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The First EgoCross Challenge at EgoVis 2026: Cross-Domain Egocentric Video Question Answering

Published on Aug 5cs.CV

Authors

Do you know Yuqian Fu?You can claim authorship or link another user.Do you know Tianwen Qian?You can claim authorship or link another user.Do you know Yanjun Li?You can claim authorship or link another user.Do you know Yu Li?You can claim authorship or link another user.Do you know Kunyu Peng?You can claim authorship or link another user.Do you know Xu Zheng?You can claim authorship or link another user.Do you know Yongqin Xian?You can claim authorship or link another user.Do you know Alessio Tonioni?You can claim authorship or link another user.Do you know Yanwei Fu?You can claim authorship or link another user.Do you know Xiaoling Wang?You can claim authorship or link another user.Do you know Danda Paudel?You can claim authorship or link another user.Do you know Federico Tombari?You can claim authorship or link another user.Do you know Luc Van Gool?You can claim authorship or link another user.Do you know Leyi Wu?You can claim authorship or link another user.Do you know Yifan Zhao?You can claim authorship or link another user.Do you know Jinjie Zhang?You can claim authorship or link another user.Do you know Yinchuan Li?You can claim authorship or link another user.Do you know Yingcong Chen?You can claim authorship or link another user.Do you know Zixu Li?You can claim authorship or link another user.Do you know Zhiwei Chen?You can claim authorship or link another user.Do you know Zhiheng Fu?You can claim authorship or link another user.Do you know Wenbo Wang?You can claim authorship or link another user.Do you know Yupeng Hu?You can claim authorship or link another user.Do you know Weili Guan?You can claim authorship or link another user.Do you know Liqiang Nie?You can claim authorship or link another user.Do you know Takuya Murakawa?You can claim authorship or link another user.Do you know Toru Tamaki?You can claim authorship or link another user.Do you know Yi Wen?You can claim authorship or link another user.Do you know Zhenglin Du?You can claim authorship or link another user.Do you know Zhengyang Li?You can claim authorship or link another user.Do you know Lingling Li?You can claim authorship or link another user.Do you know Licheng Jiao?You can claim authorship or link another user.Do you know Wenping Ma?You can claim authorship or link another user.

Abstract

EgoCross is a cross-domain egocentric video question answering benchmark designed to evaluate whether multimodal large language models can generalize beyond common daily-life scenarios. The first EgoCross Challenge was hosted at the Third EgoVis Workshop at CVPR 2026 and evaluated models on first-person videos from four target domains: surgery, industrial assembly, extreme sports, and animal perspectives. Each test example consists of an egocentric video clip, a question, and four candidate answers, from which the model must select the correct option. This technical report introduces the challenge task, benchmark resources, and two official Codabench tracks. The Source-Limited Track restricts participants to the official baseline model and a small support set, whereas the Open-Source Track permits broader choices of models and training data under rules that prohibit the manual construction of target-domain training data. In total, the challenge received more than 1,500 submissions from over 130 participants, with 19 teams participating in the Open-Source Track and 38 teams in the Source-Limited Track. We further present the official leaderboard results and summarize the winning solutions from both tracks. We hope that this report will serve as a useful technical reference for advancing cross-domain egocentric video understanding. All resources, including the challenge data, baseline implementation, and code released by the winning teams, are made publicly available.

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1st EgoCross challenge @ EgoVis workshop, CVPR26