Browsing by Author "Lu, I-Chun"

Now showing 1 - 1 of 1

A NOVEL VIDEO SUMMARIZATION METHOD FOR MULTI-INTENSITY ILLUMINATED INFRARED VIDEOS
(2013-01-01)
Chuang, Jen-Hui
;
Tsai, Wen-Jing
;
Chan, Chia-Hsin
;
Teng, Wen-Chih
;
Lu, I-Chun
In nighttime video surveillance, proper illumination plays a key role for the image quality. For ordinary IR-illuminators with fixed intensity, faraway objects are often hard to identify due to insufficient illumination while nearby objects may suffer from over-exposure, resulting in image foreground/background of poor quality. In this paper we proposed a novel video summarization method which utilizes a novel multi-intensity IR-illuminator to generate images of human activities with different illumination levels. By adopting GMM-based foreground extraction procedure for images acquired for each illumination level, foreground objects with most plausible quality can be selected and merged with a preselected representation for still background. The result brings out a reasonable video summary for moving foreground, which is generally unachievable for nighttime surveillance videos.