公开(公告)号：US06654067B1

公开(公告)日：2003-11-25

申请号：US09477083

申请日：1999-12-30

申请人： Thomas Mc Gee ,  Nevenka Dimitrova

发明人： Thomas Mc Gee ,  Nevenka Dimitrova

IPC分类号： H04N514

CPC分类号： G06F17/30802 ,  G06F17/30814 ,  G06F17/30843 ,  H04N5/147

摘要： To prevent undesired images from appearing in moving video images, short-duration portions of video information contained within longer video works are detected and reported by, for example, displaying the short-duration portions on a monitor. These short-duration portions are detected, for example, by locating scene cuts, region cuts, or object cuts that occur in rapid succession.

摘要翻译： 为了防止在移动视频图像中出现不期望的图像，通过例如在监视器上显示短时间部分来检测和报告更长视频作品中包含的视频信息的短时间部分。 例如，通过定位快速连续发生的场景切割，区域切割或物体切割来检测这些短时间部分。

公开(公告)号：US6100941A

公开(公告)日：2000-08-08

申请号：US123444

申请日：1998-07-28

申请人： Nevenka Dimitrova ,  Thomas Mc Gee ,  Jan Hermanus Elenbaas ,  Eugene Leyvi ,  Carolyn Ramsey ,  David Berkowitz

发明人： Nevenka Dimitrova ,  Thomas Mc Gee ,  Jan Hermanus Elenbaas ,  Eugene Leyvi ,  Carolyn Ramsey ,  David Berkowitz

IPC分类号： H04N5/91 ,  G11B27/10 ,  G11B27/28 ,  H04H1/00 ,  H04H60/59 ,  H04N5/14 ,  H04N5/782 ,  H04N17/00

CPC分类号： H04N5/782 ,  G06F17/30814 ,  G06F17/30825 ,  G11B27/107 ,  G11B27/28 ,  H04H20/10 ,  H04H60/375 ,  H04H60/59 ,  H04N21/4325 ,  H04N21/4334 ,  H04N21/44008 ,  H04N21/812 ,  H04N5/147 ,  G11B2220/90 ,  Y10S358/908

摘要： A commercial detection apparatus includes a frame grab thread which acquires frames from an input data stream to be analyzed by a cut detector thread and a filter thread. A commercial detection thread determines whether a commercial has occurred from data created by the cut detector thread and the filter thread stored in a memory. A factor used by the commercial detection thread is whether a black frame has occurred. The input data stream is divided into a plurality of regions and then a maximum and minimum value for a section of these regions is determined and compared to one another. If the maximum and minimum values are close enough, and the maximum value is below a threshold, then the frame is deemed to be black. The commercial detection thread also looks at the average cut frame distance, cut rate, changes in the average cut frame distance, the absence of a logo, a commercial signature detection, brand name detection, a series of black frames preceding a high cut rate, similar frames located within a specified period of time before a frame being analyzed and character detection. During playback, the detected commercials are either skipped or substituted with alternate content.

摘要翻译： 商业检测装置包括从通过切断检测器线程和滤波器线程分析的输入数据流中获取帧的帧抓取线程。 商业检测线程确定是否从由切割检测器线程创建的数据和存储在存储器中的过滤器线程发生商业广告。 商业检测线程使用的因素是是否发生黑框。 输入数据流被分成多个区域，然后确定这些区域的一部分的最大值和最小值并将其彼此比较。 如果最大值和最小值足够近，并且最大值低于阈值，则该帧被认为是黑色的。 商业检测线程还查看平均切割帧距离，剪切速率，平均切割帧距离的变化，没有标志，商业签名检测，品牌名称检测，高切割率之前的一系列黑色帧， 位于分析帧之前的指定时间段内的类似帧和字符检测。 在播放期间，检测到的广告被跳过或替换为备用内容。