← Search

Tianrun Chen

15 accepted papers

2026

Learning to Label: A Reinforced Self-Evolving Framework for Semi-supervised Referring Expression Segmentation

ICML 2026poster

Semi-supervised referring expression segmentation (SS-RES) aims to achieve precise pixel-level language grounding under limited annotation, yet suffers from limited supervision and unreliable pseudo-labels when exploiting unlabeled image–text pairs. In this work, we propose Learning to Label, a rein…

Cited by 0SourceScholar
2026

Mean Flow Distillation: Robust and Stable Distillation for Flow Matching Models

ICML 2026poster

Flow Matching models have demonstrated strong performance across a wide range of generative tasks. However, their reliance on ODE-based iterative sampling incurs substantial computational overhead, which limits their applicability in real-time scenes. While distillation is a promising solution, exis…

Cited by 0SourceScholar
2026

SwiftVLA: Unlocking Spatiotemporal Dynamics for Lightweight VLA Models at Minimal Overhead

CVPR 2026

Vision-Language-Action (VLA) models built on pretrained Vision-Language Models (VLMs) show strong potential but are limited in practicality due to their large parameter counts. To mitigate this issue, using a lightweight VLM has been explored, but it compromises spatiotemporal reasoning. Although so

Cited by 0SourcecodeScholar
2025

CADCrafter: Generating Computer-Aided Design Models from Unconstrained Images

CVPR 2025poster

Creating CAD digital twins from the physical world is crucial for manufacturing, design, and simulation. However, current methods typically rely on costly 3D scanning with labor-intensive post-processing. To provide a user-friendly design process, we explore the problem of reverse engineering from u…

Cited by 3SourcePDFScholar
2025

CPCF: A Cross-Prompt Contrastive Framework for Referring Multimodal Large Language Models

ICML 2025poster

Referring MLLMs extend conventional multimodal large language models by allowing them to receive referring visual prompts and generate responses tailored to the indicated regions. However, these models often suffer from suboptimal performance due to incorrect responses tailored to misleading areas a…

Cited by 0SourcePDFScholar
2025

Distilling Diffusion Models to Efficient 3D LiDAR Scene Completion

ICCV 2025poster

Diffusion models have been applied to 3D LiDAR scene completion due to their strong training stability and high completion quality. However, the slow sampling speed limits the practical application of diffusion-based scene completion models since autonomous vehicles require an efficient perception o…

2025

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

CVPR 2025poster

Existing LVLM-based reasoning segmentation methods often suffer from imprecise segmentation results and hallucinations in their text responses. This paper introduces POPEN, a novel framework designed to address these issues and achieve improved results. POPEN includes a preference-based optimization…

Cited by 2SourcePDFScholar
2025

Retrv-R1: A Reasoning-Driven MLLM Framework for Universal and Efficient Multimodal Retrieval

NeurIPS 2025poster

The success of DeepSeek-R1 demonstrates the immense potential of using reinforcement learning (RL) to enhance LLMs' reasoning capabilities. This paper introduces Retrv-R1, the first R1-style MLLM specifically designed for multimodal universal retrieval, achieving higher performance by employing step…

Cited by 0SourceScholar
2024

Addressing Background Context Bias in Few-Shot Segmentation through Iterative Modulation

CVPR 2024poster

Existing few-shot segmentation methods usually extract foreground prototypes from support images to guide query image segmentation. However different background contexts of support and query images can cause their foreground features to be misaligned. This phenomenon known as background context bias…

Cited by 17SourcePDFScholar
2024

LLaFS: When Large Language Models Meet Few-Shot Segmentation

CVPR 2024poster

This paper proposes LLaFS the first attempt to leverage large language models (LLMs) in few-shot segmentation. In contrast to the conventional few-shot segmentation methods that only rely on the limited and biased information from the annotated support images LLaFS leverages the vast prior knowledge…

Cited by 44SourcePDFScholar
2024

Rapid 3D Model Generation with Intuitive 3D Input

CVPR 2024highlight

With the emergence of AR/VR 3D models are in tremendous demand. However conventional 3D modeling with Computer-Aided Design software requires much expertise and is difficult for novice users. We find that AR/VR devices in addition to serving as effective display mediums can offer a promising potenti…

Cited by 5SourcePDFScholar
2023

Continual Semantic Segmentation With Automatic Memory Sample Selection

CVPR 2023poster

Continual Semantic Segmentation (CSS) extends static semantic segmentation by incrementally introducing new classes for training. To alleviate the catastrophic forgetting issue in CSS, a memory buffer that stores a small number of samples from the previous classes is constructed for replay. However,…

Cited by 57SourcePDFScholar
2023

Deep3DSketch: 3D Modeling from Free-Hand Sketches with View- and Structural-Aware Adversarial Training

ICASSP 2023accepted

This work aims to investigate the problem of 3D modeling using single free-hand sketches, which is one of the most natural ways we humans express ideas. Although sketch-based 3D modeling can drastically make the 3D modeling process more accessible, the sparsity and ambiguity of sketches bring signif…

Cited by 0SourceScholar
2023

Painting 3D Nature in 2D: View Synthesis of Natural Scenes From a Single Semantic Mask

CVPR 2023poster

We introduce a novel approach that takes a single semantic mask as input to synthesize multi-view consistent color images of natural scenes, trained with a collection of single images from the Internet. Prior works on 3D-aware image synthesis either require multi-view supervision or learning categor…