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21. 发明授权

US5574663A Method and apparatus for regenerating a dense motion vector field 失效
标题翻译：用于再生密集运动矢量场的方法和装置
公开(公告)号：US5574663A
公开(公告)日：1996-11-12
申请号：US505981
申请日：1995-07-24
申请人： Taner Ozcelik , James C. Brailean , Aggelos K. Katsaggelos
发明人： Taner Ozcelik , James C. Brailean , Aggelos K. Katsaggelos
IPC分类号： H04N7/26 , G06F17/00
CPC分类号： H04N19/543
摘要： The present invention provides a method (300) and apparatus (100) for regenerating a dense motion vector field, which describes the motion between two temporally adjacent frames of a video sequence, utilizing a previous dense motion vector field. In this method, a spatial DVF and a temporal DVF are determined (302 and 304) and summed to provide a DVF prediction (306). This method and apparatus enables a dense motion vector field to be used in the encoding and decoding process of a video sequence. This is very important since a dense motion vector field provides a much higher quality prediction of the current frame as compared to the standard block matching motion estimation techniques. The problem to date with utilizing a dense motion vector field is that the information contained in a dense motion field is too large to transmit. The present invention eliminates the need to transmit any motion information.
摘要翻译：本发明提供一种用于再现密集运动矢量场的方法（300）和装置（100），其利用先前的密集运动矢量场来描述视频序列的两个时间上相邻的帧之间的运动。在该方法中，确定空间DVF和时间DVF（302和304）并相加以提供DVF预测（306）。该方法和装置使得能够在视频序列的编码和解码处理中使用密集运动矢量场。这是非常重要的，因为与标准块匹配运动估计技术相比，密集运动矢量场提供了当前帧的更高质量的预测。迄今使用密集运动矢量场的问题是包含在密集运动场中的信息太大而不能传输。本发明消除了传送任何运动信息的需要。

22. 发明授权

US06654539B1 Trick playback of digital video data 失效
标题翻译：技术播放数字视频数据
公开(公告)号：US06654539B1
公开(公告)日：2003-11-25
申请号：US09281152
申请日：1999-03-30
申请人： Cem I. Duruöz , Taner Ozcelik , Pattabiraman Subramanian , Yoshinori Shimizu , Takayuki Ishida
发明人： Cem I. Duruöz , Taner Ozcelik , Pattabiraman Subramanian , Yoshinori Shimizu , Takayuki Ishida
IPC分类号： H04N591
CPC分类号： H04N9/8042 , H04N5/783 , H04N5/85
摘要： A single-chip application specific integrated circuit provides autonomous management of playback of digital video and audio. The chip includes a digital video decoder and output system, and a central processing unit controlling said digital video decoder and output system. The central processing unit receives commands to establish a current playback state for management of playback of digital video and audio by said digital video decoder and output system, and responds to a video field synchronization signal and a current playback state, without external instruction, to determine whether to display digital video, whether to decode digital video for display, whether to repeat display of previously decoded digital video, and whether to skip over digital video prior to decoding digital video for output. By delivering commands to the central processing unit, the application specific integrated circuit can be caused to transition between playback states to provide desired playback of said digital video and audio.
摘要翻译：单芯片专用集成电路提供数字视频和音频播放的自主管理。芯片包括数字视频解码器和输出系统，以及控制所述数字视频解码器和输出系统的中央处理单元。中央处理单元接收命令以建立用于管理数字视频解码器和输出系统的数字视频和音频的重放的当前重放状态，并且在没有外部指令的情况下响应视频场同步信号和当前重放状态来确定是否显示数字视频，是否解码数字视频进行显示，是否重复显示先前解码的数字视频，以及是否在数字视频解码之前跳过数字视频进行输出。通过向中央处理单元发送命令，可以使专用集成电路在播放状态之间转换以提供所述数字视频和音频的所需回放。

23. 发明授权

US06363207B1 Method and apparatus for a virtual system time clock for digital audio/video processor 失效
标题翻译：用于数字音频/视频处理器的虚拟系统时钟的方法和装置
公开(公告)号：US06363207B1
公开(公告)日：2002-03-26
申请号：US09177261
申请日：1998-10-22
申请人： Cem Duruoz , Taner Ozcelik , Gong-san Yu
发明人： Cem Duruoz , Taner Ozcelik , Gong-san Yu
IPC分类号： H04N591
CPC分类号： H04N21/47217 , H04N5/04 , H04N5/4401 , H04N5/45 , H04N5/602 , H04N5/783 , H04N9/8042 , H04N9/8063 , H04N9/8227 , H04N21/4307 , H04N21/4341 , H04N21/4392 , H04N21/44004
摘要： A digital video processor and operating method for a receiving raw audio and video data representing images and sound to be played. The processor includes a demultiplexer for receiving the raw audio and video data and providing demultiplexed audio and video data to a memory. A first system time clock provides first time values in response to being continuously clocked by the demultiplexer. A CPU decodes and plays back the audio and video data as a function of the audio and video PTS values. The processor further includes a second system time clock providing second time values in response to being periodically incremented by the CPU. The CPU periodically sets the second system time clock to a second time value equal to a current first time value of the first system time clock in response to a standard play mode, and the CPU periodically sets the first system time clock to a first time value equal to a current second time value of the second system time clock in response to a trick play mode.
摘要翻译：一种用于接收表示要播放的图像和声音的原始音频和视频数据的数字视频处理器和操作方法。处理器包括用于接收原始音频和视频数据的解复用器，并将解复用的音频和视频数据提供给存储器。响应于由解复用器连续计时，第一系统时钟提供第一时间值。 CPU根据音频和视频PTS值解码和播放音频和视频数据。处理器还包括第二系统时钟响应于由CPU周期性增加的第二时间值。响应于标准播放模式，CPU周期性地将第二系统时间时钟设置为等于第一系统时钟的当前第一时间值的第二时间值，并且CPU周期性地将第一系统时间时钟设置为第一时间值等于第二系统时钟响应于特技播放模式的当前第二时间值。

24. 发明授权

US6128340A Decoder system with 2.53 frame display buffer 失效
标题翻译：解码器系统具有2.53帧显示缓冲区
公开(公告)号：US6128340A
公开(公告)日：2000-10-03
申请号：US818824
申请日：1997-03-14
申请人： Taner Ozcelik , Shirish Gadre
发明人： Taner Ozcelik , Shirish Gadre
IPC分类号： H04N7/26 , H04N7/32 , H04N7/50
CPC分类号： H04N19/90 , H04N19/127 , H04N19/152 , H04N19/174 , H04N19/423 , H04N19/427 , H04N19/61 , H04N19/50
摘要： A decoder system is provided for decoding an input video signal. A buffer memory hold slices of reconstructed B-pictures for display. The decoder is controlled in accordance with an amount of available memory in the buffer (the amount of available memory in the buffer depends both on how much data has been decoded and also upon how much data has been displayed). In addition, a buffer memory input controller controls into which locations of the buffer memory the slices of the reconstructed B-pictures are stored. As a result, only 2.53 frames of buffer memory are required.
摘要翻译：提供了一种用于解码输入视频信号的解码器系统。缓冲存储器保存用于显示的重构的B图像的切片。解码器根据缓冲器中的可用存储器的量来控制（缓冲器中的可用存储器量取决于已经解码了多少数据，并且还取决于显示了多少数据）。此外，缓冲存储器输入控制器控制缓冲存储器的哪些位置存储重构的B图像的切片。因此，只需要2.53帧的缓冲存储器。

25. 发明授权

US5717463A Method and system for estimating motion within a video sequence 失效
标题翻译：用于估计视频序列内的运动的方法和系统
公开(公告)号：US5717463A
公开(公告)日：1998-02-10
申请号：US505992
申请日：1995-07-24
申请人： James C. Brailean , Taner Ozcelik , Aggelos K. Katsaggelos
发明人： James C. Brailean , Taner Ozcelik , Aggelos K. Katsaggelos
IPC分类号： G06T7/20 , H04N7/26 , H04N7/36
CPC分类号： H04N19/543 , G06T7/20
摘要： A method and system for estimating the motion within a video sequence provides very accurate estimates of both the displacement vector field, as well as, the boundaries of moving objects. The system comprises a preprocessor (102), a spatially adaptive pixel motion estimator (104), a motion boundary estimator (106), and a motion analyzer (108). The preprocessor (102) provides a first estimate of the displacement vector field, and the spatially adaptive pixel motion estimator (104) provides a first estimate of object boundaries. The motion boundary estimator (106) and the motion analyzer (108) improve the accuracy of the first estimates.
摘要翻译：用于估计视频序列中的运动的方法和系统提供了移动物体的位移矢量场以及边界的非常准确的估计。该系统包括预处理器（102），空间自适应像素运动估计器（104），运动边界估计器（106）和运动分析器（108）。预处理器（102）提供位移矢量场的第一估计，并且空间自适应像素运动估计器（104）提供物体边界的第一估计。运动边界估计器（106）和运动分析器（108）提高了第一估计的准确性。

26. 发明授权

US5612745A Method and apparatus for detecting occlusion 失效
标题翻译：检测闭塞的方法和装置
公开(公告)号：US5612745A
公开(公告)日：1997-03-18
申请号：US505991
申请日：1995-07-24
申请人： Taner Ozcelik , James C. Brailean , Aggelos K. Katsaggelos
发明人： Taner Ozcelik , James C. Brailean , Aggelos K. Katsaggelos
IPC分类号： G06T7/20 , H04N5/14 , H04N7/26 , H04N7/36
CPC分类号： G06T7/20 , H04N19/503 , H04N19/553 , H04N5/145
摘要： The present invention provides a method and apparatus for detecting occluded areas in a video frame. A previous displacement vector field, DVF, is motion compensated (402) and used to provide an occlusion test parameter (404) which is compared to an optimal threshold (408) to detect occluded areas. The optimal threshold is calculated based on the previous DVF and a predetermined threshold (406).
摘要翻译：本发明提供了一种用于检测视频帧中的遮挡区域的方法和装置。先前的位移矢量场DVF是运动补偿（402）并且用于提供与最佳阈值（408）进行比较以检测遮挡区域的遮挡测试参数（404）。基于先前的DVF和预定阈值计算最佳阈值（406）。

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