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1. 发明授权

US07242715B2 Systems and methods for encoding redundant motion vectors in compressed video bitstreams 有权
标题翻译：用于在压缩视频比特流中编码冗余运动矢量的系统和方法
公开(公告)号：US07242715B2
公开(公告)日：2007-07-10
申请号：US11086464
申请日：2005-03-23
申请人： Chang-Su Kim , Ioannis Katsavounidis
发明人： Chang-Su Kim , Ioannis Katsavounidis
IPC分类号： H04B1/66
CPC分类号： H03M7/30 , H03M7/40 , H03M13/00 , H04N5/147 , H04N19/29 , H04N19/573 , H04N19/65 , H04N21/234318 , H04N21/236 , H04N21/434 , H04N21/44012 , H04W84/14
摘要： The invention is related to methods and apparatus that encode redundant motion vectors for predictive-coded visual object planes (P-VOPs) to increase the robustness of transmitted video signals. One embodiment provides the redundant motion vectors in a user data video packet of an MPEG-4 compliant bitstream, which thereby allows the enhanced bitstream to remain compliant with MPEG-4 syntax and backwards compatible with MPEG-4 decoders. The enhanced bitstreams allow a video decoder to display a video with a better picture and relatively less error and error propagation when portions of the bitstream are disturbed or corrupted by interference, delays, and the like.
摘要翻译：本发明涉及编码用于预测编码的视觉对象平面（P-VOP）的冗余运动矢量以增加发送的视频信号的鲁棒性的方法和装置。一个实施例在MPEG-4兼容比特流的用户数据视频分组中提供冗余运动矢量，从而允许增强比特流保持符合MPEG-4语法并向后兼容MPEG-4解码器。增强型比特流允许视频解码器在比特流的部分被干扰，延迟等干扰或破坏时，以更好的图像显示视频，并且相对较少的错误和错误传播。

2. 发明授权

US07042948B2 Systems and methods for management of data in a ring buffer for error resilient decoding of a video bitstream 有权
公开(公告)号：US07042948B2
公开(公告)日：2006-05-09
申请号：US10092384
申请日：2002-03-05
申请人： Jin-Gyeong Kim , Ioannis Katsavounidis
发明人： Jin-Gyeong Kim , Ioannis Katsavounidis
IPC分类号： H04B1/66
CPC分类号： H03M7/30 , H03M7/40 , H03M13/00 , H04N5/147 , H04N19/29 , H04N19/573 , H04N19/65 , H04N21/234318 , H04N21/236 , H04N21/434 , H04N21/44012 , H04W84/14
摘要： The invention is related to methods and apparatus that manage data received in a video bitstream. Video data received from the video bitstream is placed in a ring buffer, which is also known as a circular buffer. Data logging information is also stored in the ring buffer. In one embodiment, the data logging information is stored synchronously or in alignment with the corresponding video data. The data logging information can include a status of whether the corresponding video data with or without error. The ring buffer provides fast and efficient access to video bitstream data that may be accessed multiple times in multiple directions by modules that extract data from the video bitstream in an error resilient manner.

3. 发明申请

US20050089091A1 Systems and methods for reducing frame rates in a video data stream 审中-公开
公开(公告)号：US20050089091A1
公开(公告)日：2005-04-28
申请号：US10989390
申请日：2004-11-17
申请人： Chang-Su Kim , Ioannis Katsavounidis , Lifeng Zhao
发明人： Chang-Su Kim , Ioannis Katsavounidis , Lifeng Zhao
IPC分类号： G06T9/00 , H03M7/30 , H03M7/36 , H03M7/40 , H03M13/00 , H04L1/00 , H04N5/14 , H04N19/89 , H04N19/895 , H04N21/2343 , H04N21/236 , H04N21/434 , H04N21/44 , H04W84/14 , H04N7/12
CPC分类号： H03M7/30 , H03M7/40 , H03M13/00 , H04N5/147 , H04N19/29 , H04N19/573 , H04N19/65 , H04N21/234318 , H04N21/236 , H04N21/434 , H04N21/44012 , H04W84/14
摘要： The present invention is related to video encoding. In an embodiment, a sequence of frames is received. For each frame in at least a portion of the sequence of frames, a corresponding mean of absolute differences value weighted by a temporal parameter between frames bracketing said each frame is calculated. At least partly based on the corresponding mean of absolute differences value weighted by a temporal parameter, a first frame in the sequence of frames is skipped.

4. 发明申请

US20050058199A1 Systems and methods for performing bit rate allocation for a video data stream 有权
标题翻译：为视频数据流执行比特率分配的系统和方法
公开(公告)号：US20050058199A1
公开(公告)日：2005-03-17
申请号：US10956061
申请日：2004-10-04
申请人： Lifeng Zhao , Ioannis Katsavounidis
发明人： Lifeng Zhao , Ioannis Katsavounidis
IPC分类号： G06T9/00 , H03M7/30 , H03M7/36 , H03M7/40 , H03M13/00 , H04L1/00 , H04N5/14 , H04N19/89 , H04N19/895 , H04N21/2343 , H04N21/236 , H04N21/434 , H04N21/44 , H04W84/14 , H04N7/12
CPC分类号： H03M7/30 , H03M7/40 , H03M13/00 , H04N5/147 , H04N19/29 , H04N19/573 , H04N19/65 , H04N21/234318 , H04N21/236 , H04N21/434 , H04N21/44012 , H04W84/14
摘要： The present invention is related to video encoding. In an embodiment, a bit budget is calculated for a first scene. In addition, bit budgets for corresponding frames, including at least a first frame, within the first scene are determined. Optionally, bit budgets corresponding to macroblocks within the first frame are also determined.
摘要翻译：本发明涉及视频编码。在一个实施例中，针对第一场景计算比特预算。此外，确定在第一场景内的相应帧（包括至少第一帧）的比特预算。可选地，还确定了对应于第一帧内的宏块的比特预算。

5. 发明授权

US08135067B2 Systems and methods for decoding redundant motion vectors in compressed video bitstreams 有权
标题翻译：用于在压缩视频比特流中解码冗余运动矢量的系统和方法
公开(公告)号：US08135067B2
公开(公告)日：2012-03-13
申请号：US11657466
申请日：2007-01-25
申请人： Chang-Su Kim , Ioannis Katsavounidis
发明人： Chang-Su Kim , Ioannis Katsavounidis
IPC分类号： H04B1/66
CPC分类号： H03M7/30 , H03M7/40 , H03M13/00 , H04N5/147 , H04N19/29 , H04N19/573 , H04N19/65 , H04N21/234318 , H04N21/236 , H04N21/434 , H04N21/44012 , H04W84/14
摘要： The invention is related to methods and apparatus that decode robustly encoded video bitstreams. One embodiment of a decoder can advantageously reconstruct a predictive-coded video object plane (P-VOP) from a standard motion vector and the previous frame; from a redundant motion vector and a frame prior to the previous frame; or from both. Advantageously, this permits the decoder to display a frame based on a reconstructed VOP in the presence of unfavorable environmental conditions, such as interference, delays, and the like, which could otherwise corrupt a previous frame that is used as a reference by a standard decoder, such as a standard MPEG-4 decoder. One embodiment is advantageously backwards compatible with standard MPEG-4 compliant bitstreams and retrieves redundant motion vector information from user data video packets. One embodiment includes at least one extra frame buffer or memory, which stores a reference frame corresponding to a redundant motion vector.
摘要翻译：本发明涉及对鲁棒编码的视频比特流进行解码的方法和装置。解码器的一个实施例可以有利地从标准运动矢量和先前帧重建预测编码视频对象平面（P-VOP）; 从冗余运动矢量和前一帧之前的帧; 或从两者。有利地，这允许解码器在存在不利的环境条件（例如干扰，延迟等）的情况下基于重构的VOP显示帧，否则可能会破坏用作标准解码器的参考的先前帧，如标准MPEG-4解码器。一个实施例有利地与标准MPEG-4兼容比特流向后兼容，并从用户数据视频分组中检索冗余运动矢量信息。一个实施例包括至少一个额外的帧缓冲器或存储器，其存储对应于冗余运动矢量的参考帧。

6. 发明授权

US08121196B2 Method and apparatus for multi-threaded video decoding 有权
标题翻译：用于多线程视频解码的方法和装置
公开(公告)号：US08121196B2
公开(公告)日：2012-02-21
申请号：US11556161
申请日：2006-11-02
申请人： Ioannis Katsavounidis , Yu-Nien Chien , Chun-Huan Chuang , Chung-Tao Chu , Te-Chien Chen
发明人： Ioannis Katsavounidis , Yu-Nien Chien , Chun-Huan Chuang , Chung-Tao Chu , Te-Chien Chen
IPC分类号： H04B1/66
CPC分类号： H04N19/436 , H04N19/44 , H04N19/577
摘要： A method and an apparatus for performing multi-threaded video decoding are disclosed. The method takes use of a multi-threaded scheme to process an encoded picture stream on a picture by picture basis. In the method, multiple threads are used for performing video decoding at the same time, such as one thread for the operation of parsing input bits into syntax elements of one picture implemented by the first thread, another thread for the operation of decoding the parsed syntax elements of another picture into pixel values implemented by the second thread, and the other threads for the operations of the non-reference picture, such as bidirectional predictive picture, including parsing input bits into syntax elements and the subsequent operation of decoding the parsed syntax elements into pixel values. Therefore, the decoding speed is substantially increased, and the decoding efficiency is enhanced.
摘要翻译：公开了一种用于执行多线程视频解码的方法和装置。该方法利用多线程方案来逐个处理图像流。在该方法中，多个线程同时用于执行视频解码，例如用于将输入比特分解成由第一线程实现的一个图像的语法元素的操作的一个线程，用于解码解析语法的操作的另一线程将另一图像的元素转换成由第二线程实现的像素值，以及用于非参考图像的操作的其他线程，诸如双向预测图像，包括将输入比特解析成语法元素，以及随后的解析解析语法元素的操作转换为像素值。因此，解码速度显着增加，解码效率提高。

7. 发明申请

US20100180213A1 DOCUMENT CREATION SYSTEM AND METHODS 审中-公开
标题翻译：文献创作系统及方法
公开(公告)号：US20100180213A1
公开(公告)日：2010-07-15
申请号：US12621368
申请日：2009-11-18
申请人： Evangelos Karageorgos , Stavros Kounis , Pavlos Moustakidis , John D. Pavlidis , Ioannis Katsavounidis
发明人： Evangelos Karageorgos , Stavros Kounis , Pavlos Moustakidis , John D. Pavlidis , Ioannis Katsavounidis
IPC分类号： G06F3/048 , G06F17/30
CPC分类号： G06F17/243 , G06F16/93
摘要： Methods, systems, and related computer program products for facilitating the generation of a document, such as a scientific poster, to be viewed by a community of human viewers in association with a hosted event, such as a scientific conference, are described, the generated document conforming to document configuration guidelines previously established for that hosted event. Provided in one preferred embodiment is an interactive document creation tool that constrains user input of content data according to constraints specified in the document configuration guidelines and then automatically generates the document from the content data in compliance with those document configuration guidelines, sparing substantial user time and effort particularly when a pre-existing antecedent electronic document is used as a basis for the content data. Also provided are methods for coordinating document display at hosted events, managing populations of distinct document configuration guidelines, and adapting a created document for multiple different hosted events.
摘要翻译：描述了用于促进生成诸如科学海报的文档的方法，系统和相关的计算机程序产品，以供诸如科学会议等托管的事件与人类观察者的社区相关联。生成的符合先前为该托管事件建立的文档配置指南的文档。在一个优选实施例中提供了一种交互式文档创建工具，其根据文档配置准则中指定的约束约束内容数据的用户输入，然后根据这些文档配置指南自动从内容数据生成文档，节省大量用户时间和特别是当使用预先存在的先行电子文档作为内容数据的基础时。还提供了用于协调托管事件的文档显示的方法，管理不同文档配置准则的人群，以及为多个不同的托管事件调整创建的文档。

8. 发明申请

US20080123738A1 Systems methods for adjusting targeted bit allocation based on an occupancy level of a VBV buffer model 审中-公开
标题翻译：基于VBV缓冲器模型的占用水平调整目标位分配的系统方法
公开(公告)号：US20080123738A1
公开(公告)日：2008-05-29
申请号：US12010667
申请日：2008-01-29
申请人： Ioannis Katsavounidis , Kuo-Wei Hsu , Lifeng Zhao
发明人： Ioannis Katsavounidis , Kuo-Wei Hsu , Lifeng Zhao
IPC分类号： H04N7/12
CPC分类号： H04N19/152 , H04N19/115 , H04N19/124 , H04N19/137 , H04N19/14 , H04N19/142 , H04N19/149 , H04N19/159 , H04N19/176
摘要： The invention is related to methods and apparatus that advantageously improve bit rate control in a video encoder, such as an MPEG video encoder. One embodiment of the invention advantageously varies the targeted bit allocation for a picture to be encoded based on an occupancy level of a buffer model, such as a video buffer verifier (VBV) buffer model.
摘要翻译：本发明涉及有利地提高诸如MPEG视频编码器的视频编码器中的比特率控制的方法和装置。本发明的一个实施例有利地基于诸如视频缓冲器验证器（VBV）缓冲器模型的缓冲器模型的占用水平改变要编码的图像的目标比特分配。

9. 发明授权

US07215712B2 Systems and methods for decoding of partially corrupted reversible variable length code (RVLC) intra-coded macroblocks and partial block decoding of corrupted macroblocks in a video decoder 有权
标题翻译：用于解码部分损坏的可逆可变长度码（RVLC）帧内编码宏块的系统和方法以及视频解码器中损坏的宏块的部分块解码
公开(公告)号：US07215712B2
公开(公告)日：2007-05-08
申请号：US11001118
申请日：2004-12-02
申请人： Ioannis Katsavounidis , Chang-Su Kim , JongWon Kim
发明人： Ioannis Katsavounidis , Chang-Su Kim , JongWon Kim
IPC分类号： H04B1/66
CPC分类号： H03M7/30 , H03M7/40 , H03M13/00 , H04N5/147 , H04N19/29 , H04N19/573 , H04N19/65 , H04N21/234318 , H04N21/236 , H04N21/434 , H04N21/44012 , H04W84/14
摘要： The invention is related to methods and apparatus that recover usable video data from partially corrupted data. Embodiments inspect corrupted data packets and identify the location or locations of an error, whether the corrupted data packet contains data expected to be error-free, and whether the error-free data should be used. Decoding of a packet in both the forward direction and the backward direction can be used to locate a position of an error. Intra-coded macroblocks can also be recovered. A decoder can elect to use or to drop an intra-coded macroblock recovered from a corrupted data packet according to further criteria that is applied to the recovered intra-coded macroblock. One embodiment inspects video bitstream data that has been encoded with an optional data partitioning feature enabled, and retrieves specified data in areas of a corrupted packet that are expected to be free from error.
摘要翻译：本发明涉及从部分损坏的数据中恢复可用视频数据的方法和装置。实施例检查损坏的数据分组并识别错误的位置或位置，不管损坏的数据分组是否包含预期无错误的数据，以及是否应该使用无错误的数据。可以使用向前方向和向后方向上的分组的解码来定位错误的位置。帧内编码的宏块也可以被恢复。解码器可以根据应用于恢复的帧内编码宏块的进一步标准，选择使用或丢弃从损坏的数据分组恢复的帧内编码宏块。一个实施例检查已经使能了可选数据分区功能而被编码的视频比特流数据，并在预期没有错误的损坏的分组的区域中检索指定的数据。

10. 发明授权

US07164716B2 Systems and methods for encoding redundant motion vectors in compressed video bitstreams 有权
公开(公告)号：US07164716B2
公开(公告)日：2007-01-16
申请号：US10989386
申请日：2004-11-17
申请人： Chang-Su Kim , Ioannis Katsavounidis
发明人： Chang-Su Kim , Ioannis Katsavounidis
IPC分类号： H04B1/66
CPC分类号： H03M7/30 , H03M7/40 , H03M13/00 , H04N5/147 , H04N19/29 , H04N19/573 , H04N19/65 , H04N21/234318 , H04N21/236 , H04N21/434 , H04N21/44012 , H04W84/14
摘要： The invention is related to methods and apparatus that encode redundant motion vectors for predictive-coded visual object planes (P-VOPs) to increase the robustness of transmitted video signals. One embodiment provides the redundant motion vectors in a user data video packet of an MPEG-4 compliant bitstream, which thereby allows the enhanced bitstream to remain compliant with MPEG-4 syntax and backwards compatible with MPEG-4 decoders. The enhanced bitstreams allow a video decoder to display a video with a better picture and relatively less error and error propagation when portions of the bitstream are disturbed or corrupted by interference, delays, and the like.

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