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Peisen Zhao

6 accepted papers

2026

GranViT: A Fine-Grained Vision Model With Autoregressive Perception For MLLMs

ICLR 2026poster

Vision encoders are indispensable for allowing impressive performance of Multimodal Large Language Models (MLLMs) in vision–language tasks such as visual question answering and reasoning. However, existing vision encoders focus on global image representations but overlook fine-grained regional analy…

Cited by 0SourceScholar
2024

UMG-CLIP: A Unified Multi-Granularity Vision Generalist for Open-World Understanding

ECCV 2024poster

"Vision-language foundation models, represented by Contras-tive Language-Image Pre-training (CLIP), have gained increasing attention for jointly understanding both vision and textual tasks. However, existing approaches primarily focus on training models to match global image representations with tex…

2023

Distilling Vision-Language Pre-Training To Collaborate With Weakly-Supervised Temporal Action Localization

CVPR 2023poster

Weakly-supervised temporal action localization (WTAL) learns to detect and classify action instances with only category labels. Most methods widely adopt the off-the-shelf Classification-Based Pre-training (CBP) to generate video features for action localization. However, the different optimization…

Cited by 29SourcePDFScholar
2023

Prune Spatio-temporal Tokens by Semantic-aware Temporal Accumulation

ICCV 2023poster

Transformers have become the primary backbone of the computer vision community due to their impressive performance. However, the unfriendly computation cost impedes their potential in the video recognition domain. To optimize the speed-accuracy trade-off, we propose Semantic-aware Temporal Accumulat…

Cited by 24PDFcodeScholar
2021

Divide and Conquer for Single-Frame Temporal Action Localization

ICCV 2021poster

Single-frame temporal action localization (STAL) aims to localize actions in untrimmed videos with only one timestamp annotation for each action instance. Existing methods adopt the one-stage framework but couple the counting goal and the localization goal. This paper proposes a novel two-stage fram…

Cited by 54PDFScholar
2020

Bottom-Up Temporal Action Localization with Mutual Regularization

ECCV 2020poster

Recently, temporal action localization (TAL), extit{i.e.}, finding specific action segments in untrimmed videos, has attracted increasing attentions of the computer vision community. State-of-the-art solutions for TAL involves evaluating the frame-level probabilities of three action-indicating phase…