Workshop Proceedings of the 19th International AAAI Conference on Web and Social Media

Workshop: CySoc 2025: 6th International Workshop on Cyber Social Threats

DOI: 10.36190/2025.16

Published: 2025-06-05
PRISM: Perceptual Recognition for Identifying Standout Moments in Human-Centric Keyframe Extraction
Mert Can Cakmak, Nitin Agarwal, Diwash Poudel

Online videos play a central role in shaping political discourse and amplifying cyber social threats such as misinformation, propaganda, and radicalization. Detecting the most impactful or "standout" moments in video content is crucial for content moderation, summarization, and forensic analysis. In this paper, we introduce PRISM (Perceptual Recognition for Identifying Standout Moments), a lightweight and perceptually-aligned framework for keyframe extraction. PRISM operates in the CIELAB color space and uses perceptual color difference metrics to identify frames that align with human visual s...