activity
20232026
most citedPoint Cloud Mamba: Point Cloud Learning via State Space Model

11 citations · 21 across the 18 of their papers we have counts for

collaborators

20 papers

cs.CV2026

PixelEyes: Decoupling Perception and Reasoning for Pinpoint Visual Evidence Seeking

Dengxian Gong, Yuanzheng Wu, Haobo Yuan +11

This paper explores multi-turn visual reasoning and observes that MLLMs repeatedly fail to localize the target, leading to long, redundant trajectories. We attribute this failure t…

cs.CV2026

Towards One-to-Many Temporal Grounding

Qi Xu, Yue Tan, Shihao Chen +5

Temporal Grounding (TG) aims to localize video segments corresponding to a textual query. Prior research predominantly focuses on single-segment retrieval. Real-world scenarios, ho…

cs.CV2026

Report of the 5th PVUW Challenge: Towards More Diverse Modalities in Pixel-Level Understanding

Chang Liu, Henghui Ding, Nikhila Ravi +40

This report summarizes the objectives, datasets, and top-performing methodologies of the 2026 Pixel-level Video Understanding in the Wild (PVUW) Challenge, hosted at CVPR 2026, whi…

cs.CV2026

SaSaSaSa2VA: 2nd Place of the 5th PVUW MeViS-Text Track

Dengxian Gong, Quanzhu Niu, Shihao Chen +6

Referring video object segmentation (RVOS) commonly grounds targets in videos based on static textual cues. MeViS benchmark extends this by incorporating motion-centric expressions…

cs.CV2026

SAMTok: Representing Any Mask with Two Words

Yikang Zhou, Tao Zhang, Dengxian Gong +13

Pixel-wise capabilities are essential for building interactive intelligent systems. However, pixel-wise multi-modal LLMs (MLLMs) remain difficult to scale due to complex region-lev…

cs.CV2025

The 1st Solution for 7th LSVOS RVOS Track: SaSaSa2VA

Quanzhu Niu, Dengxian Gong, Shihao Chen +6

Referring video object segmentation (RVOS) requires segmenting and tracking objects in videos conditioned on natural-language expressions, demanding fine-grained understanding of b…

cs.CV2025

LSVOS 2025 Challenge Report: Recent Advances in Complex Video Object Segmentation

Chang Liu, Henghui Ding, Kaining Ying +46

This report presents an overview of the 7th Large-scale Video Object Segmentation (LSVOS) Challenge held in conjunction with ICCV 2025. Besides the two traditional tracks of LSVOS…

cs.CV2025

DeH4R: A Decoupled and Hybrid Method for Road Network Graph Extraction

Dengxian Gong, Shunping Ji

The automated extraction of complete and precise road network graphs from remote sensing imagery remains a critical challenge in geospatial computer vision. Segmentation-based appr…

cs.CV2025

Beyond Appearance: Geometric Cues for Robust Video Instance Segmentation

Quanzhu Niu, Yikang Zhou, Shihao Chen +2

Video Instance Segmentation (VIS) fundamentally struggles with pervasive challenges including object occlusions, motion blur, and appearance variations during temporal association.…

cs.CV2025

VectorLLM: Human-like Extraction of Structured Building Contours vis Multimodal LLMs

Tao Zhang, Shiqing Wei, Shihao Chen +3

Automatically extracting vectorized building contours from remote sensing imagery is crucial for urban planning, population estimation, and disaster assessment. Current state-of-th…

cs.CV2025

SIU3R: Simultaneous Scene Understanding and 3D Reconstruction Beyond Feature Alignment

Qi Xu, Dongxu Wei, Lingzhe Zhao +4

Simultaneous understanding and 3D reconstruction plays an important role in developing end-to-end embodied intelligent systems. To achieve this, recent approaches resort to 2D-to-3…

cs.CV2025

Dense360: Dense Understanding from Omnidirectional Panoramas

Yikang Zhou, Tao Zhang, Dizhe Zhang +3

Multimodal Large Language Models (MLLMs) require comprehensive visual inputs to achieve dense understanding of the physical world. While existing MLLMs demonstrate impressive world…

cs.CV2025

Pixel-SAIL: Single Transformer For Pixel-Grounded Understanding

Tao Zhang, Xiangtai Li, Zilong Huang +6

Multimodal Large Language Models (MLLMs) achieve remarkable performance for fine-grained pixel-level understanding tasks. However, all the works rely heavily on extra components, s…

cs.CV2025

Are They the Same? Exploring Visual Correspondence Shortcomings of Multimodal LLMs

Yikang Zhou, Tao Zhang, Shilin Xu +7

Recent advancements in multimodal large language models (MLLM) have shown a strong ability in visual perception, reasoning abilities, and vision-language understanding. However, th…

cs.CV2025★ 1 cited

Sa2VA: Marrying SAM2 with MLLM for Dense Grounded Understanding of Images and Videos

Haobo Yuan, Xiangtai Li, Tao Zhang +8

This work presents Sa2VA, the first comprehensive, unified model for dense grounded understanding of both images and videos. Unlike existing multi-modal large language models, whic…

cs.CV2024★ 6 cited

OMG-LLaVA: Bridging Image-level, Object-level, Pixel-level Reasoning and Understanding

Tao Zhang, Xiangtai Li, Hao Fei +5

Current universal segmentation methods demonstrate strong capabilities in pixel-level image and video understanding. However, they lack reasoning abilities and cannot be controlled…

cs.CV2024

P2PFormer: A Primitive-to-polygon Method for Regular Building Contour Extraction from Remote Sensing Images

Tao Zhang, Shiqing Wei, Yikang Zhou +3

Extracting building contours from remote sensing imagery is a significant challenge due to buildings' complex and diverse shapes, occlusions, and noise. Existing methods often stru…

cs.CV2024

DVIS-DAQ: Improving Video Segmentation via Dynamic Anchor Queries

Yikang Zhou, Tao Zhang, Shunping Ji +2

Modern video segmentation methods adopt object queries to perform inter-frame association and demonstrate satisfactory performance in tracking continuously appearing objects despit…

cs.CV2024★ 11 cited

Point Cloud Mamba: Point Cloud Learning via State Space Model

Tao Zhang, Haobo Yuan, Lu Qi +5

Recently, state space models have exhibited strong global modeling capabilities and linear computational complexity in contrast to transformers. This research focuses on applying s…

cs.CV2023★ 3 cited

DVIS++: Improved Decoupled Framework for Universal Video Segmentation

Tao Zhang, Xingye Tian, Yikang Zhou +7

We present the \textbf{D}ecoupled \textbf{VI}deo \textbf{S}egmentation (DVIS) framework, a novel approach for the challenging task of universal video segmentation, including video…