公开(公告)号：US6101274A

公开(公告)日：2000-08-08

申请号：US866970

申请日：1997-06-02

Applicant: Arturo Pizano ,  Farshid Arman ,  Daniel Conrad Benson ,  Remi Depommier

Inventor： Arturo Pizano ,  Farshid Arman ,  Daniel Conrad Benson ,  Remi Depommier

IPC: G06K9/32 ,  G06K9/36

CPC classification number: G06K9/3266 ,  G06K2209/01

Abstract: A computer-implemented method for the identification and interpretation of text captions in an encoded video stream of digital video signals comprises sampling by selecting frames for video analysis, decoding by converting each of frames selected into a digitized color image, performing edge detection for generating a grey scale image, binarizing by converting the grey scale image into a bi-level image by means of a thresholding operation, compressing groups of consecutive pixel values in the binary image, mapping the consecutive pixel values into a binary value, and separating groups of connected pixels and determining whether they are likely to be part of a text region in the image or not.

Abstract translation: 用于识别和解释数字视频信号的编码视频流中的文本标题的计算机实现的方法包括通过选择用于视频分析的帧进行采样，通过将选择的每个帧转换为数字化彩色图像进行解码，执行用于生成 灰度图像，通过阈值处理将灰度图像转换成双电平图像进行二值化，压缩二值图像中的连续像素值组，将连续像素值映射成二进制值，并分离连接的组 并确定它们是否可能是图像中的文本区域的一部分。