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With an explosive growth in recorded videos, its retrieval and thorough investigation pose a great challenge. An emerging smart solution, video synopsis is thus developed to provide a compact representation of a prolonged video. It enables users to reduce hours of video footage to its equivalent short video in minutes or seconds without losing important activities in the source video. In this paper, we present a comprehensive review of the state-of-the-art as well as the challenging aspects of video synopsis. This article efficiently categorizes and summarizes the evolving trends in video synopsis and describe the prevailing general framework for synopsis generation. To enrich our study, the commonly used qualitative standards and key challenges in developing a synoptic video are also discussed. Additionally, we report the event sequences for preserving the chronological order of events in video and future directions of video synopsis. Overall, this paper aims to serve as a reference for researchers with a background of the methodologies, applications, challenges, and advances in video synopsis.
Namitha et al. (Sat,) studied this question.