activity
20242026
collaborators

7 papers

cs.CV2026

Towards Multimodal Lifelong Understanding: A Dataset and Agentic Baseline

Guo Chen, Lidong Lu, Yicheng Liu +17

While datasets for video understanding have scaled to hour-long durations, they typically consist of densely concatenated clips that differ from natural, unscripted daily life. To…

cs.CV2025

Learning Visual Affordance from Audio

Lidong Lu, Guo Chen, Zhu Wei +2

We introduce Audio-Visual Affordance Grounding (AV-AG), a new task that segments object interaction regions from action sounds. Unlike existing approaches that rely on textual inst…

cs.CV2025

AV-Reasoner: Improving and Benchmarking Clue-Grounded Audio-Visual Counting for MLLMs

Lidong Lu, Guo Chen, Zhiqi Li +2

Despite progress in video understanding, current MLLMs struggle with counting tasks. Existing benchmarks are limited by short videos, close-set queries, lack of clue annotations, a…

cs.CV2025

Eagle 2.5: Boosting Long-Context Post-Training for Frontier Vision-Language Models

Guo Chen, Zhiqi Li, Shihao Wang +16

We introduce Eagle 2.5, a family of frontier vision-language models (VLMs) for long-context multimodal learning. Our work addresses the challenges in long video comprehension and h…

cs.CV2024

CG-Bench: Clue-grounded Question Answering Benchmark for Long Video Understanding

Guo Chen, Yicheng Liu, Yifei Huang +6

Most existing video understanding benchmarks for multimodal large language models (MLLMs) focus only on short videos. The limited number of benchmarks for long video understanding…

cs.CV2024

CorrAdaptor: Adaptive Local Context Learning for Correspondence Pruning

Wei Zhu, Yicheng Liu, Yuping He +5

In the fields of computer vision and robotics, accurate pixel-level correspondences are essential for enabling advanced tasks such as structure-from-motion and simultaneous localiz…

cs.CV2024

EgoVideo: Exploring Egocentric Foundation Model and Downstream Adaptation

Baoqi Pei, Guo Chen, Jilan Xu +8

In this report, we present our solutions to the EgoVis Challenges in CVPR 2024, including five tracks in the Ego4D challenge and three tracks in the EPIC-Kitchens challenge. Buildi…