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Xuejin Chen

14 accepted papers

2025

ResGS: Residual Densification of 3D Gaussian for Efficient Detail Recovery

ICCV 2025poster

Recently, 3D Gaussian Splatting (3D-GS) has prevailed in novel view synthesis, achieving high fidelity and efficiency. However, it often struggles to capture rich details and complete geometry. Our analysis reveals that the 3D-GS densification operation lacks adaptiveness and faces a dilemma between…

Cited by 0SourcePDFScholar
2024

Cross-Dimension Affinity Distillation for 3D EM Neuron Segmentation

CVPR 2024poster

Accurate 3D neuron segmentation from electron microscopy (EM) volumes is crucial for neuroscience research. However the complex neuron morphology often leads to over-merge and over-segmentation results. Recent advancements utilize 3D CNNs to predict a 3D affinity map with improved accuracy but suffe…

2024

GaussianPro: 3D Gaussian Splatting with Progressive Propagation

ICML 2024poster

3D Gaussian Splatting (3DGS) has recently revolutionized the field of neural rendering with its high fidelity and efficiency. However, 3DGS heavily depends on the initialized point cloud produced by Structure-from-Motion (SfM) techniques. When tackling large-scale scenes that unavoidably contain tex…

2024

Hierarchical Intra-modal Correlation Learning for Label-free 3D Semantic Segmentation

CVPR 2024poster

Recent methods for label-free 3D semantic segmentation aim to assist 3D model training by leveraging the open-world recognition ability of pre-trained vision language models. However these methods usually suffer from inconsistent and noisy pseudo-labels provided by the vision language models. To add…

Cited by 2SourcePDFScholar
2024

Learning Multimodal Volumetric Features for Large-Scale Neuron Tracing

AAAI 2024technical

The current neuron reconstruction pipeline for electron microscopy (EM) data usually includes automatic image segmentation followed by extensive human expert proofreading. In this work, we aim to reduce human workload by predicting connectivity between over-segmented neuron pieces, taking both micro…

2024

MovingParts: Motion-based 3D Part Discovery in Dynamic Radiance Field

ICLR 2024spotlight

We present MovingParts, a NeRF-based method for dynamic scene reconstruction and part discovery. We consider motion as an important cue for identifying parts, that all particles on the same part share the common motion pattern. From the perspective of fluid simulation, existing deformation-based met…

Cited by 10SourcePDFScholar
2024

Slot-VLM: Object-Event Slots for Video-Language Modeling

NeurIPS 2024poster

Video-Language Models (VLMs), powered by the advancements in Large Language Models (LLMs), are charting new frontiers in video understanding. A pivotal challenge is the development of an effective method to encapsulate video content into a set of representative tokens to align with LLMs. In this wor…

Cited by 0SourcePDFScholar
2024

UC-NERF: Neural Radiance Field for Under-Calibrated Multi-View Cameras in Autonomous Driving

ICLR 2024poster

Multi-camera setups find widespread use across various applications, such as autonomous driving, as they greatly expand sensing capabilities. Despite the fast development of Neural radiance field (NeRF) techniques and their wide applications in both indoor and outdoor scenes, applying NeRF to multi…

Cited by 9SourcePDFScholar
2023

DPF-Net: Combining Explicit Shape Priors in Deformable Primitive Field for Unsupervised Structural Reconstruction of 3D Objects

ICCV 2023poster

Unsupervised methods for reconstructing structures face significant challenges in capturing the geometric details with consistent structures among diverse shapes of the same category. To address this issue, we present a novel unsupervised structural reconstruction method, named DPF-Net, based on a n…

Cited by 9PDFScholar
2023

Learning Cross-Representation Affinity Consistency for Sparsely Supervised Biomedical Instance Segmentation

ICCV 2023poster

Sparse instance-level supervision has recently been explored to address insufficient annotation in biomedical instance segmentation, which is easier to annotate crowded instances and better preserves instance completeness for 3D volumetric datasets compared to common semi-supervision.In this paper,…

Cited by 8PDFcodeScholar
2023

Paint by Example: Exemplar-Based Image Editing With Diffusion Models

CVPR 2023poster

Language-guided image editing has achieved great success recently. In this paper, we investigate exemplar-guided image editing for more precise control. We achieve this goal by leveraging self-supervised training to disentangle and re-organize the source image and the exemplar. However, the naive ap…

2021

Dual Progressive Prototype Network for Generalized Zero-Shot Learning

NeurIPS 2021poster

Generalized Zero-Shot Learning (GZSL) aims to recognize new categories with auxiliary semantic information, e.g., category attributes. In this paper, we handle the critical issue of domain shift problem, i.e., confusion between seen and unseen categories, by progressively improving cross-domain tran…

Cited by 57SourcePDFScholar
2021

S2R-DepthNet: Learning a Generalizable Depth-Specific Structural Representation

CVPR 2021poster

Human can infer the 3D geometry of a scene from a sketch instead of a realistic image, which indicates that the spatial structure plays a fundamental role in understanding the depth of scenes. We are the first to explore the learning of a depth-specific structural representation, which captures the…

Cited by 61PDFcodeScholar
2021

Task-Independent Knowledge Makes for Transferable Representations for Generalized Zero-Shot Learning

AAAI 2021technical

Generalized Zero-Shot Learning (GZSL) targets recognizing new categories by learning transferable image representations. Existing methods find that, by aligning image representations with corresponding semantic labels, the semantic-aligned representations can be transferred to unseen categories. How…

Cited by 18SourcePDFScholar