frame, filtering the list of connected components by comparing features of the connected components to predetermined criteria, identifying candidate trajectories across multiple frames, evaluating the candidate trajectories to determine a selected trajectory, eliminating incorrect trajectories through use of the interface and processing images in said video sequence responsive to the evaluating and eliminating steps.

摘要翻译： 一种用于使用基于轨迹的技术来检测视频序列中的移动对象的方法和相关联的装置，其通过用户界面并入人类交互。 该方法包括以下步骤：识别和评估视频帧中的连接分量集合，通过将所连接分量的特征与预定标准进行比较来过滤所连接分量的列表，识别跨多个帧的候选轨迹，评估候选轨迹以确定所选择的轨迹 通过使用界面消除不正确的轨迹，并响应于评估和消除步骤来处理所述视频序列中的图像。

公开(公告)号：US20130028330A1

公开(公告)日：2013-01-31

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： H04N7/26

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：US20120314029A1

公开(公告)日：2012-12-13

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

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.

摘要翻译： 一种用于将标识插入到立体视频图像中以产生重叠立体图像的方法，所述方法包括：检测所述视频图像中的立体图像的存在，并且当检测到立体图像时，确定所述立体图像的3D格式，所述3D 格式是立体空间复用格式; 生成立体声标志，其包括立体空间多路复用的徽标图像，包括标识的表示，所述立体空间复用的标志图像以所述3D格式排列; 以及组合立体标志和视频图像以产生所述3D格式的叠加立体图像。

公开(公告)号：US20120229604A1

公开(公告)日：2012-09-13

申请号：US13509049

申请日：2009-11-18

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 ,  H04N13/04

CPC分类号： H04N19/597 ,  H04N13/161 ,  H04N13/194 ,  H04N13/243

摘要： Methods and systems for delivering three-dimensional content over a network are disclosed. In accordance with the methods and systems, disparity adjustment of three-dimensional video streams can be made by enabling a receiver to dynamically select among several pairs of left & right views in accordance with user-preferences. Further, Multi-view Video Coding methods and systems are disclosed in which the dynamic selection and adjustment is facilitated by configuring dependencies of enhancement views to reference only base views.

摘要翻译： 公开了一种通过网络传送三维内容的方法和系统。 根据方法和系统，可以通过使接收机能够根据用户偏好在多对左右视图中动态地选择三维视频流的视差调整。 此外，公开了多视图视频编码方法和系统，其中通过将增强视图的依赖性配置为仅引用基本视图来促进动态选择和调整。