公开(公告)号：US06771823B2

公开(公告)日：2004-08-03

申请号：US09811923

申请日：2001-03-19

申请人： Shinichi Sakaida ,  Hiroyuki Imaizumi ,  Yoshiaki Shishikui ,  Yasuaki Kanatsugu ,  Wentao Zheng

发明人： Shinichi Sakaida ,  Hiroyuki Imaizumi ,  Yoshiaki Shishikui ,  Yasuaki Kanatsugu ,  Wentao Zheng

IPC分类号： G06K936

CPC分类号： H04N19/23

摘要： A method of coding and transmitting moving pictures includes the steps of coding an extended background image, coding parameters indicative of an image area within the extended background image, coding a foreground picture that is to be composed with a background picture corresponding to the image area indicated by the parameters, coding a defocus value indicative of an extent to which the background picture should blur, and transmitting the coded extended background image, the coded parameters, the coded foreground picture, and the coded defocus value as a data stream to a decoder side. Coding and transmitting of the defocus value makes it possible to defocus the background picture at the decoder end, thereby producing a composed image of the background picture and the foreground picture having natural appearance.

摘要翻译： 编码和发送运动图像的方法包括以下步骤：对扩展背景图像进行编码，编码指示扩展背景图像内的图像区域的参数，编码将与所指示的图像区域相对应的背景图片组成的前景图像 通过参数编码表示背景画面应该模糊的程度的散焦值，并将编码的扩展背景图像，编码参数，编码前景画面和编码散焦值作为数据流发送到解码器侧 。 散焦值的编码和发送使得可以在解码器端散焦背景图像，从而产生背景图像的合成图像和具有自然外观的前景图像。

公开(公告)号：US20060221232A1

公开(公告)日：2006-10-05

申请号：US10554999

申请日：2004-04-21

申请人： Xuwen Yu ,  Wentao Zheng

发明人： Xuwen Yu ,  Wentao Zheng

IPC分类号： H04N7/01

CPC分类号： H04N5/44 ,  G06K9/00711 ,  H04N5/147 ,  H04N21/4221 ,  H04N21/44008 ,  H04N21/4882 ,  H04N21/812

摘要： The present invention discloses an apparatus for automatically detecting television advertisements comprising: a video frame buffer for storing a first group of video frames and a second group of video frames received by a television in which a scene change rate of the second group of video frames is substantially different from that of the first group of video frames; a video scene change detection and calculation unit for reading the first and second groups of video frames stored in the video frame buffer, determining the last frame immediately before the first group of video frames changes into the second group of video frames as a prompting frame, and calculating a correlation between a newly received video frame and the prompting frame; a prompting signal generation unit for generating a prompting signal when the correlation between the newly received video frame and the prompting frame, which is detected by the video scene change detection and calculation unit, is equal to or larger than a predetermined threshold; and a control unit for controlling the operation of the video scene change detection and calculation unit. The present invention also discloses a method for automatically detecting television advertisements.

摘要翻译： 本发明公开了一种用于自动检测电视广告的装置，包括：视频帧缓冲器，用于存储视频帧的第一组，以及由电视接收的第二组视频帧，其中第二组视频帧的场景变化率为 与第一组视频帧基本不同; 视频场景变化检测和计算单元，用于读取存储在视频帧缓冲器中的第一和第二组视频帧，将第一组视频帧之前的最后一帧确定为第二组视频帧，作为提示帧， 以及计算新接收的视频帧与提示帧之间的相关性; 提示信号生成单元，用于当由视频场景变化检测和计算单元检测到的新接收到的视频帧和提示帧之间的相关性等于或大于预定阈值时，产生提示信号; 以及控制单元，用于控制视频场景变化检测和计算单元的操作。 本发明还公开了一种自动检测电视广告的方法。

公开(公告)号：US09087401B1

公开(公告)日：2015-07-21

申请号：US13550222

申请日：2012-07-16

申请人： Wentao Zheng ,  Kenneth James Turner

发明人： Wentao Zheng ,  Kenneth James Turner

IPC分类号： G06T19/00

CPC分类号： G06T15/00 ,  G06T15/205 ,  G06T19/006

摘要： A computer-implemented method, system and computer-readable storage device provide functionality for managing location information for planar regions in two-dimensional views of a three-dimensional environment. A request is received for a first two-dimensional view of a three-dimensional environment that identifies a first planar region associated with content within the three-dimensional environment. The first two-dimensional view is rendered and displayed. A request is received for a second two-dimensional view from a second location. A distance and direction between the location of the first planar region and the location for the second view are determined and used to establish a second location of the planar region in the second two-dimensional view, and then use this information to help render and display the second two-dimensional view.

摘要翻译： 计算机实现的方法，系统和计算机可读存储设备提供用于管理三维环境的二维视图中的平面区域的位置信息的功能。 接收到用于标识与三维环境内的内容相关联的第一平面区域的三维环境的第一二维视图的请求。 第一个二维视图被渲染和显示。 从第二位置接收到用于第二二维视图的请求。 确定第一平面区域的位置和第二视图的位置之间的距离和方向，并用于在第二二维视图中建立平面区域的第二位置，然后使用该信息来帮助渲染和显示 第二个二维视图。