公开(公告)号：US20130125155A1

公开(公告)日：2013-05-16

申请号：US13811289

申请日：2011-02-16

申请人： Sitaram Bhagavathy ,  Cristina Gomila

发明人： Sitaram Bhagavathy ,  Cristina Gomila

IPC分类号： H04N21/24

CPC分类号： H04N21/24 ,  G06F3/013 ,  H04N19/102 ,  H04N19/162 ,  H04N19/17 ,  H04N19/33 ,  H04N21/2343 ,  H04N21/42202 ,  H04N21/44218 ,  H04N21/6587

摘要： A Context-Aware Content-Presentation system includes a viewer context feedback for determining the viewer context relative to a display device. A content receiving device controls at least one parameter of video content streamed to the display device from a streaming server in accordance with the viewer context. In this way, when the viewer context allows for lower quality video content, the content receiving device can signal the streaming server to reduce the quality of the video content, thereby saving bandwidth.

摘要翻译： 上下文感知内容呈现系统包括用于确定相对于显示设备的观看者上下文的观看者上下文反馈。 内容接收装置根据观看者上下文从流式传输服务器控制流向显示设备的视频内容的至少一个参数。 以这种方式，当观看者上下文允许较低质量的视频内容时，内容接收装置可以向流服务器发信号以降低视频内容的质量，从而节省带宽。

公开(公告)号：US10194171B2

公开(公告)日：2019-01-29

申请号：US12087355

申请日：2007-01-08

申请人： Yeping Su ,  Peng Yin ,  Cristina Gomila

发明人： Yeping Su ,  Peng Yin ,  Cristina Gomila

IPC分类号： H04N7/12 ,  H04N19/597 ,  H04N19/52 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/109 ,  H04N19/137 ,  H04N19/174 ,  H04N19/573 ,  H04N19/58 ,  H04N19/82 ,  H04N19/10

摘要： There are provided methods and apparatus for multi-view video coding. A video encoder includes an encoder for encoding a block in a picture by choosing between temporal prediction and cross-view prediction to enable a prediction for the block. The picture is one of a set of pictures corresponding to multi-view video content and having different view points with respect to a same or similar scene. The picture represents one of the different view points. A high-level syntax is used to indicate the use of cross-view prediction for the block.

公开(公告)号：US09641842B2

公开(公告)日：2017-05-02

申请号：US12309063

申请日：2007-07-05

申请人： Purvin Bibhas Pandit ,  Yeping Su ,  Peng Yin ,  Cristina Gomila

发明人： Purvin Bibhas Pandit ,  Yeping Su ,  Peng Yin ,  Cristina Gomila

IPC分类号： H04N7/12 ,  H04N19/103 ,  H04N19/597 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/513 ,  H04N19/61

CPC分类号： H04N19/103 ,  H04N19/176 ,  H04N19/46 ,  H04N19/513 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70

摘要： There is disclosed and described a decoder and decoding method for decoding at least one picture corresponding to at least one of at least two views of multi-view video content from a bitstream, wherein in the bitstream at least one of coding order information and output order information for the at least one picture is decoupled from the at least one view to which the at least one picture corresponds. Furthermore, there is disclosed and described an encoder and encoding method for encoding at least one picture corresponding to at least one of at least two views of multi-view video content to form a resultant bitstream, wherein in the resultant bitstream at least one of coding order information and output order information for the at least one picture is decoupled from the at least one view to which the at least one picture corresponds.

公开(公告)号：US09602838B2

公开(公告)日：2017-03-21

申请号：US12312646

申请日：2007-12-05

申请人： Gokce Dane ,  Wuttipong Kumwilaisak ,  Cristina Gomila

发明人： Gokce Dane ,  Wuttipong Kumwilaisak ,  Cristina Gomila

IPC分类号： H04N19/124 ,  H04N19/154 ,  H04N19/194 ,  H04N19/86 ,  H04N19/15 ,  H04N19/61

CPC分类号： H04N19/86 ,  H04N19/124 ,  H04N19/15 ,  H04N19/154 ,  H04N19/194 ,  H04N19/61

摘要： A system and method for correcting artifacts present in video frames is disclosed. The system includes a decision module (110) and an artifact correction unit (120). The system receives artifact metrics (112) and artifact maps (122) corresponding to artifacts present in video frames and prioritizes the video frames to be corrected by considering the type and severity of the artifacts and the content of the video frames (113). Subsequent to prioritizing the video frames, the system corrects artifacts of selected frames by adjusting compressed domain parameters (126), such as quantization parameters and mode decisions. An encoder (130) compresses the video frames according to the adjusted compressed domain parameter to automatically provide a video stream with a lower incidence and severity of artifacts.

公开(公告)号：US09161031B2

公开(公告)日：2015-10-13

申请号：US13138088

申请日：2009-10-21

申请人： Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Cristina Gomila

发明人： Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Cristina Gomila

IPC分类号： H04N11/02 ,  H04N19/136 ,  H04N19/196 ,  H04N19/463 ,  H04N19/119 ,  H04N19/122 ,  H04N19/137 ,  H04N19/176 ,  H04N19/147 ,  H04N19/159 ,  H04N19/61 ,  H04N19/46 ,  H04N19/86

CPC分类号： H04N19/136 ,  H04N19/119 ,  H04N19/12 ,  H04N19/122 ,  H04N19/137 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/197 ,  H04N19/46 ,  H04N19/463 ,  H04N19/61 ,  H04N19/70 ,  H04N19/86

摘要： There are provided methods and apparatus for transform selection in video coding. An apparatus includes a video encoder for encoding at least a block in a picture by selecting a transform to apply to a residue of the block from a set of two or more available transforms. The transform is selected based on at least one of an inter prediction mode used to predict at least one reference for the block, one or more values corresponding to a motion vector, a value of a residue of one or more previously encoded blocks, a value of prediction data for the block, one or more transform selections of one or more neighboring reconstructed blocks, and a quantization step applied to transform coefficients for the residue of the block.

摘要翻译： 提供了视频编码中的变换选择的方法和装置。 一种装置包括：视频编码器，用于通过从一组两个或多个可用变换中选择适用于块的残差的变换来对图像中的至少块进行编码。 基于用于预测块的至少一个参考的帧间预测模式，对应于运动矢量的一个或多个值，一个或多个先前编码块的残差的值，值 用于块的预测数据，一个或多个相邻重构块的一个或多个变换选择，以及应用于变换块的残差的系数的量化步长。

公开(公告)号：US09001889B2

公开(公告)日：2015-04-07

申请号：US13319779

申请日：2010-05-12

申请人： Xiaoan Lu ,  Qian Xu ,  Cristina Gomila

发明人： Xiaoan Lu ,  Qian Xu ,  Cristina Gomila

IPC分类号： H04N11/04 ,  H04N19/179 ,  H04N19/159 ,  H04N19/176 ,  H04N19/172 ,  H04N19/124 ,  H04N19/14 ,  H04N19/174 ,  H04N19/17

CPC分类号： H04N19/179 ,  H04N19/124 ,  H04N19/14 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176

摘要： There are provided methods and apparatus for improved quantization rounding offset adjustment for video encoding and decoding. An apparatus includes a video encoder for encoding an input coding unit by determining a residual for the input coding unit corresponding to a difference between the input coding unit and a reference coding unit, applying a transform to the residual to obtain at least one transform coefficient, and quantizing the at least one transform coefficient by selecting a particular quantization step size and a rounding offset.

摘要翻译： 提供了用于改进用于视频编码和解码的量化舍入偏移调整的方法和装置。 一种装置，包括：视频编码器，用于通过确定与输入编码单元和参考编码单元之间的差异对应的输入编码单元的残差来对输入编码单元进行编码，向残差应用变换以获得至少一个变换系数， 以及通过选择特定的量化步长和舍入偏移量化所述至少一个变换系数。

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：US08238613B2

公开(公告)日：2012-08-07

申请号：US10575676

申请日：2004-10-12

申请人： Jill MacDonald Boyce ,  Cristina Gomila ,  Joan Llach ,  Alexandros Michael Tourapis ,  Jeffrey Allen Cooper ,  Peng Yin

发明人： Jill MacDonald Boyce ,  Cristina Gomila ,  Joan Llach ,  Alexandros Michael Tourapis ,  Jeffrey Allen Cooper ,  Peng Yin

IPC分类号： G06K9/00

CPC分类号： H04N5/262 ,  G06T5/002 ,  G06T5/10 ,  G06T2207/20021 ,  G06T2207/20052 ,  G06T2207/20204 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/85

摘要： The simulation of film grain in an image makes use of parameters contained in a Supplemental Enhancement Information (SEI) message that accompanies the image upon transmission. The SEI message specifies film grain simulation parameters such as the film simulation model, the blending mode, and color space.

摘要翻译： 图像中的胶片颗粒的模拟利用包含在补充增强信息（SEI）消息中的参数，该信息伴随着传输时的图像。 SEI消息指定胶片模拟参数，如电影模拟模型，混合模式和颜色空间。

公开(公告)号：US20120051421A1

公开(公告)日：2012-03-01

申请号：US13319779

申请日：2010-05-12

申请人： Xiaoan Lu ,  Qian Xu ,  Cristina Gomila

发明人： Xiaoan Lu ,  Qian Xu ,  Cristina Gomila

IPC分类号： H04N7/26

CPC分类号： H04N19/179 ,  H04N19/124 ,  H04N19/14 ,  H04N19/159 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176

摘要： There are provided methods and apparatus for improved quantization rounding offset adjustment for video encoding and decoding. An apparatus includes a video encoder for encoding an input coding unit by determining a residual for the input coding unit corresponding to a difference between the input coding unit and a reference coding unit, applying a transform to the residual to obtain at least one transform coefficient, and quantizing the at least one transform coefficient by selecting a particular quantization step size and a rounding offset.

摘要翻译： 提供了用于改进用于视频编码和解码的量化舍入偏移调整的方法和装置。 一种装置，包括：视频编码器，用于通过确定与输入编码单元和参考编码单元之间的差异对应的输入编码单元的残差来对输入编码单元进行编码，向残差应用变换以获得至少一个变换系数， 以及通过选择特定的量化步长和舍入偏移量化所述至少一个变换系数。

公开(公告)号：US07852409B2

公开(公告)日：2010-12-14

申请号：US11273067

申请日：2005-11-14

申请人： Cristina Gomila ,  Joan Llach ,  Jeffrey Allen Cooper ,  Jill MacDonald Boyce

发明人： Cristina Gomila ,  Joan Llach ,  Jeffrey Allen Cooper ,  Jill MacDonald Boyce

IPC分类号： G06F7/58 ,  H04N9/74

CPC分类号： G06F7/582 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N19/85

摘要： There are provided methods and apparatus for bit-accurate seed initialization for pseudo-random number generators used in a video system. A method includes the steps of creating (205) a look-up table of PRNG seeds, and initializing (210) one of the PRNG seeds from the look-up table for a picture by accessing the look-up table using a value corresponding to an order of the picture.

摘要翻译： 提供了用于在视频系统中使用的伪随机数发生器的比特精确种子初始化的方法和装置。 一种方法包括以下步骤：创建（205）PRNG种子的查找表，以及通过使用对应于...的值访问查找表，从图形的查找表中初始化（210）PRNG种子之一 照片的顺序。