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Chenxin Li

27 accepted papers

2026

Diff4Splat: Repurposing Video Diffusion Models for Dynamic Scene Generation

CVPR 2026

We introduce Diff4Splat, a feed-forward framework for dynamic scene generation from a single image. Our method synergizes the powerful generative priors of video diffusion models with geometric and motion constraints learned from a large-scale 4D dataset. Given a single image, a camera trajectory, a

Cited by 0SourcecodeScholar
2026

FALCO: Foundation Model Guided Active Learning for Cost-Effective Off-Road Freespace Detection

ICRA 2026poster

Freespace detection in unstructured off-road environments is critical for safe autonomous navigation but remains highly challenging due to ambiguous boundaries, diverse terrains, and long-tail safety-critical cases. Constructing large annotated datasets in such environments is prohibitively costly, …

Cited by 0Scholar
2026

ID-Crafter: VLM-Grounded Online RL for Compositional Multi-Subject Video Generation

CVPR 2026

Significant progress has been achieved in high-fidelity video synthesis, yet current paradigms often fall short in effectively integrating identity information from multiple subjects. This leads to semantic conflicts and suboptimal performance in preserving identities and interactions, limiting cont

Cited by 0SourceScholar
2026

Thinking in Dynamics: How Multimodal Large Language Models Perceive, Track, and Reason Dynamics in Physical 4D World

CVPR 2026

Humans inhabit a physical 4D world, where spatial geometry and semantic content evolve over time, forming a dynamic reality. While current Multimodal Large Language Models (MLLMs) demonstrate strong capabilities in understanding static visual inputs, it remains unclear whether they can effectively "

Cited by 0SourcecodeScholar
2025

ConcealGS: Concealing Invisible Copyright Information in 3D Gaussian Splatting

ICASSP 2025accepted

As 3D Gaussian Splatting (3D-GS) emerges as a promising technique for 3D reconstruction and novel view synthesis, offering superior rendering quality and efficiency, it becomes crucial to ensure secure transmission and copyright protection of 3D assets in anticipation of widespread distribution. Whi…

Cited by 0SourceScholar
2025

Dissecting Generalized Category Discovery: Multiplex Consensus under Self-Deconstruction

ICCV 2025poster

Human perceptual systems excel at inducing and recognizing objects across both known and novel categories, a capability far beyond current machine learning frameworks. While generalized category discovery (GCD) aims to bridge this gap, existing methods predominantly focus on optimizing objective fun…

2025

DynamicVerse: A Physically-Aware Multimodal Framework for 4D World Modeling

NeurIPS 2025poster

Understanding the dynamic physical world, characterized by its evolving 3D structure, real-world motion, and semantic content with textual descriptions, is crucial for human-agent interaction and enables embodied agents to perceive and act within real environments with human‑like capabilities. Howev…

Cited by 0SourceScholar
2025

FedGPS: Statistical Rectification Against Data Heterogeneity in Federated Learning

NeurIPS 2025poster

Federated Learning (FL) confronts a significant challenge known as data heterogeneity, which impairs model performance and convergence. Existing methods have made notable progress in addressing this issue. However, improving performance in certain heterogeneity scenarios remains an overlooked questi…

Cited by 0SourcecodeScholar
2025

FlexGS: Train Once, Deploy Everywhere with Many-in-One Flexible 3D Gaussian Splatting

CVPR 2025poster

3D Gaussian splatting (3DGS) has enabled various applications in 3D scene representation and novel view synthesis due to its efficient rendering capabilities. However, 3DGS demands significant GPU memory, limiting its use on devices with restricted computational resources. Previous approaches have f…

Cited by 0SourcePDFScholar
2025

Hide-in-Motion: Embedding Steganographic Copyright Information into 4D Gaussian Splatting Assets

ICRA 2025

As 4D extensions of 3D Gaussian Splatting (4D-GS) emerge as groundbreaking techniques for dynamic scene reconstruction and novel view synthesis in robotics and computer vision, ensuring the security and trustworthiness of these assets becomes crucial. While steganography has advanced significantly i

Cited by 9SourcecodeScholar
2025

HumanCrafter: Synergizing Generalizable Human Reconstruction and Semantic 3D Segmentation

NeurIPS 2025poster

Recent advances in generative models have achieved high-fidelity in 3D human reconstruction, yet their utility for specific tasks (e.g., human 3D segmentation) remains constrained. We propose HumanCrafter, a unified framework that enables the joint modeling of appearance and human-part semantics fro…

Cited by 0SourceScholar
2025

IR3D-Bench: Evaluating Vision-Language Model Scene Understanding as Agentic Inverse Rendering

NeurIPS 2025poster

Vision-language models (VLMs) excel at descriptive tasks, but whether they truly understand scenes from visual observations remains uncertain. We introduce IR3D-Bench, a benchmark challenging VLMs to demonstrate understanding through active creation rather than passive recognition. Grounded in the a…

Cited by 0SourceScholar
2025

InfoBridge: Balanced Multimodal Integration through Conditional Dependency Modeling

ICCV 2025poster

Developing systems that interpret diverse real-world signals remains a fundamental challenge in multimodal learning. Current approaches face significant obstacles from inherent modal heterogeneity. While existing methods attempt to enhance fusion through cross-modal alignment or interaction mechanis…

2025

InstantSplamp: Fast and Generalizable Stenography Framework for Generative Gaussian Splatting

ICLR 2025poster

With the rapid development of large generative models for 3D, especially the evolution from NeRF representations to more efficient Gaussian Splatting, the synthesis of 3D assets has become increasingly fast and efficient, enabling the large-scale publication and sharing of generated 3D objects. Howe…

2025

JarvisArt: Liberating Human Artistic Creativity via an Intelligent Photo Retouching Agent

NeurIPS 2025poster

Photo retouching has become integral to contemporary visual storytelling, enabling users to capture aesthetics and express creativity. While professional tools such as Adobe Lightroom offer powerful capabilities, they demand substantial expertise and manual effort. In contrast, existing AI-based sol…

Cited by 0SourceScholar
2025

JarvisIR: Elevating Autonomous Driving Perception with Intelligent Image Restoration

CVPR 2025poster

Vision-centric perception systems often struggle with unpredictable and coupled weather degradations in the wild. Current solutions are often limited, as they either depend on specific degradation priors or suffer from significant domain gaps. To enable robust and autonomous operation in real-world…

Cited by 2SourcePDFScholar
2025

MetaScope: Optics-Driven Neural Network for Ultra-Micro Metalens Endoscopy

ICCV 2025poster

Miniaturized endoscopy has advanced accurate visual perception within the human body. Prevailing research remains limited to conventional cameras employing convex lenses, where the physical constraints with millimetre-scale thickness impose serious impediments on the micro-level clinical. Recently,…

Cited by 0SourcePDFScholar
2025

MonoSplat: Generalizable 3D Gaussian Splatting from Monocular Depth Foundation Models

CVPR 2025poster

Recent advances in generalizable 3D Gaussian Splatting have demonstrated promising results in real-time high-fidelity rendering without per-scene optimization, yet existing approaches still struggle to handle unfamiliar visual content during inference on novel scenes due to limited generalizability.…

2025

Pan-LUT: Efficient Pan-sharpening via Learnable Look-Up Tables

NeurIPS 2025oral

Recently, deep learning-based pan-sharpening algorithms have achieved notable advancements over traditional methods. However, deep learning-based methods incur substantial computational overhead during inference, especially with large images. This excessive computational demand limits the applicabil…

Cited by 0SourceScholar
2025

Track Any Anomalous Object:A Granular Video Anomaly Detection Pipeline

CVPR 2025poster

Video anomaly detection (VAD) is crucial in scenarios such as surveillance and autonomous driving, where timely detection of unexpected activities is essential. Albeit existing methods have primarily focused on detecting anomalous objects in videos--either by identifying anomalous frames or objects-…

Cited by 0SourcePDFScholar
2025

U-KAN Makes Strong Backbone for Medical Image Segmentation and Generation

AAAI 2025technical

U-Net has become a cornerstone in various visual applications such as image segmentation and diffusion probability models. While numerous innovative designs and improvements have been introduced by incorporating transformers or MLPs, the networks are still limited to linearly modeling patterns as we…

2025

X2-Gaussian: 4D Radiative Gaussian Splatting for Continuous-time Tomographic Reconstruction

ICCV 2025poster

Four-dimensional computed tomography (4D CT) reconstruction is crucial for capturing dynamic anatomical changes but faces inherent limitations from conventional phase-binning workflows. Current methods discretize temporal resolution into fixed phases with respiratory gating devices, introducing moti…

2024

Flaws can be Applause: Unleashing Potential of Segmenting Ambiguous Objects in SAM

NeurIPS 2024poster

As the vision foundation models like the Segment Anything Model (SAM) demonstrate potent universality, they also present challenges in giving ambiguous and uncertain predictions. Significant variations in the model output and granularity can occur with simply subtle changes in the prompt, contradict…

2024

Vision-Language Model Fine-Tuning via Simple Parameter-Efficient Modification

EMNLP 2024main

Recent advances in fine-tuning Vision-Language Models (VLMs) have witnessed the success of prompt tuning and adapter tuning, while the classic model fine-tuning on inherent parameters seems to be overlooked. It is believed that fine-tuning the parameters of VLMs with few-shot samples corrupts the pr…

2023

StegaNeRF: Embedding Invisible Information within Neural Radiance Fields

ICCV 2023poster

Recent advancements in neural rendering have paved the way for a future marked by the widespread distribution of visual data through the sharing of Neural Radiance Field (NeRF) model weights. However, while established techniques exist for embedding ownership or copyright information within conventi…

Cited by 66PDFcodeScholar
2022

Knowledge Condensation Distillation

ECCV 2022poster

"Knowledge Distillation (KD) transfers the knowledge from a high-capacity teacher network to strengthen a smaller student. Existing methods focus on excavating the knowledge hints and transferring the whole knowledge to the student. However, the knowledge redundancy arises since the knowledge shows…