公开(公告)号：US20050078223A1

公开(公告)日：2005-04-14

申请号：US10682315

申请日：2003-10-09

申请人： Shan Liu ,  Yeong-Taeg Kim

发明人： Shan Liu ,  Yeong-Taeg Kim

IPC分类号： H04N7/025 ,  G06K9/32 ,  H04N5/14 ,  H04N7/26

CPC分类号： H04N19/137 ,  G06K9/325 ,  H04N19/17 ,  H04N19/87

摘要： A method and system for sensing disappearance of the previously detected logos in noisy digital video signals. When a video program starts, a short period of time is allowed to initially detect the existence and the location of the logo within the incoming video frames. Once the logo is detected and a logo map is generated, logo tracking senses whether the logo remains in, or disappears from, the video frames. If the logo moves or (partially) changes its intensity, color, pattern, etc., it will be sensed as having disappeared altogether.

摘要翻译： 一种用于在噪声数字视频信号中感测先前检测到的标识消失的方法和系统。 当视频节目开始时，允许短时间来初始地检测在输入视频帧内的标识的存在和位置。 一旦检测到徽标，并且生成了标志图，标识跟踪就会检测标识是否保留在视频帧中或从视频帧中消失。 如果标志移动或（部分地）改变它的强度，颜色，图案等，它将被感觉到完全消失。