activity
20232026
most citedConDaFormer: Disassembled Transformer with Local Structure Enhancement for 3D Point Cloud Understanding

9 citations · 12 across the 8 of their papers we have counts for

collaborators

11 papers

cs.CV2026

Test-Time Scaling for Video Diffusion Models via Diagnosis-Guided Candidate Recycling

Hangzhou He, Lunhao Duan, Shanshan Zhao +4

Recent video diffusion models have achieved remarkable generation quality, but high-fidelity results still largely depend on closed-source systems or costly large-scale infrastruct…

cs.CL2026

D2-ScaleAgent: Dual-Dimensional Scaling for Long Document Understanding

Hao Zhang, Longrong Yang, Lunhao Duan +3

Multi-modal retrieval-augmented generation (RAG) is a key technique for visually rich long document understanding. Existing multi-modal RAG methods are progressively advancing towa…

cs.CL2025

Scaling Beyond Context: A Survey of Multimodal Retrieval-Augmented Generation for Document Understanding

Sensen Gao, Shanshan Zhao, Xu Jiang +7

Document understanding is critical for applications from financial analysis to scientific discovery. Current approaches, whether OCR-based pipelines feeding Large Language Models (…

cs.CV2025

Ovis2.5 Technical Report

Shiyin Lu, Yang Li, Yu Xia +39

We present Ovis2.5, a successor to Ovis2 designed for native-resolution visual perception and strong multimodal reasoning. Ovis2.5 integrates a native-resolution vision transformer…

cs.CV2025

Harnessing Text-to-Image Diffusion Models for Point Cloud Self-Supervised Learning

Yiyang Chen, Shanshan Zhao, Lunhao Duan +2

Diffusion-based models, widely used in text-to-image generation, have proven effective in 2D representation learning. Recently, this framework has been extended to 3D self-supervis…

cs.CV2025

Ovis-U1 Technical Report

Guo-Hua Wang, Shanshan Zhao, Xinjie Zhang +9

In this report, we introduce Ovis-U1, a 3-billion-parameter unified model that integrates multimodal understanding, text-to-image generation, and image editing capabilities. Buildi…

cs.CV2025

High-quality Pseudo-labeling for Point Cloud Segmentation with Scene-level Annotation

Lunhao Duan, Shanshan Zhao, Xingxing Weng +2

This paper investigates indoor point cloud semantic segmentation under scene-level annotation, which is less explored compared to methods relying on sparse point-level labels. In t…

cs.CV2025★ 2 cited

Unified Multimodal Understanding and Generation Models: Advances, Challenges, and Opportunities

Shanshan Zhao, Xinjie Zhang, Jintao Guo +9

Recent years have seen remarkable progress in both multimodal understanding models and image generation models. Despite their respective successes, these two domains have evolved i…

cs.CV2024

UNIC-Adapter: Unified Image-instruction Adapter with Multi-modal Transformer for Image Generation

Lunhao Duan, Shanshan Zhao, Wenjun Yan +7

Recently, text-to-image generation models have achieved remarkable advancements, particularly with diffusion models facilitating high-quality image synthesis from textual descripti…

cs.CV2024★ 1 cited

Local-consistent Transformation Learning for Rotation-invariant Point Cloud Analysis

Yiyang Chen, Lunhao Duan, Shanshan Zhao +2

Rotation invariance is an important requirement for point shape analysis. To achieve this, current state-of-the-art methods attempt to construct the local rotation-invariant repres…

cs.CV2023★ 9 cited

ConDaFormer: Disassembled Transformer with Local Structure Enhancement for 3D Point Cloud Understanding

Lunhao Duan, Shanshan Zhao, Nan Xue +3

Transformers have been recently explored for 3D point cloud understanding with impressive progress achieved. A large number of points, over 0.1 million, make the global self-attent…