activity
20232026
most citedRoad Extraction with Satellite Images and Partial Road Maps

35 citations · 58 across the 17 of their papers we have counts for

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8 papers · 1 filter

cs.CV2025

Language-Instructed Reasoning for Group Activity Detection via Multimodal Large Language Model

Jihua Peng, Qianxiong Xu, Yichen Liu +4

Group activity detection (GAD) aims to simultaneously identify group members and categorize their collective activities within video sequences. Existing deep learning-based methods…

cs.CV2025

SAMITE: Position Prompted SAM2 with Calibrated Memory for Visual Object Tracking

Qianxiong Xu, Lanyun Zhu, Chenxi Liu +4

Visual Object Tracking (VOT) is widely used in applications like autonomous driving to continuously track targets in videos. Existing methods can be roughly categorized into templa…

cs.CV2025

Unlocking the Power of SAM 2 for Few-Shot Segmentation

Qianxiong Xu, Lanyun Zhu, Xuanyi Liu +4

Few-Shot Segmentation (FSS) aims to learn class-agnostic segmentation on few classes to segment arbitrary classes, but at the risk of overfitting. To address this, some methods use…

cs.CV2025

POPEN: Preference-Based Optimization and Ensemble for LVLM-Based Reasoning Segmentation

Lanyun Zhu, Tianrun Chen, Qianxiong Xu +5

Existing LVLM-based reasoning segmentation methods often suffer from imprecise segmentation results and hallucinations in their text responses. This paper introduces POPEN, a novel…

cs.CV2024★ 2 cited

Hybrid Mamba for Few-Shot Segmentation

Qianxiong Xu, Xuanyi Liu, Lanyun Zhu +4

Many few-shot segmentation (FSS) methods use cross attention to fuse support foreground (FG) into query features, regardless of the quadratic complexity. A recent advance Mamba can…

cs.CV2024★ 1 cited

Eliminating Feature Ambiguity for Few-Shot Segmentation

Qianxiong Xu, Guosheng Lin, Chen Change Loy +3

Recent advancements in few-shot segmentation (FSS) have exploited pixel-by-pixel matching between query and support features, typically based on cross attention, which selectively…

cs.CV2023★ 5 cited

Self-Calibrated Cross Attention Network for Few-Shot Segmentation

Qianxiong Xu, Wenting Zhao, Guosheng Lin +1

The key to the success of few-shot segmentation (FSS) lies in how to effectively utilize support samples. Most solutions compress support foreground (FG) features into prototypes,…

cs.CV2023★ 35 cited

Road Extraction with Satellite Images and Partial Road Maps

Qianxiong Xu, Cheng Long, Liang Yu +1

Road extraction is a process of automatically generating road maps mainly from satellite images. Existing models all target to generate roads from the scratch despite that a large…