Search Results for author: Xuejin Chen

Found 26 papers, 9 papers with code

GaussianPro: 3D Gaussian Splatting with Progressive Propagation

no code implementations22 Feb 2024 Kai Cheng, Xiaoxiao Long, Kaizhi Yang, Yao Yao, Wei Yin, Yuexin Ma, Wenping Wang, Xuejin Chen

The advent of 3D Gaussian Splatting (3DGS) has recently brought about a revolution in the field of neural rendering, facilitating high-quality renderings at real-time speed.

Neural Rendering Patch Matching

Slot-VLM: SlowFast Slots for Video-Language Modeling

no code implementations20 Feb 2024 Jiaqi Xu, Cuiling Lan, Wenxuan Xie, Xuejin Chen, Yan Lu

A pivotal challenge is the development of an efficient method to encapsulate video content into a set of representative tokens to align with LLMs.

Language Modelling Object +3

Learning Multimodal Volumetric Features for Large-Scale Neuron Tracing

1 code implementation5 Jan 2024 Qihua Chen, Xuejin Chen, Chenxuan Wang, Yixiong Liu, Zhiwei Xiong, Feng Wu

In this work, we aim to reduce human workload by predicting connectivity between over-segmented neuron pieces, taking both microscopy image and 3D morphology features into account, similar to human proofreading workflow.

Contrastive Learning Image Segmentation +1

Retrieval-based Video Language Model for Efficient Long Video Question Answering

no code implementations8 Dec 2023 Jiaqi Xu, Cuiling Lan, Wenxuan Xie, Xuejin Chen, Yan Lu

To address these issues, we introduce a simple yet effective retrieval-based video language model (R-VLM) for efficient and interpretable long video QA.

Language Modelling Natural Language Understanding +4

UC-NeRF: Neural Radiance Field for Under-Calibrated Multi-view Cameras in Autonomous Driving

no code implementations28 Nov 2023 Kai Cheng, Xiaoxiao Long, Wei Yin, Jin Wang, Zhiqiang Wu, Yuexin Ma, Kaixuan Wang, Xiaozhi Chen, Xuejin Chen

Multi-camera setups find widespread use across various applications, such as autonomous driving, as they greatly expand sensing capabilities.

Autonomous Driving Depth Estimation +1

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

no code implementations ICCV 2023 Qingyao Shuai, Chi Zhang, Kaizhi Yang, Xuejin Chen

Unsupervised methods for reconstructing structures face significant challenges in capturing the geometric details with consistent structures among diverse shapes of the same category.

Shape Guided Gradient Voting for Domain Generalization

no code implementations19 Jun 2023 Jiaqi Xu, Yuwang Wang, Xuejin Chen

In this work, with the assumption that the gradients of a specific domain samples under the classification task could also reflect the property of the domain, we propose a Shape Guided Gradient Voting (SGGV) method for domain generalization.

Domain Generalization Image Classification

Region-Enhanced Feature Learning for Scene Semantic Segmentation

no code implementations15 Apr 2023 Xin Kang, Chaoqun Wang, Xuejin Chen

We design a region-based feature enhancement (RFE) module, which consists of a Semantic-Spatial Region Extraction stage and a Region Dependency Modeling stage.

Segmentation Semantic Segmentation

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

no code implementations10 Mar 2023 Kaizhi Yang, Xiaoshuai Zhang, Zhiao Huang, Xuejin Chen, Zexiang Xu, Hao Su

Under the Lagrangian view, we parameterize the scene motion by tracking the trajectory of particles on objects.

3D scene Editing

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

1 code implementation ICCV 2023 Xiaoyu Liu, Wei Huang, Zhiwei Xiong, Shenglong Zhou, Yueyi Zhang, Xuejin Chen, Zheng-Jun Zha, Feng Wu

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, we propose a sparsely supervised biomedical instance segmentation framework via cross-representation affinity consistency regularization.

Instance Segmentation Pseudo Label +1

Semantics-Preserving Sketch Embedding for Face Generation

no code implementations23 Nov 2022 Binxin Yang, Xuejin Chen, Chaoqun Wang, Chi Zhang, Zihan Chen, Xiaoyan Sun

With a semantic feature matching loss for effective semantic supervision, our sketch embedding precisely conveys the semantics in the input sketches to the synthesized images.

Face Generation Image-to-Image Translation

Exploiting Correspondences with All-pairs Correlations for Multi-view Depth Estimation

no code implementations5 May 2022 Kai Cheng, Hao Chen, Wei Yin, Guangkai Xu, Xuejin Chen

However, multi-view depth estimation is fundamentally a correspondence-based optimization problem, but previous learning-based methods mainly rely on predefined depth hypotheses to build correspondence as the cost volume and implicitly regularize it to fit depth prediction, deviating from the essence of iterative optimization based on stereo correspondence.

Depth Estimation Depth Prediction +1

Neural Message Passing for Objective-Based Uncertainty Quantification and Optimal Experimental Design

1 code implementation14 Mar 2022 Qihua Chen, Xuejin Chen, Hyun-Myung Woo, Byung-Jun Yoon

In this work, we propose a novel scheme to reduce the computational cost for objective-UQ via MOCU based on a data-driven approach.

Experimental Design Uncertainty Quantification

Dual Progressive Prototype Network for Generalized Zero-Shot Learning

no code implementations NeurIPS 2021 Chaoqun Wang, Shaobo Min, Xuejin Chen, Xiaoyan Sun, Houqiang Li

This enables DPPN to produce visual representations with accurate attribute localization ability, which benefits the semantic-visual alignment and representation transferability.

Attribute Generalized Zero-Shot Learning

Contrastive Learning for Mitochondria Segmentation

no code implementations25 Sep 2021 Zhili Li, Xuejin Chen, Jie Zhao, Zhiwei Xiong

However, due to the image degradation during the imaging process, the large variety of mitochondrial structures, as well as the presence of noise, artifacts and other sub-cellular structures, mitochondria segmentation is very challenging.

Contrastive Learning Segmentation

Multi-Modulation Network for Audio-Visual Event Localization

no code implementations26 Aug 2021 Hao Wang, Zheng-Jun Zha, Liang Li, Xuejin Chen, Jiebo Luo

We propose a novel MultiModulation Network (M2N) to learn the above correlation and leverage it as semantic guidance to modulate the related auditory, visual, and fused features.

audio-visual event localization

Unsupervised Learning for Cuboid Shape Abstraction via Joint Segmentation from Point Clouds

1 code implementation7 Jun 2021 Kaizhi Yang, Xuejin Chen

In this paper, we propose an unsupervised shape abstraction method to map a point cloud into a compact cuboid representation.

Clustering Segmentation +1

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

no code implementations5 Apr 2021 Chaoqun Wang, Xuejin Chen, Shaobo Min, Xiaoyan Sun, Houqiang Li

First, DCEN leverages task labels to cluster representations of the same semantic category by cross-modal contrastive learning and exploring semantic-visual complementarity.

Contrastive Learning Generalized Zero-Shot Learning

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

4 code implementations CVPR 2021 Xiaotian Chen, Yuwang Wang, Xuejin Chen, Wenjun Zeng

S2R-DepthNet consists of: a) a Structure Extraction (STE) module which extracts a domaininvariant structural representation from an image by disentangling the image into domain-invariant structure and domain-specific style components, b) a Depth-specific Attention (DSA) module, which learns task-specific knowledge to suppress depth-irrelevant structures for better depth estimation and generalization, and c) a depth prediction module (DP) to predict depth from the depth-specific representation.

Depth Prediction Domain Generalization +2

Compositionally Generalizable 3D Structure Prediction

1 code implementation4 Dec 2020 Songfang Han, Jiayuan Gu, Kaichun Mo, Li Yi, Siyu Hu, Xuejin Chen, Hao Su

However, there remains a much more difficult and under-explored issue on how to generalize the learned skills over unseen object categories that have very different shape geometry distributions.

3D Shape Reconstruction Object +1

DeepFacePencil: Creating Face Images from Freehand Sketches

1 code implementation31 Aug 2020 Yuhang Li, Xuejin Chen, Binxin Yang, Zihan Chen, Zhihua Cheng, Zheng-Jun Zha

In this paper, we explore the task of generating photo-realistic face images from hand-drawn sketches.

Image-to-Image Translation Translation

LinesToFacePhoto: Face Photo Generation from Lines with Conditional Self-Attention Generative Adversarial Network

no code implementations20 Oct 2019 Yuhang Li, Xuejin Chen, Feng Wu, Zheng-Jun Zha

The large-scale discriminator enforces the completeness of global structures and the small-scale discriminator encourages fine details, thereby enhancing the realism of generated face images.

Generative Adversarial Network

Structure-Aware Residual Pyramid Network for Monocular Depth Estimation

1 code implementation13 Jul 2019 Xiaotian Chen, Xuejin Chen, Zheng-Jun Zha

We propose a Residual Pyramid Decoder (RPD) which expresses global scene structure in upper levels to represent layouts, and local structure in lower levels to present shape details.

Depth Prediction Monocular Depth Estimation +1

A Two-Stream Mutual Attention Network for Semi-supervised Biomedical Segmentation with Noisy Labels

no code implementations31 Jul 2018 Shaobo Min, Xuejin Chen, Zheng-Jun Zha, Feng Wu, Yongdong Zhang

\begin{abstract} Learning-based methods suffer from a deficiency of clean annotations, especially in biomedical segmentation.

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