公开(公告)号：US07047435B2

公开(公告)日：2006-05-16

申请号：US10023682

申请日：2001-12-18

申请人： Shih-Ping Liou ,  Ruediger Schollmeier ,  Kilian Heckrodt

发明人： Shih-Ping Liou ,  Ruediger Schollmeier ,  Kilian Heckrodt

IPC分类号： G06F1/04 ,  G06F1/12 ,  H04L7/00

CPC分类号： H04J3/0667 ,  H04N21/242 ,  H04N21/4305

摘要： A method is provided for synchronizing distributed processors. The method comprises determining a desired number of offset values between two processors, wherein each processor comprises a quartz crystal, determining parameters of a regression line, wherein the regression line is a function of the offset values over the desired number of offsets, and adjusting a synchronization interval according to the parameters.

公开(公告)号：US06697564B1

公开(公告)日：2004-02-24

申请号：US09518300

申请日：2000-03-03

申请人： Candemir Toklu ,  Shih-Ping Liou

发明人： Candemir Toklu ,  Shih-Ping Liou

IPC分类号： H04N593

CPC分类号： G06F17/30787 ,  H04N5/147 ,  H04N5/45 ,  H04N21/4394 ,  H04N21/47205 ,  H04N21/84 ,  H04N21/8456

摘要： A system for browsing and editing video, in accordance with the present invention, includes a video source for providing a video document which includes audio information, and an audio classifier coupled to the video source, the audio classifier being adapted to classify audio segments of the audio information into a plurality of classes. An audio spectrogram generator is coupled to the video source for generating spectrograms for the audio information to check that the audio segments have been identified correctly by the audio classifier. A browser is coupled to the audio classifier for searching the classified audio segments for editing and browsing the video document. A method for editing and browsing a video, in accordance with the invention, includes providing a video clip including audio, and segmenting and labeling the audio into music, silence and speech classes in real-time. The step of determining pitch for the speech class to identify and check changes in speakers and browsing the changes in speaker and the audio labels to associate the changes in speaker and the audio labels with frames of the video clip are also included.

摘要翻译： 根据本发明的用于浏览和编辑视频的系统包括用于提供包括音频信息的视频文档的视频源和耦合到视频源的音频分类器，音频分类器适于对 音频信息分成多个类。 音频频谱图发生器耦合到视频源，用于产生音频信息的频谱图，以检查音频分段是否被音频分类器正确识别。 浏览器被耦合到音频分类器，用于搜索分类的音频段以编辑和浏览视频文档。 根据本发明的用于编辑和浏览视频的方法包括提供包括音频的视频剪辑，并且将音频分段并将其标记为音乐，静音和语音类别。 确定语音类别的音调以识别和检查扬声器中的变化并浏览扬声器和音频标签中的变化以将扬声器和音频标签中的变化与视频剪辑的帧相关联的步骤也包括在内。

公开(公告)号：US5835163A

公开(公告)日：1998-11-10

申请号：US576272

申请日：1995-12-21

申请人： Shih-Ping Liou ,  David L. Loghing ,  Farshid Arman

发明人： Shih-Ping Liou ,  David L. Loghing ,  Farshid Arman

IPC分类号： G06F17/30 ,  G11B27/28 ,  G11B27/34 ,  H04N5/14

CPC分类号： G06F17/30799 ,  G06F17/30852 ,  G11B27/28 ,  G11B27/34

摘要： Apparatus for detecting a cut in a video comprises arrangements for acquiring video images from a source, for deriving from the video images a pixel-based difference metric, for deriving from the video images a distribution-based difference metric, and for measuring video content of the video images to provide up-to-date test criteria. Arrangements are included for combining the pixel-based difference metric and the distribution-based difference metric, taking into account the up-to-date test criteria provided so as to derive a scene change candidate signal and for filtering the scene change candidate signal so as to generate a scene change frame list.

摘要翻译： 用于检测视频中的剪辑的装置包括用于从源获取视频图像的装置，用于从视频图像导出基于像素的差分度量，以从视频图像导出基于分布的差异度量，并且用于测量视频内容 视频图像提供最新的测试标准。 包括用于组合基于像素的差异度量和基于分布的差异度量的布置，考虑到提供的最新测试标准，以便导出场景变化候选信号并且用于过滤场景变化候选信号，以便 生成场景更改帧列表。

公开(公告)号：US07096179B2

公开(公告)日：2006-08-22

申请号：US09949868

申请日：2001-09-10

申请人： Weiyu Zhu ,  Shih-Ping Liou ,  Candemir Toklu

发明人： Weiyu Zhu ,  Shih-Ping Liou ,  Candemir Toklu

IPC分类号： G06F17/20 ,  G06F17/27 ,  G06F17/30 ,  G06F7/00

CPC分类号： G06F17/3071 ,  Y10S707/99932

摘要： A method of content grouping based on a corresponding text includes reading from a content list file for a plurality of content groups, and extracting a key phrase set for each content group. The method includes determining, for each content group, a unique score and a non-unique score, determining a unique threshold and a non-unique threshold, and selecting a content group according to a comparison between the scores and the thresholds.

公开(公告)号：US06278446B1

公开(公告)日：2001-08-21

申请号：US09027637

申请日：1998-02-23

申请人： Shih-Ping Liou ,  Madirakshi Das

发明人： Shih-Ping Liou ,  Madirakshi Das

IPC分类号： G06F300

CPC分类号： G06K9/00711 ,  G06F17/30802 ,  G06F17/30805 ,  G06F17/30852

摘要： A system for interactively organizing and browsing video automatically processes video, creating a video table of contents (VTOC), while providing easy-to-use interfaces for verification, correction, and augmentation of the automatically extracted video structure. Shot detection, shot grouping and VTOC generation are automatically determined without making restrictive assumptions about the structure or content of the video. A nonstationary time series model of difference metrics is used for shot boundary detention. Color and edge similarities are used for shot grouping. Observation about the structure of a wide class of videos are used for the generating the table of contents. The use of automatic processing in conjuction with input from the user provides a meaningful video organization.

摘要翻译： 用于交互式组织和浏览视频的系统自动处理视频，创建视频内容表（VTOC），同时提供易于使用的接口，用于自动提取的视频结构的验证，校正和增加。 自动确定拍摄检测，拍摄分组和VTOC生成，而不对视频的结构或内容做出限制性假设。 不平衡时间序列模型的差异度量用于拍摄边界拘留。 颜色和边缘相似性用于拍摄分组。 观察广泛类视频的结构用于生成目录。 使用与用户输入相结合的自动处理提供了有意义的视频组织。

公开(公告)号：US5839440A

公开(公告)日：1998-11-24

申请号：US261643

申请日：1994-06-17

申请人： Shih-Ping Liou ,  Minerva M. Yeung ,  Boon-Lock Yeo

发明人： Shih-Ping Liou ,  Minerva M. Yeung ,  Boon-Lock Yeo

IPC分类号： A61B6/03 ,  G06T1/00 ,  G06T7/00 ,  A61B6/00

CPC分类号： G06T7/0028 ,  A61B6/5264 ,  G06T7/0038 ,  G06T2207/30004 ,  Y10S378/901

摘要： A three-dimensional image registration method also uses an algorithm and applies it to the solution of such problems in 3D CT DSA. The method can deal with incomplete or partial volumetric data in registration and correct patient global motion prior to subtraction even when it is coupled with local unconscious/nonrigid movements. Experimental results demonstrate the effectiveness of this algorithm on several clinical spiral CT data.

摘要翻译： 三维图像配准方法也使用一种算法，并将其应用于3D CT DSA中的这些问题的解决方案。 该方法可以处理注册中的不完整或部分体积数据，并且在减法之前纠正患者全局运动，即使当它与局部无意识/非刚性运动相结合时。 实验结果证明该算法对几种临床螺旋CT数据的有效性。

公开(公告)号：US06724915B1

公开(公告)日：2004-04-20

申请号：US09039007

申请日：1998-03-13

申请人： Candemir Toklu ,  Shih-Ping Liou

发明人： Candemir Toklu ,  Shih-Ping Liou

IPC分类号： G06K900

CPC分类号： G06T7/248 ,  G06T2207/10016

摘要： A method for tracking a video object in a time-ordered sequence of image frames, comprises the steps of (a) identifying the object to be tracked in a first frame and determining its shape in the first frame; (b) selecting another frame, referred to as the last frame and identifying the shape of the object in the last frame; (c) selecting a number of intermediate frames between the first and last frames; (d) automatically identifying the shape of the object in the intermediate frames; and (e) interpolating between all of the frames in the sequence so as to determine the trajectory of the object in all of the frames.

摘要翻译： 一种用于以图像帧的时间有序序列跟踪视频对象的方法，包括以下步骤：（a）在第一帧中识别要跟踪的对象并确定其在第一帧中的形状; （b）选择被称为最后一帧的另一帧，并在最后一帧中识别对象的形状; （c）在第一帧和最后帧之间选择多个中间帧; （d）自动识别中间框架中物体的形状; 以及（e）在序列中的所有帧之间插值，以便确定所有帧中的对象的轨迹。

公开(公告)号：US06580437B1

公开(公告)日：2003-06-17

申请号：US09602721

申请日：2000-06-26

申请人： Shih-Ping Liou ,  Candemir Toklu ,  Madirakshi Das

发明人： Shih-Ping Liou ,  Candemir Toklu ,  Madirakshi Das

IPC分类号： G06F300

CPC分类号： G06F17/30961 ,  G06F17/3028 ,  G06F17/30796

摘要： A system for organizing digital videos to archive and access them at different levels of abstraction uses data available from a closed-caption text along with off-the-shelf natural language processing tools to segment the video into self-contained story sections and speaker blocks. If the subject changes are marked, the system uses these points to divide the video into distinct stories which are represented as nodes attached to the root node in a tree structure and groups speaker segments belonging to a story under the story node as its children.

摘要翻译： 用于组织数字视频以不同抽象级别对其进行归档和访问的系统使用封闭字幕文本中提供的数据以及现成的自然语言处理工具将视频分割成独立的故事部分和扬声器块。 如果主题变化被标记，则系统使用这些点将视频划分成不同的故事，其被表示为以树结构附接到根节点的节点，并且将属于故事节点下的故事的扬声器分段组合为其子节点。

公开(公告)号：US06549643B1

公开(公告)日：2003-04-15

申请号：US09449889

申请日：1999-11-30

申请人： Candemir Toklu ,  Shih-Ping Liou

发明人： Candemir Toklu ,  Shih-Ping Liou

IPC分类号： G06K900

CPC分类号： G11B27/28 ,  G06F17/30802 ,  G06F17/30811 ,  G06F17/30843 ,  G06K9/00751 ,  G06T7/207 ,  G06T7/277 ,  G11B27/102 ,  Y10S358/906

摘要： A system and method for selecting key-frames to generate a content-based visual summary of video and facilitate digital video browsing and indexing, which provides a real-time approach for key-frame selection irrespective of the available computation power. A method for selecting key-frames according to one aspect of the present invention is based on quantifiable measures such as the amount of motion and behavior of curves defined statistically or non-statistically, i.e. by finding the monotonically increasing segments of a curve, instead of thresholding the statistically defined image dissimilarity measures. In one aspect of the present invention, a method for selecting key-frames from video data comprises the steps of: partitioning video data into segments; generating a temporal activity curve for dissimilarity measures based on one of frame differences, color histograms, camera motion, and a combination thereof, for each segment; and sampling the temporal activity curve to select at least one key-frame for each segment.

摘要翻译： 一种用于选择关键帧以产生视频的基于内容的可视摘要并促进数字视频浏览和索引的系统和方法，其提供了关键帧选择的实时方法，而不管可用的计算能力如何。 根据本发明的一个方面的用于选择关键帧的方法是基于可量化的测量，例如统计学上或非统计学上定义的曲线的运动量和行为，即通过找到曲线的单调递增段，而不是 限制统计学上定义的图像不相似性度量。 在本发明的一个方面中，从视频数据中选择关键帧的方法包括以下步骤：将视频数据分割成多个段; 针对每个段，基于帧差异，颜色直方图，相机运动及其组合之一生成用于不同度量的时间活动曲线; 并采样时间活动曲线以为每个段选择至少一个关键帧。

公开(公告)号：US5245422A

公开(公告)日：1993-09-14

申请号：US722661

申请日：1991-06-28

申请人： Robert H. Borcherts ,  Jacek L. Jurzak ,  Shih-Ping Liou ,  Tse-Liang A. Yeh

发明人： Robert H. Borcherts ,  Jacek L. Jurzak ,  Shih-Ping Liou ,  Tse-Liang A. Yeh

IPC分类号： B62D1/28 ,  G05D1/02

CPC分类号： G05D1/0246 ,  B60T2201/08 ,  B60T2201/081 ,  B60T2201/087 ,  G05D2201/0213

摘要： An automatic vehicle steering system is provided for automatically steering a vehicle along a lane in a road. A video sensor is included for generating a plurality of frames of video images of the road. A computer processor analyzes the frames to determine the lane boundaries of the road and the position of the vehicle. The system advantageously utilizes engagement of a cruise control switch and a steering control switch to initiate processing of the image data and automatic steering of the vehicle. In such manner, the reliability and efficiency of the system is increased while at the same time minimizing complexity and cost.

摘要翻译： 提供一种自动车辆转向系统，用于沿着道路中的车道自动地转向车辆。 包括视频传感器，用于产生道路的多个视频图像帧。 计算机处理器分析帧以确定道路的车道边界和车辆的位置。 该系统有利地利用巡航控制开关和转向控制开关的接合来启动图像数据的处理和车辆的自动转向。 以这种方式，系统的可靠性和效率得到提高，同时使复杂性和成本最小化。