-
公开(公告)号:US20120294360A1
公开(公告)日:2012-11-22
申请号:US13552808
申请日:2012-07-19
申请人: Gordon Kent Walker , Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian , Fang Shi , Scott T. Swazey , Seyfullah Halit Oguz , Amit Rohatgi , Sitaraman Ganapathy Subramanian , PhaniKumar Bhamidipati
发明人: Gordon Kent Walker , Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian , Fang Shi , Scott T. Swazey , Seyfullah Halit Oguz , Amit Rohatgi , Sitaraman Ganapathy Subramanian , PhaniKumar Bhamidipati
IPC分类号: H04N7/26
CPC分类号: H04N21/4384 , H04N19/107 , H04N19/124 , H04N19/154 , H04N19/164 , H04N19/172 , H04N19/187 , H04N19/33 , H04N19/61 , H04N19/895 , H04N21/23439 , H04N21/631 , H04N21/8451 , H04N21/8456
摘要: Methods and apparatus to process multimedia data enabling faster channel acquisitions, improved error recovery and improved efficiency. An encoder device encodes a first portion of multimedia data using inter-coding to generate a first version, and encodes the first portion of multimedia data using intra-coding to generate a second version. A decoder device receives a first version of a first portion of multimedia data, wherein the first version is inter-coded, receives a second version of the first portion of multimedia data, wherein the second version is intra-coded, and selectively decodes the first and second received versions.
摘要翻译: 处理多媒体数据的方法和设备,可实现更快的信道采集,改进误差恢复和提高效率。 编码器装置使用帧间编码对多媒体数据的第一部分进行编码以产生第一版本,并且使用帧内编码对多媒体数据的第一部分进行编码以生成第二版本。 解码器装置接收多媒体数据的第一部分的第一版本,其中第一版本是帧间编码的,接收多媒体数据的第一部分的第二版本,其中第二版本被帧内编码,并且选择性地解码第一版本 和第二个接收的版本。
-
公开(公告)号:US08612498B2
公开(公告)日:2013-12-17
申请号:US13552808
申请日:2012-07-19
申请人: Gordon Kent Walker , Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian , Fang Shi , Scott T. Swazey , Seyfullah Halit Oguz , Amit Rohatgi , Sitaraman Ganapathy Subramanian , Phanikumar Bhamidipati
发明人: Gordon Kent Walker , Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian , Fang Shi , Scott T. Swazey , Seyfullah Halit Oguz , Amit Rohatgi , Sitaraman Ganapathy Subramanian , Phanikumar Bhamidipati
CPC分类号: H04N21/4384 , H04N19/107 , H04N19/124 , H04N19/154 , H04N19/164 , H04N19/172 , H04N19/187 , H04N19/33 , H04N19/61 , H04N19/895 , H04N21/23439 , H04N21/631 , H04N21/8451 , H04N21/8456
摘要: Methods and apparatus to process multimedia data enabling faster channel acquisitions, improved error recovery and improved efficiency. An encoder device encodes a first portion of multimedia data using inter-coding to generate a first version, and encodes the first portion of multimedia data using intra-coding to generate a second version. A decoder device receives a first version of a first portion of multimedia data, wherein the first version is inter-coded, receives a second version of the first portion of multimedia data, wherein the second version is intra-coded, and selectively decodes the first and second received versions.
摘要翻译: 处理多媒体数据的方法和设备,可实现更快的信道采集,改进误差恢复和提高效率。 编码器装置使用帧间编码对多媒体数据的第一部分进行编码以产生第一版本,并且使用帧内编码对多媒体数据的第一部分进行编码以生成第二版本。 解码器装置接收多媒体数据的第一部分的第一版本,其中第一版本是帧间编码的,接收多媒体数据的第一部分的第二版本,其中第二版本被帧内编码,并且选择性地解码第一版本 和第二个接收的版本。
-
公开(公告)号:US08229983B2
公开(公告)日:2012-07-24
申请号:US11527306
申请日:2006-09-25
申请人: Gordon Kent Walker , Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian , Fang Shi , Scott T. Swazey , Seyfullah Halit Oguz , Amit Rohatgi , Sitaraman Ganapathy Subramania , Phanikumar Bhamidipati
发明人: Gordon Kent Walker , Vijayalakshmi R. Raveendran , Peisong Chen , Tao Tian , Fang Shi , Scott T. Swazey , Seyfullah Halit Oguz , Amit Rohatgi , Sitaraman Ganapathy Subramania , Phanikumar Bhamidipati
CPC分类号: H04N21/4384 , H04N19/107 , H04N19/124 , H04N19/154 , H04N19/164 , H04N19/172 , H04N19/187 , H04N19/33 , H04N19/61 , H04N19/895 , H04N21/23439 , H04N21/631 , H04N21/8451 , H04N21/8456
摘要: Methods and apparatus to process multimedia data enabling faster channel acquisitions, improved error recovery and improved efficiency. An encoder device encodes a first portion of multimedia data using inter-coding to generate a first version, and encodes the first portion of multimedia data using intra-coding to generate a second version. A decoder device receives a first version of a first portion of multimedia data, wherein the first version is inter-coded, receives a second version of the first portion of multimedia data, wherein the second version is intra-coded, and selectively decodes the first and second received versions.
摘要翻译: 处理多媒体数据的方法和设备,可实现更快的信道采集,改进误差恢复和提高效率。 编码器装置使用帧间编码对多媒体数据的第一部分进行编码以产生第一版本,并且使用帧内编码对多媒体数据的第一部分进行编码以生成第二版本。 解码器装置接收多媒体数据的第一部分的第一版本,其中第一版本是帧间编码的,接收多媒体数据的第一部分的第二版本,其中第二版本被帧内编码,并且选择性地解码第一版本 和第二个接收的版本。
-
公开(公告)号:US08594187B2
公开(公告)日:2013-11-26
申请号:US11777395
申请日:2007-07-13
申请人: Peisong Chen , Phanikumar Bhamidipati , Sitaraman Ganapathy Subramania , Amit Rohatgi , Seyfullah Halit Oguz , Scott T. Swazey
发明人: Peisong Chen , Phanikumar Bhamidipati , Sitaraman Ganapathy Subramania , Amit Rohatgi , Seyfullah Halit Oguz , Scott T. Swazey
IPC分类号: H04N11/02
CPC分类号: H04N19/194 , H04N19/109 , H04N19/124 , H04N19/147 , H04N19/15 , H04N19/164 , H04N19/176 , H04N19/19 , H04N19/61
摘要: This disclosure describes techniques for second pass video coding in a multi-pass video coding scenario. The coding modes for some video blocks encoded during a second pass may be changed relative to the coding modes used for such video blocks in the first pass. However, motion information does not change for those video blocks that have the changed modes. In particular, mode changes can be made in the second coding pass relative to the modes used in the first coding pass without changing the manner in which motion information will be derived at the decoder, e.g., due to similarities between the original modes of the first pass and changed modes used in the second pass. The second pass coding techniques may also include quantization parameter adjustments, and the mode changes can cause such quantization parameter adjustments to have more profound refinements effects on the second pass coding.
摘要翻译: 本公开描述了在多遍视频编码场景中的第二遍视频编码的技术。 在第二遍期间编码的一些视频块的编码模式可以相对于在第一遍中用于这种视频块的编码模式而改变。 但是,对于那些具有改变模式的视频块,运动信息不会改变。 特别地,相对于在第一编码通道中使用的模式,可以在第二编码通过中进行模式改变,而不改变在解码器处将导出运动信息的方式,例如,由于第一编码 第二次通过中使用的通过和更改模式。 第二遍编码技术还可以包括量化参数调整,并且模式改变可以导致这样的量化参数调整对第二遍编码具有更深刻的细化效果。
-
公开(公告)号:US20080212677A1
公开(公告)日:2008-09-04
申请号:US11777395
申请日:2007-07-13
申请人: Peisong Chen , Phanikumar Bhamidipati , Sitaraman Ganapathy Subramania , Amit Rohatgi , Seyfullah Halit Oguz , Scott T. Swazey
发明人: Peisong Chen , Phanikumar Bhamidipati , Sitaraman Ganapathy Subramania , Amit Rohatgi , Seyfullah Halit Oguz , Scott T. Swazey
IPC分类号: H04N11/02
CPC分类号: H04N19/194 , H04N19/109 , H04N19/124 , H04N19/147 , H04N19/15 , H04N19/164 , H04N19/176 , H04N19/19 , H04N19/61
摘要: This disclosure describes techniques for second pass video coding in a multi-pass video coding scenario. The coding modes for some video blocks encoded during a second pass may be changed relative to the coding modes used for such video blocks in the first pass. However, motion information does not change for those video blocks that have the changed modes. In particular, mode changes can be made in the second coding pass relative to the modes used in the first coding pass without changing the manner in which motion information will be derived at the decoder, e.g., due to similarities between the original modes of the first pass and changed modes used in the second pass. The second pass coding techniques may also include quantization parameter adjustments, and the mode changes can cause such quantization parameter adjustments to have more profound refinements effects on the second pass coding.
摘要翻译: 本公开描述了在多遍视频编码场景中的第二遍视频编码的技术。 在第二遍期间编码的一些视频块的编码模式可以相对于在第一遍中用于这种视频块的编码模式而改变。 但是,对于那些具有改变模式的视频块,运动信息不会改变。 特别地,相对于在第一编码通道中使用的模式,可以在第二编码通过中进行模式改变,而不改变在解码器处将导出运动信息的方式,例如,由于第一编码 第二次通过中使用的通过和更改模式。 第二遍编码技术还可以包括量化参数调整,并且模式改变可以导致这样的量化参数调整对第二遍编码具有更深刻的细化效果。
-
公开(公告)号:US20080273810A1
公开(公告)日:2008-11-06
申请号:US11744762
申请日:2007-05-04
申请人: Sitaraman Ganapathy Subramania , Fang Shi , Peisong Chen , Seyfullah Halit Oguz , Scott T. Swazey , Vinod Kaushik
发明人: Sitaraman Ganapathy Subramania , Fang Shi , Peisong Chen , Seyfullah Halit Oguz , Scott T. Swazey , Vinod Kaushik
IPC分类号: G06K9/38
CPC分类号: H04N19/184 , H04N19/124 , H04N19/132 , H04N19/147 , H04N19/149 , H04N19/176 , H04N19/61
摘要: This disclosure describes techniques for coding mode selection using estimated coding costs. To provide high compression efficiency, for example, an encoding device may attempt to select a coding mode for coding blocks of pixels that codes the data of the blocks with high efficiency. To this end, the encoding device may perform coding mode selection based on estimates of coding cost for at least a portion of the possible modes. In accordance with the techniques described herein, the encoding device estimates the coding cost for the different modes without actually coding the blocks. In fact, in some aspects, the encoding module device may estimate the coding cost for the modes without quantizing the data of the block for each mode. In this manner, the coding cost estimation techniques of this disclosure reduce the amount of computationally intensive calculations needed to perform effective mode selection.
摘要翻译: 本公开描述了使用估计编码成本来编码模式选择的技术。 为了提供高压缩效率,例如,编码装置可以尝试选择用于编码以高效率编码块的数据的像素块的编码模式。 为此,编码装置可以基于对可能模式的至少一部分的编码成本的估计来执行编码模式选择。 根据本文描述的技术,编码设备估计不同模式的编码成本,而不对块进行实际编码。 事实上,在一些方面,编码模块设备可以估计模式的编码成本,而不对每种模式的块的数据进行量化。 以这种方式,本公开的编码成本估计技术减少了执行有效模式选择所需的计算密集计算量。
-
公开(公告)号:US08150172B2
公开(公告)日:2012-04-03
申请号:US11744762
申请日:2007-05-04
申请人: Sitaraman Ganapathy Subramania , Fang Shi , Peisong Chen , Seyfullah Halit Oguz , Scott T. Swazey , Vinod Kaushik
发明人: Sitaraman Ganapathy Subramania , Fang Shi , Peisong Chen , Seyfullah Halit Oguz , Scott T. Swazey , Vinod Kaushik
CPC分类号: H04N19/184 , H04N19/124 , H04N19/132 , H04N19/147 , H04N19/149 , H04N19/176 , H04N19/61
摘要: A method and system for coding mode selection using estimated coding costs. To provide high compression efficiency, for example, an encoding device may attempt to select a coding mode for coding blocks of pixels that codes the data of the blocks with high efficiency. To this end, the encoding device may perform coding mode selection based on estimates of coding cost for at least a portion of the possible modes. The encoding device may estimate the coding cost for the different modes without actually coding the blocks. In fact, in some aspects, the encoding module device may estimate the coding cost for the modes without quantizing the data of the block for each mode. In this manner, the coding cost estimation techniques may reduce the amount of computationally intensive calculations needed to perform effective mode selection.
摘要翻译: 一种使用估计编码成本对模式选择进行编码的方法和系统。 为了提供高压缩效率,例如,编码装置可以尝试选择用于编码以高效率编码块的数据的像素块的编码模式。 为此,编码装置可以基于对可能模式的至少一部分的编码成本的估计来执行编码模式选择。 编码装置可以在不实际编码块的情况下估计不同模式的编码成本。 事实上,在一些方面,编码模块设备可以估计模式的编码成本,而不对每种模式的块的数据进行量化。 以这种方式,编码成本估计技术可以减少执行有效模式选择所需的计算密集计算量。
-
公开(公告)号:US20080170564A1
公开(公告)日:2008-07-17
申请号:US11940122
申请日:2007-11-14
申请人: Fang Shi , Christopher John Bennett , Serafim S. Loukas , Brian William Orr , Vijayalakshmi R. Raveendran , Scott T. Swazey , Amnon Silberger , Thadi M. Nagaraj , Gordon Kent Walker , David Brackman , Fang Liu , Sumeet Singh Sethi , Ramkumar Sampathkumar
发明人: Fang Shi , Christopher John Bennett , Serafim S. Loukas , Brian William Orr , Vijayalakshmi R. Raveendran , Scott T. Swazey , Amnon Silberger , Thadi M. Nagaraj , Gordon Kent Walker , David Brackman , Fang Liu , Sumeet Singh Sethi , Ramkumar Sampathkumar
CPC分类号: H04N21/44016 , H04N19/107 , H04N19/187 , H04N19/31 , H04N19/61 , H04N19/68 , H04N19/70 , H04N19/89 , H04N21/23424 , H04N21/234327 , H04N21/4384 , H04N21/8451 , H04N21/8456
摘要: Techniques for video encoding and decoding channel switch frames (CSF) to enable acquisition and re/synchronization of the video stream while preserving compression efficiency is provided. Systems and methods to process multimedia data enabling channel switching are presented. The systems generate a CSF with one or more network adaptation layer (NAL) units as a random access point (RAP) frame. Back-to-back frames are transmitted which include the CSF and a non-RAP frame, each having the same frame ID number.
摘要翻译: 提供了视频编码和解码通道切换帧(CSF)的技术,以实现视频流的获取和再同步,同时保持压缩效率。 提出了处理能够进行通道切换的多媒体数据的系统和方法。 系统产生具有一个或多个网络适配层(NAL)单元的CSF作为随机接入点(RAP)帧。 发送背靠背帧,其包括CSF和非RAP帧,每个帧具有相同的帧ID号。
-
公开(公告)号:US08345743B2
公开(公告)日:2013-01-01
申请号:US11940122
申请日:2007-11-14
申请人: Fang Shi , Christopher John Bennett , Serafim S. Loukas, Jr. , Brian William Orr , Vijayalakshmi R. Raveendran , Scott T. Swazey , Amnon Silberger , Thadi M. Nagaraj , Gordon Kent Walker , David Brackman , Fang Liu , Sumeet Singh Sethi , Ramkumar Sampathkumar
发明人: Fang Shi , Christopher John Bennett , Serafim S. Loukas, Jr. , Brian William Orr , Vijayalakshmi R. Raveendran , Scott T. Swazey , Amnon Silberger , Thadi M. Nagaraj , Gordon Kent Walker , David Brackman , Fang Liu , Sumeet Singh Sethi , Ramkumar Sampathkumar
IPC分类号: H04B1/66
CPC分类号: H04N21/44016 , H04N19/107 , H04N19/187 , H04N19/31 , H04N19/61 , H04N19/68 , H04N19/70 , H04N19/89 , H04N21/23424 , H04N21/234327 , H04N21/4384 , H04N21/8451 , H04N21/8456
摘要: Techniques for video encoding and decoding channel switch frames (CSF) to enable acquisition and re/synchronization of the video stream while preserving compression efficiency is provided. Systems and methods to process multimedia data enabling channel switching are presented. The systems generate a CSF with one or more network adaptation layer (NAL) units as a random access point (RAP) frame. Back-to-back frames are transmitted which include the CSF and a non-RAP frame, each having the same frame ID number.
摘要翻译: 提供了视频编码和解码通道切换帧(CSF)的技术,以实现视频流的获取和再同步,同时保持压缩效率。 提出了处理能够进行通道切换的多媒体数据的系统和方法。 系统产生具有一个或多个网络适配层(NAL)单元的CSF作为随机接入点(RAP)帧。 发送背靠背帧,其包括CSF和非RAP帧,每个帧具有相同的帧ID号。
-
公开(公告)号:US20090154816A1
公开(公告)日:2009-06-18
申请号:US11957582
申请日:2007-12-17
IPC分类号: G06K9/36
CPC分类号: H04N19/40 , H04N19/114 , H04N19/142 , H04N19/177 , H04N19/61 , H04N19/87
摘要: This disclosure is directed to techniques for determining a picture type for each of a plurality of frames included in a video sequence based on cross-correlations between the frames. The cross-correlations include first order cross-correlations between image information within pairs of frames included in the video sequence and second order cross-correlations between pairs of the first order cross-correlations. The first order cross-correlations may be analyzed to detect video transitional effects between the frames. The first and second order cross-correlations may be comparatively analyzed to determine temporal similarities between the frames. Therefore, the correlation-based determination techniques determine picture types for the frames based on the video transitional effects and the temporal similarities. The correlation-based determination techniques may calculate the first order cross-correlations between images within pairs of frames, or between sets of subimages within pairs of frames that are then averaged over the subimages for each of the pairs of frames.
摘要翻译: 本公开涉及用于基于帧之间的互相关来确定包括在视频序列中的多个帧中的每一个的图像类型的技术。 互相关包括在视频序列中包括的帧内的图像信息之间的第一级互相关和第一级互相关对之间的二阶交叉相关。 可以分析第一级互相关以检测帧之间的视频过渡效应。 可以相对分析第一和第二阶互相关以确定帧之间的时间相似性。 因此,基于相关的确定技术基于视频过渡效应和时间相似性确定帧的图像类型。 基于相关的确定技术可以计算帧对之间的图像之间的第一阶交叉相关性,或者在帧对之间的子图像集合之间的第一阶交叉相关性,然后对于每对帧对于子图像进行平均。
-
-
-
-
-
-
-
-
-