首页>
外国专利>
Real-time feature-based video stream validation and distortion analysis system using color moments
Real-time feature-based video stream validation and distortion analysis system using color moments
展开▼
机译:基于色矩的基于特征的实时视频流验证和失真分析系统
展开▼
页面导航
摘要
著录项
相似文献
摘要
A real-time distortion analysis system (20) utilizes a baseline preparation processor (38) and a remote comparison processor (50) to determine (72, 78) a plurality of color and central moments for baseline and broadcast video streams respectively. The baseline stream is taken from a broadcast signal sent from a broadcast station (26), and the broadcast video stream is taken from a viewer signal sent from a remote receiving station (28, 30, 32) to viewers (34). The remote comparison processor (50) compares (82), on a frame by frame basis, the baseline and broadcast moments and determines a cumulative absolute difference which reflects differences between the two video streams. To conduct a frame by frame analysis of the two video streams, the system (20) temporally aligns the video streams. Alternatively, the system (20) uses a moment database (88) to compare the moments at a time subsequent to broadcast.
展开▼