基于SVM的视频中闪光灯的检测方法

在分析大量实验数据基础上,比较镜头切变、字幕突现或消失、光照突变等与闪光灯具有类似特征的情况后,提出了构造符号特征值的方法.符号特征值能够使得闪光灯与其他类似情况的区别更明显.在符号特征值的基础上提出了构造基于SVM的闪光灯检测器的方法,该检测器在实验中表现良好.

Flash detection in video based on SVM

After comparing flash with other situations similar to flash such as cut,caption abrupt appearing or disappearing,and illumination abrupt changing based on analysis of extensive experimental data,we propose a novel method to compute the sign feature,which is proved significantly more efficient than current practices to distinguish flash from other similar situations.A new method is developed to build SVM-based flash detector based on the sign feature and is verified to perform well in experiments.