4 papers
EgoPolice: A Benchmark for Egocentric Video Understanding in High-Stakes Police Body-Worn Camera Footage
Max Gonzalez Saez-Diez, Jihoon Chung, Adam D. Wolsky +5
We introduce EgoPolice, a carefully curated dataset of real, egocentric police-civilian interactions, sourced from publicly available body-worn camera videos. We select police-civi…
Which Way Did It Move? Diagnosing and Overcoming Directional Motion Blindness in Video-LLMs
Jongseo Lee, Hyuntak Lee, Sunghun Kim +3
Video Large Language Models (Video-LLMs) have made rapid progress on temporal video understanding, yet many fail at a basic perceptual primitive: signed image-plane motion directio…
Seeing Beyond the Scene: Analyzing and Mitigating Background Bias in Action Recognition
Ellie Zhou, Jihoon Chung, Olga Russakovsky
Human action recognition models often rely on background cues rather than human movement and pose to make predictions, a behavior known as background bias. We present a systematic…
Unifying Specialized Visual Encoders for Video Language Models
Jihoon Chung, Tyler Zhu, Max Gonzalez Saez-Diez +3
The recent advent of Large Language Models (LLMs) has ushered sophisticated reasoning capabilities into the realm of video through Video Large Language Models (VideoLLMs). However,…