作者
Yong Jae Lee, Kristen Grauman
发表日期
2015/8
期刊
International Journal of Computer Vision
卷号
114
期号
1
页码范围
38-55
出版商
Springer US
简介
We present a video summarization approach for egocentric or “wearable” camera data. Given hours of video, the proposed method produces a compact storyboard summary of the camera wearer’s day. In contrast to traditional keyframe selection techniques, the resulting summary focuses on the most important objects and people with which the camera wearer interacts. To accomplish this, we develop region cues indicative of high-level saliency in egocentric video—such as the nearness to hands, gaze, and frequency of occurrence—and learn a regressor to predict the relative importance of any new region based on these cues. Using these predictions and a simple form of temporal event detection, our method selects frames for the storyboard that reflect the key object-driven happenings. We adjust the compactness of the final summary given either an importance selection criterion or a length budget; for the latter …
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