公开(公告)号：US09338467B1

公开(公告)日：2016-05-10

申请号：US13185272

申请日：2011-07-18

Applicant: Krishna K. Gadepalli ,  Christophe Chaland ,  Rushabh A. Doshi ,  Huisheng Wang ,  Wendy Tobagus ,  Vijnan Shastri ,  Debargha Mukherjee

Inventor： Krishna K. Gadepalli ,  Christophe Chaland ,  Rushabh A. Doshi ,  Huisheng Wang ,  Wendy Tobagus ,  Vijnan Shastri ,  Debargha Mukherjee

IPC: H04N19/40 ,  H04N19/85

CPC classification number: H04N19/436 ,  H04N19/127 ,  H04N19/14 ,  H04N19/184 ,  H04N19/40 ,  H04N19/85

Abstract: A system and method provides transcoding a video in parallel by multiple transcoders based on a measure of video coding complexity (VCC). The system has a video pre-processing module, a master transcoder, a transcoding controller and multiple transcoders. The video pre-processing module transcodes a source video into an intermediate video. The master transcoder partitions the intermediate video into multiple transcoding units, where a transcoding unit identifies a portion of data of the intermediate video for transcoding. The master transcoder further generates a transcoding request for each transcoding unit. The transcoding controller distributes the transcoding units to the multiple transcoders, which transcode the data of the transcoding units in parallel into transcoded data.

Abstract translation: 基于视频编码复杂度（VCC）的测量，系统和方法通过多个代码转换器并行地对视频进行代码转换。 该系统具有视频预处理模块，主代码转换器，代码转换控制器和多个代码转换器。 视频预处理模块将源视频转码为中间视频。 主代码转换器将中间视频分割成多个代码转换单元，其中代码转换单元识别用于代码转换的中间视频的一部分数据。 主代码转换器还为每个代码转换单元生成代码转换请求。 代码转换控制器将代码转换单元分配给多个代码转换器，其将代码转换单元的数据并行转码为代码转换的数据。

公开(公告)号：US08682144B1

公开(公告)日：2014-03-25

申请号：US13621604

申请日：2012-09-17

Applicant: Jiangyang Zhang ,  Anil Kokaram ,  Debargha Mukherjee ,  Andrew Joseph Crawford ,  Damien Kelly

Inventor： Jiangyang Zhang ,  Anil Kokaram ,  Debargha Mukherjee ,  Andrew Joseph Crawford ,  Damien Kelly

IPC: G11B27/00 ,  H04N5/93 ,  H04N5/931 ,  H04N5/932 ,  H04N5/935

CPC classification number: G11B27/28 ,  G06K9/00765 ,  G06K9/6277 ,  G06K9/6292 ,  G10H1/368 ,  G10L25/06 ,  G10L25/57 ,  G11B27/10

Abstract: Provided are methods for synchronizing multiple video recordings of the same event using audio signals of the recordings. An algorithm is designed to generate candidate time offsets for pairwise matches of video recordings based on audio signals corresponding to the recordings, and combine the candidate time offsets to obtain the most accurate actual time offset between each pair of recordings. Each candidate time offset for each pairwise match of recordings is assigned a confidence measure indicating how likely it is that the particular time offset is correct for the given pair of recordings. The confidence measure assigned to a particular time offset is based on various components and characteristics of the audio signal pair corresponding to the video recordings.

Abstract translation: 提供了使用记录的音频信号同步相同事件的多个视频记录的方法。 一种算法被设计为基于与记录相对应的音频信号来生成视频记录的成对匹配的候选时间偏移，并且组合候选时间偏移以获得每对记录之间最准确的实际时间偏移。 为记录的每个成对匹配的每个候选时间偏移量分配一个置信度量度，指示特定时间偏移对给定的一对记录是否正确的可能性。 分配给特定时间偏移的置信度基于对应于视频记录的音频信号对的各种组件和特性。

公开(公告)号：US08644596B1

公开(公告)日：2014-02-04

申请号：US13527415

申请日：2012-06-19

Applicant: Chen Wu ,  Debargha Mukherjee ,  Meng Wang

Inventor： Chen Wu ,  Debargha Mukherjee ,  Meng Wang

IPC: G06K9/00 ,  G06K9/62

CPC classification number: G06K9/00201 ,  G06K9/00208 ,  G06T7/593 ,  G06T2207/10021 ,  G06T2207/10024 ,  G06T2207/20228

Abstract: An image converter compiles three-dimensional content into a data store, identifies a number of stereo image pairs from the three-dimensional content, computes a depth map for each of the stereo image pairs from the three-dimensional content, and partitions the stereo image pairs in the data store into multiple categories. The image converter determines a depth cue for each of the categories based on the depth map for each of the stereo image pairs in each category. The image converter computes a depth map for a category associated with a two-dimensional input image based on the determined depth cue and renders a three-dimensional output image from the two-dimensional input image using the depth map for the category.

Abstract translation: 图像转换器将三维内容编译成数据存储，从三维内容识别多个立体图像对，从三维内容计算每个立体图像对的深度图，并分割立体图像 将数据存储分成多个类别。 图像转换器基于每个类别中的每个立体图像对的深度图来确定每个类别的深度提示。 图像转换器基于所确定的深度提示来计算与二维输入图像相关联的类别的深度图，并使用该类别的深度图从二维输入图像呈现三维输出图像。

公开(公告)号：US08391370B1

公开(公告)日：2013-03-05

申请号：US12402452

申请日：2009-03-11

Applicant: Debargha Mukherjee ,  Wai-Tian Tan ,  Chuohao Yeo

Inventor： Debargha Mukherjee ,  Wai-Tian Tan ,  Chuohao Yeo

IPC: H04N7/32 ,  H04N7/68 ,  H04N11/02

CPC classification number: H04N19/395 ,  H04N19/166 ,  H04N19/33 ,  H04N19/895

Abstract: Decoding video data. Receive a first video stream including a first plurality of frames encoded at a first resolution, a second video stream including a second plurality of frames encoded at a second resolution and a residual bitstream encoded at a third resolution. The second plurality of frames correspond to the first plurality of frames encoded at the first resolution and the first resolution is greater than the second resolution and the third resolution is at least between the first and second resolutions. Side information determined based at least on the first plurality of frames and the second plurality of frames. The video data decoded based at least on one received frame of the first plurality of frames, at least one received frame of the second plurality of frames encoded at the second resolution, the residual bitstream encoded at the third resolution, and the side information.

Abstract translation: 解码视频数据。 接收包括以第一分辨率编码的第一多个帧的第一视频流，包括以第二分辨率编码的第二多个帧的第二视频流和以第三分辨率编码的残留比特流。 第二多个帧对应于以第一分辨率编码的第一多个帧，并且第一分辨率大于第二分辨率，并且第三分辨率至少在第一和第二分辨率之间。 至少基于第一多个帧和第二多个帧确定的侧信息。 基于第一多个帧的至少一个接收帧，以第二分辨率编码的第二多个帧中的至少一个接收帧，以第三分辨率编码的残留比特流和边信息解码的视频数据。

公开(公告)号：US08375082B2

公开(公告)日：2013-02-12

申请号：US10418533

申请日：2003-04-17

Applicant: Debargha Mukherjee

Inventor： Debargha Mukherjee

IPC: G06F15/16

CPC classification number: H04L12/1813

Abstract: Collaboration session communications methods, methods of configuring a plurality of collaboration sessions, communications methods, collaboration infrastructures, and communications systems are described. According to one aspect, a collaboration session communications method includes coupling a plurality of groups of participants with a collaboration infrastructure, providing a plurality of communications rules to the collaboration infrastructure to control communications of data within a collaboration session, outputting a communication from a first one of the groups for communication to a second one of the groups, receiving the communication within the collaboration infrastructure after the providing, identifying the communication as originating from the first one of the groups and intended for communication to the second one of the groups, and forwarding the communication to a third one of the groups using the collaboration infrastructure and responsive to the identifying and in accordance with one of the communications rules.

Abstract translation: 描述协作会话通信方法，配置多个协作会话的方法，通信方法，协作基础设施和通信系统。 根据一个方面，协作会话通信方法包括将多个参与者组与协作基础设施耦合，向协作基础设施提供多个通信规则以控制协作会话内的数据的通信，从第一个 用于与组中的第二组进行通信的组，在提供之后接收协作基础设施内的通信，将来自第一组中的第一组的通信识别并且用于与组中的第二组进行通信，以及转发 使用协作基础设施与响应于识别并根据通信规则之一的组中的第三组进行通信。

公开(公告)号：US20090034619A1

公开(公告)日：2009-02-05

申请号：US11888135

申请日：2007-07-31

Applicant: Debargha Mukherjee ,  Yuxin Liu

Inventor： Debargha Mukherjee ,  Yuxin Liu

IPC: H04B1/66

CPC classification number: H04N19/14 ,  H04N19/105 ,  H04N19/115 ,  H04N19/147 ,  H04N19/172 ,  H04N19/176

Abstract: Techniques for adapting an encoded video signal to a complexity of video encoding may be used to reduce a bit rate of an encoded video signal when the complexity is reduced. Video communication according to the present techniques includes adapting an encoded video signal to an encoding complexity used to derive a set of encoded data from a series of video frames.

Abstract translation: 当将复杂度降低时，用于使编码视频信号适应视频编码复杂度的技术可用于降低编码视频信号的比特率。 根据本技术的视频通信包括使编码视频信号适应于用于从一系列视频帧中导出一组编码数据的编码复杂度。

公开(公告)号：US07483535B2

公开(公告)日：2009-01-27

申请号：US10940961

申请日：2004-09-15

Applicant: Debargha Mukherjee ,  Huisheng Wang

Inventor： Debargha Mukherjee ,  Huisheng Wang

IPC: H04K1/00 ,  H04L9/00

CPC classification number: H04L9/0637 ,  H04L9/065 ,  H04L2209/12 ,  H04L2209/20

Abstract: A method of encrypting a transmission unit of a generalized scalable bit-stream includes, for each atom of the transmission unit, concatenating bit-stream segments that map to the atom to obtain data for each atom. The data for a logically first atom of the plurality of atoms of the multi-dimensional scalable representation is encrypted using an initialization input to produce an encryption output seed of the logically first atom and an encrypted logically first atom. In addition, the data of other atoms are encrypted to produce encrypted other atoms and an encryption output seed of each encrypted other atom. Encryption of a particular atom of the other atoms includes using encryption output seeds of adjacent causal atoms of the particular atom as an encryption input seed for encrypting the particular atom.

Abstract translation: 对广义可缩放比特流的发送单元进行加密的方法包括：对于发送单元的每个原子，映射到原子的级联比特流段，以获得每个原子的数据。 使用初始化输入来加密多维可缩放表示的多个原子中的逻辑上第一个原子的数据，以产生逻辑上第一个原子的加密输出种子和加密的逻辑上第一个原子。 此外，其他原子的数据被加密以产生加密的其他原子和每个加密的其他原子的加密输出种子。 加密其他原子的特定原子包括使用特定原子的相邻因果原子的加密输出种子作为用于加密特定原子的加密输入种子。

公开(公告)号：US20080152009A1

公开(公告)日：2008-06-26

申请号：US11643130

申请日：2006-12-21

Applicant: Emrah Akyol ,  Debargha Mukherjee

Inventor： Emrah Akyol ,  Debargha Mukherjee

IPC: H04N7/32 ,  H04N7/26

CPC classification number: H04N19/557 ,  H04N19/103 ,  H04N19/146 ,  H04N19/156 ,  H04N19/164 ,  H04N19/196 ,  H04N19/523 ,  H04N19/61

Abstract: Video encoding that enables fine-grained control over the complexity of motion estimation to meet encoding constraints includes scaling a set of complexity control parameters in response to an encoding constraint and encoding the video in response to the complexity control parameters.

Abstract translation: 能够对运动估计的复杂度进行细粒度控制以满足编码约束的视频编码包括响应于编码约束来缩放一组复杂度控制参数并响应于复杂度控制参数对视频进行编码。

公开(公告)号：US20070253479A1

公开(公告)日：2007-11-01

申请号：US11415258

申请日：2006-04-30

Applicant: Debargha Mukherjee

Inventor： Debargha Mukherjee

IPC: H04B1/66 ,  H04N7/12

CPC classification number: H03M7/30 ,  H04N19/12 ,  H04N19/159 ,  H04N19/172 ,  H04N19/192 ,  H04N19/395 ,  H04N19/46 ,  H04N19/59 ,  H04N19/61

Abstract: Various embodiments of the present invention include compression/decompression methods, systems, and devices that adjust a division of a total computational complexity of compression and decompression between encoding and decoding. These embodiments include an encoder that encodes a received signal at a selectable level of computational complexity and a decoder that decodes a received, encoded signal at a selectable level computational complexity. Video-codec embodiments of the present invention may be incorporated into relatively inexpensive video-recording devices, including hand-held, video-recording consumer devices such as video recorders and cell phones.

Abstract translation: 本发明的各种实施例包括压缩/解压缩方法，系统和装置，其调节编码和解码之间的压缩和解压缩的总计算复杂度的划分。 这些实施例包括以可选择的计算复杂度水平编码接收信号的编码器和以可选择的级别计算复杂度对接收的编码信号进行解码的解码器。 本发明的视频编解码器实施例可以并入相对便宜的视频记录设备中，包括手持式视频记录消费者设备，诸如录像机和手机。

公开(公告)号：US07027647B2

公开(公告)日：2006-04-11

申请号：US10036979

申请日：2001-12-31

Applicant: Debargha Mukherjee ,  Nasir Memon ,  Amir Said

Inventor： Debargha Mukherjee ,  Nasir Memon ,  Amir Said

IPC: G06K9/34

CPC classification number: G06K9/00456 ,  G06T9/00 ,  H04N1/40062 ,  H04N1/41 ,  H04N1/415 ,  Y02E50/14

Abstract: Methods for decomposing compound documents for mixed raster content representation are provided. A method for decomposing an image includes the step of decomposing the image into a plurality of stripes. Each stripe is decomposed into foreground, background, and mask layers. The layers are interpolated to modify values of irrelevant pixels in order to achieve more efficient compression. The layers may subsequently be compressed with a coder.