Park, Jungin Lee, Jiyoung Sohn, Kwanghoon 2026-02-25T00:30:27Z 2026-02-25T00:30:27Z 2026-02-03 2025 1063-6919 https://pubs.kist.re.kr/handle/201004/154355 View-invariant representation learning from egocentric (first-person, ego) and exocentric (third-person, exo) videos is a promising approach toward generalizing video understanding systems across multiple viewpoints. However, this area has been underexplored due to the substantial differences in perspective, motion patterns, and context between ego and exo views. In this paper, we propose a novel masked ego-exo modeling that promotes both causal temporal dynamics and cross-view alignment, called Bootstrap Your Own Views (BYOV), for fine-grained view-invariant video representation learning from unpaired ego-exo videos. We highlight the importance of capturing the compositional nature of human actions as a basis for robust cross-view understanding. Specifically, self-view masking and cross-view masking predictions are designed to learn view-invariant and powerful representations concurrently. Experimental results demonstrate that our BYOV significantly surpasses existing approaches with notable gains across all metrics in four downstream ego-exo video tasks. The code is available at https://github.com/park- jungin/byov. English IEEE COMPUTER SOC Bootstrap Your Own Views: Masked Ego-Exo Modeling for Fine-grained View-invariant Video Representations Conference 10.1109/CVPR52734.2025.01275 1 2025 Conference on Computer Vision and Pattern Recognition-CVPR-Annual, pp.13661 - 13670 2025 Conference on Computer Vision and Pattern Recognition-CVPR-Annual 13661 13670 US Nashville, TN 2025-06-10 2025 IEEE/CVF CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION (CVPR) 001601141700155 2-s2.0-105017059544