公开(公告)号：US20090256829A1

公开(公告)日：2009-10-15

申请号：US12101685

申请日：2008-04-11

申请人： Bing Ouyang ,  John Michael Hayden ,  Troy Lane Ethridge ,  Amit Mittal ,  Jeffrey Kenneth Smith

发明人： Bing Ouyang ,  John Michael Hayden ,  Troy Lane Ethridge ,  Amit Mittal ,  Jeffrey Kenneth Smith

IPC分类号： G09G5/00 ,  H04N17/00

CPC分类号： G09G5/008 ,  H04N5/04

摘要： A system and method for detecting sampling frequency in a video signal. A method comprises applying a first test to determine the sampling frequency of the image signal, applying a second test to determine the sampling frequency of the image signal, and verifying the sampling frequency of the image signal. The first test compares detected timing characteristics of the image signal with known timing characteristics of a set of known standard image signals and the second test measures data characteristics of image data in the multiple image frames of the image signal. Combining both detected image characteristics and measured image characteristics based techniques to determine sampling frequency improves the possibility of correctly detecting an image signal's sampling frequency.

摘要翻译： 一种用于检测视频信号中的采样频率的系统和方法。 一种方法包括应用第一测试以确定图像信号的采样频率，应用第二测试以确定图像信号的采样频率，以及验证图像信号的采样频率。 第一测试将图像信号的检测到的定时特性与一组已知标准图像信号的已知定时特性进行比较，以及第二测试测量图像信号的多个图像帧中的图像数据的数据特性。 结合检测到的图像特征和基于测量图像特征的技术来确定采样频率提高了正确检测图像信号采样频率的可能性。