公开(公告)号：US20030126598A1

公开(公告)日：2003-07-03

申请号：US10029916

申请日：2001-12-31

Applicant: Koninklijke Philips Electronics N.V.

Inventor： Lalitha Agnihotri ,  J. David Schaffer ,  Nevenka Dimitrova ,  Thomas McGee ,  Sylvie Jeannin

IPC: H04N007/16 ,  H04H009/00 ,  H04N007/025 ,  H04N007/10 ,  H04N007/01 ,  H04N011/20

CPC classification number: G06K9/00718 ,  G06F17/30787 ,  G06F17/30802 ,  G06K9/62 ,  G11B27/28 ,  G11B2220/20 ,  H04N5/76 ,  H04N21/4147 ,  H04N21/44008 ,  H04N21/812

Abstract: A method for optimizing the performance of an algorithm for detecting predetermined content in a media information stream, and a program and apparatus that operate in accordance with the method. The algorithm is a function of a set of parameters. The method comprises the steps of performing the algorithm at least once to detect the predetermined content in the media information stream, while employing a respective set of parameters in the algorithm for each performance thereof, and automatically evolving at least one respective set of parameters employed in the algorithm to maximize the degree of accuracy at which the algorithm detects the predetermined content in the media information stream.

Abstract translation: 一种用于优化用于检测媒体信息流中的预定内容的算法的性能的方法，以及根据该方法操作的程序和装置。 该算法是一组参数的函数。 该方法包括以下步骤：至少一次执行该算法以检测媒体信息流中的预定内容，同时在算法中对其每次演奏采用相应的一组参数，并且自动演化至少一个相应的参数集 最大化算法在媒体信息流中检测预定内容的准确度的算法。

公开(公告)号：US20040086258A1

公开(公告)日：2004-05-06

申请号：US10287509

申请日：2002-11-04

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Inventor： Thomas McGee ,  Mauro Barbieri

IPC: H04N005/76 ,  H04N005/781

CPC classification number: G11B27/034 ,  G11B27/28 ,  G11B2220/216 ,  G11B2220/2562

Abstract: A method for selecting a chapter boundary for a digital video recording is provided that includes examining cut-rates for the recording. A determination is made regarding whether a default chapter length has passed. A determination is made regarding whether the cut-rate for the recording at the default chapter length is low. The chapter boundary is selected at the default chapter length when the cut-rate for the recording at the default chapter length is low.

Abstract translation: 提供了一种用于选择数字视频记录的章节边界的方法，其包括检查用于记录的裁剪率。 确定是否通过默认章节长度。 确定在默认章节长度的记录的切割速率是否低。 当默认章节长度的录制剪切速率较低时，以默认章节长度选择章节边界。

公开(公告)号：US20030117530A1

公开(公告)日：2003-06-26

申请号：US10028378

申请日：2001-12-21

Applicant: Koninklijke Philips Electronics N.V.

Inventor： Thomas McGee ,  Lalitha Agnihotri ,  Nevenka Dimitrova ,  Radu Serban Jasinschi

IPC: H04N009/64

CPC classification number: H04N5/44 ,  H04N21/44008 ,  H04N21/812 ,  H04N21/84 ,  H04N21/8456

Abstract: Techniques are disclosed for detecting commercials or other particular types of video content in a video signal. In an illustrative embodiment, color histograms are extracted from frames of the video signal. For each of at least a subset of the extracted color histograms, the extracted color histogram is compared to a family histogram. If the extracted color histogram falls within a specified range of the family histogram, the family histogram is updated to include the extracted color histogram as a new member. If the extracted color histogram does not fall within the specified range of the family histogram, the family histogram is considered complete and the extracted color histogram is utilized to generate a new family histogram for use in processing subsequent extracted color histograms. The resulting family histograms are utilized to detect commercials or other particular type of video content in the video signal.

Abstract translation: 公开了用于检测视频信号中的商业广告或其他特定类型的视频内容的技术。 在说明性实施例中，从视频信号的帧中提取颜色直方图。 对于提取的颜色直方图的至少一个子集中的每一个，将所提取的颜色直方图与族直方图进行比较。 如果提取的颜色直方图落入家族直方图的指定范围内，则更新系列直方图以将所提取的颜色直方图包括为新成员。 如果提取的颜色直方图不在家庭直方图的指定范围内，则家族直方图被认为是完整的，并且所提取的颜色直方图被用于生成用于处理随后提取的颜色直方图的新家族直方图。 所得到的系列直方图用于检测视频信号中的广告或其他特定类型的视频内容。

公开(公告)号：US20030090505A1

公开(公告)日：2003-05-15

申请号：US10298968

申请日：2002-11-18

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Inventor： Thomas McGee ,  Nevenka Dimitrova ,  Jan Herman Elenbaas

IPC: G06F003/00 ,  H04N005/445 ,  G06F013/00 ,  H04N005/222 ,  G09G005/00

CPC classification number: G06F17/30802 ,  G06F17/30814 ,  G06F17/30858 ,  G06K9/00711 ,  G11B27/105 ,  G11B27/107 ,  G11B27/11 ,  G11B27/28 ,  G11B27/326 ,  G11B27/328 ,  G11B27/34 ,  G11B2220/2562 ,  G11B2220/65 ,  G11B2220/90 ,  H04N5/147 ,  H04N19/142 ,  H04N19/179 ,  H04N19/503 ,  H04N19/87 ,  H04N21/458 ,  H04N21/812

Abstract: A video indexing system analyzes contents of source video and develops a visual table of contents using selected images. A system for detecting significant scenes detects video cuts from one scene to another, and static scenes based on DCT coefficients and macroblocks. A keyframe filtering process filters out less desired frames including, for example, unicolor frames, or those frames having a same object as a primary focus or one primary focuses. Commercials may also be detected and frames of commercials eliminated. The significant scenes and static scenes are detected based on a threshold which is set based on the category of the video.

公开(公告)号：US20020186768A1

公开(公告)日：2002-12-12

申请号：US09854511

申请日：2001-05-14

Applicant: Koninklijke Philips Electronics N.V.

Inventor： Nevenka Dimitrova ,  Thomas McGee ,  Gerhardus Mekenkamp ,  Edwin Salomons

IPC: H04N007/12

CPC classification number: H04N21/44008 ,  H04N19/137 ,  H04N19/142 ,  H04N19/61 ,  H04N21/235 ,  H04N21/2353 ,  H04N21/435 ,  H04N21/812

Abstract: The process of compressing video requires the calculation of a variety data that are used in the process of compression. The invention exploits some or all of these data for purposes of content detection. For example, these data may be leveraged for purposes of commercial detection. The luminance, motion vector field, residual values, quantizer, bit rate, etc. may all be used either directly or in combination, as signatures of content. A process for content detection may employ one or more features as indicators of the start and/or end of a sequence containing a particular type of content and other features as verifiers of the type of content bounded by these start/end indicators. The features may be combined and/or refined to produce higher-level feature data with good computational economy and content-classification utility.

Abstract translation: 压缩视频的过程需要计算在压缩过程中使用的各种数据。 本发明利用这些数据中的一些或全部用于内容检测的目的。 例如，这些数据可以用于商业检测的目的。 亮度，运动矢量场，残差值，量化器，比特率等都可以直接地或组合地用作内容的签名。 用于内容检测的过程可以使用一个或多个特征作为包含特定类型的内容和其他特征的序列的开始和/或结束的指示，作为由这些开始/结束指示符限定的内容类型的验证者。 这些特征可以被组合和/或改进以产生具有良好计算经济性和内容分类效用的较高级别的特征数据。

公开(公告)号：US20030219708A1

公开(公告)日：2003-11-27

申请号：US10155262

申请日：2002-05-23

Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Inventor： Angel Janevski ,  Thomas McGee

IPC: G09B003/00

CPC classification number: H04N21/45452 ,  H04N21/23412 ,  H04N21/42202 ,  H04N21/44012 ,  H04N21/44222 ,  H04N21/4532 ,  H04N21/454 ,  H04N21/854

Abstract: Customizable multimedia content is transmitted in a form where some content is described by content descriptors. The content descriptors are used in the receiving device to synthesize a final version of the content. Content descriptors may include information relating to content length, expecting user mood, expected user location, content type, expected time of day of receipt, expected display device, and/or language in which the content is described. Local information may be used to inform the synthesis process. Local information may include user preferences generated from a user profile, context information detected automatically, or user preferences entered manually by a user. Alternatively, some synthesis instructions may be part of the content descriptors. Synthesizing creates a presentation of the content which may include a synthesized person, a cartoon character, an animal, a talking object, text, and/or audio.

Abstract translation: 可定制的多媒体内容以内容描述符描述某些内容的形式发送。 在接收设备中使用内容描述符来合成内容的最终版本。 内容描述符可以包括与描述内容的内容长度，期望用户情绪，预期用户位置，内容类型，接收的预期时间，期望的显示设备和/或语言相关的信息。 本地信息可用于通知合成过程。 本地信息可以包括从用户简档生成的用户偏好，自动检测的上下文信息或用户手动输入的用户偏好。 或者，一些综合指令可以是内容描述符的一部分。 合成创建可以包括合成人物，卡通人物，动物，谈话对象，文本和/或音频的内容的呈现。