Thumbnail Image Selection for VOD Services

摘要

The booming of video on demand (VOD) provides numerous TV series and movies for users to watch anywhere at any time. As the amount of video contents available for viewing grows explosively, thumbnail image representation of video works as a surrogate and facilitates quick and easy video retrieval. Unlike previous work, which considers representativeness as the main criterion for thumbnail image selection, the work described in this paper incorporates attractiveness as an additional criterion. Our idea is based on the observation that thumbnail image for VOD services should not only convey the gist of the video but also intrigue the users. We propose a two-stage method that efficiently utilizes visual features to select a thumbnail image from each TV series. The effectiveness of the proposed method is verified by a subjective test. The results provide further insight into the user preference.