一种监控视频系统光照补偿方法
Illumination Compensation Method for Surveillance Video System
摘要:
本文描述的视频光照补偿系统在不更改用户现有视频监控系统的硬件基础上，通过终端嵌入视频处理系统软件，对视频信号进行光照补偿。本文定义了亮度系数的概念，确定了有效的亮度系数阀值，用以决定是否进入光照补偿模块。在光照补偿算法中，本文在视频帧间处理过程中通过计算两帧图像亮度系数差值来决定是否采用前一帧图像的亮度增量，从而有效的减少了程序运行时间。
Abstract:
The video illumination compensation system described in this paper can compensate the illumi-nation of the video signal by embedding the software of the video processing system into the ter-minal without changing the hardware of the user’s existing video surveillance system. In this paper, the concept of brightness coefficient is defined, and the valid threshold of brightness coefficient is determined to decide whether to enter the illumination compensation module or not. In the illumination compensation algorithm, this paper calculates the difference of brightness coefficients between two frames to decide whether to use the brightness increment of the previous frame in the process of video inter-frame processing, which effectively reduces the running time of the program.
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