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We introduce Multi-Source 3D (MS3D), a new self-training pipeline for unsupervised domain adaptation in 3D object detection. Despite the remarkable accuracy of 3D detectors, they often overfit to specific domain biases, leading to…

Computer Vision and Pattern Recognition · Computer Science 2023-05-10 Darren Tsai , Julie Stephany Berrio , Mao Shan , Eduardo Nebot , Stewart Worrall

The alignment of pre-trained LLMs continues to draw significant attention from both industry and academia, aiming to ensure responses that are helpful, harmless, and honest. However, identifying a point in the model's representation…

Computation and Language · Computer Science 2026-01-22 Selim Furkan Tekin , Fatih Ilhan , Tiansheng Huang , Sihao Hu , Yichang Xu , Zachary Yahn , Ling Liu

Effectively parsing the facade is essential to 3D building reconstruction, which is an important computer vision problem with a large amount of applications in high precision map for navigation, computer aided design, and city generation…

Computer Vision and Pattern Recognition · Computer Science 2021-06-03 Hantang Liu , Wentong Li , Jianke Zhu

State-of-the-art LiDAR-camera 3D object detectors usually focus on feature fusion. However, they neglect the factor of depth while designing the fusion strategy. In this work, we are the first to observe that different modalities play…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Mingqian Ji , Jian Yang , Shanshan Zhang

The dominant paradigm in 3D human pose estimation that lifts a 2D pose sequence to 3D heavily relies on long-term temporal clues (i.e., using a daunting number of video frames) for improved accuracy, which incurs performance saturation,…

Computer Vision and Pattern Recognition · Computer Science 2023-11-10 Qitao Zhao , Ce Zheng , Mengyuan Liu , Chen Chen

Dense prediction in medical volume provides enriched guidance for clinical analysis. CNN backbones have met bottleneck due to lack of long-range dependencies and global context modeling power. Recent works proposed to combine vision…

Computer Vision and Pattern Recognition · Computer Science 2022-04-15 Jianye Pang , Cheng Jiang , Yihao Chen , Jianbo Chang , Ming Feng , Renzhi Wang , Jianhua Yao

Class-agnostic 3D instance segmentation tackles the challenging task of segmenting all object instances, including previously unseen ones, without semantic class reliance. Current methods struggle with generalization due to the scarce…

Computer Vision and Pattern Recognition · Computer Science 2025-12-11 Shengchao Zhou , Jiehong Lin , Jiahui Liu , Shizhen Zhao , Chirui Chang , Xiaojuan Qi

Automatic segmentation of fine-grained brain structures remains a challenging task. Current segmentation methods mainly utilize 2D and 3D deep neural networks. The 2D networks take image slices as input to produce coarse segmentation in…

Computer Vision and Pattern Recognition · Computer Science 2019-05-08 Yuemeng Li , Hangfan Liu , Hongming Li , Yong Fan

Contrastive learning has emerged as a promising paradigm for 3D open-world understanding, i.e., aligning point cloud representation to image and text embedding space individually. In this paper, we introduce MixCon3D, a simple yet effective…

Computer Vision and Pattern Recognition · Computer Science 2024-04-08 Yipeng Gao , Zeyu Wang , Wei-Shi Zheng , Cihang Xie , Yuyin Zhou

The contextual information, presented in abdominal CT scan, is relative consistent. In order to make full use of the overall 3D context, we develop a whole-volume-based coarse-to-fine framework for efficient and effective abdominal…

Image and Video Processing · Electrical Eng. & Systems 2021-11-01 Fan Zhang , Yu Wang , Hua Yang

Developing deep neural networks to generate 3D scenes is a fundamental problem in neural synthesis with immediate applications in architectural CAD, computer graphics, as well as in generating virtual robot training environments. This task…

Computer Vision and Pattern Recognition · Computer Science 2021-09-02 Haitao Yang , Zaiwei Zhang , Siming Yan , Haibin Huang , Chongyang Ma , Yi Zheng , Chandrajit Bajaj , Qixing Huang

We introduce PAT3D, the first physics-augmented text-to-3D scene generation framework that integrates vision-language models with physics-based simulation to produce physically plausible, simulation-ready, and intersection-free 3D scenes.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Guying Lin , Kemeng Huang , Michael Liu , Ruihan Gao , Hanke Chen , Lyuhao Chen , Beijia Lu , Taku Komura , Yuan Liu , Jun-Yan Zhu , Minchen Li

Detecting aligned 3D keypoints is essential under many scenarios such as object tracking, shape retrieval and robotics. However, it is generally hard to prepare a high-quality dataset for all types of objects due to the ambiguity of…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Ruoxi Shi , Zhengrong Xue , Yang You , Cewu Lu

In this work we propose 3D-FFS, a novel approach to make sensor fusion based 3D object detection networks significantly faster using a class of computationally inexpensive heuristics. Existing sensor fusion based networks generate 3D region…

Computer Vision and Pattern Recognition · Computer Science 2021-10-05 Aniruddha Ganguly , Tasin Ishmam , Khandker Aftarul Islam , Md Zahidur Rahman , Md. Shamsuzzoha Bayzid

The segmentation of organs in volumetric medical images plays an important role in computer-aided diagnosis and treatment/surgery planning. Conventional 2D convolutional neural networks (CNNs) can hardly exploit the spatial correlation of…

Image and Video Processing · Electrical Eng. & Systems 2024-05-21 Zhuoyuan Wang , Dong Sun , Xiangyun Zeng , Ruodai Wu , Yi Wang

Diffusion Probabilistic Models (DPMs) have demonstrated significant potential in 3D medical image segmentation tasks. However, their high computational cost and inability to fully capture global 3D contextual information limit their…

Image and Video Processing · Electrical Eng. & Systems 2025-04-17 Kangbo Ma

Neural representations have emerged as a new paradigm for applications in rendering, imaging, geometric modeling, and simulation. Compared to traditional representations such as meshes, point clouds, or volumes they can be flexibly…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Julien N. P. Martel , David B. Lindell , Connor Z. Lin , Eric R. Chan , Marco Monteiro , Gordon Wetzstein

Multimodal medical image fusion plays an instrumental role in several areas of medical image processing, particularly in disease recognition and tumor detection. Traditional fusion methods tend to process each modality independently before…

Image and Video Processing · Electrical Eng. & Systems 2023-10-11 Lin Liu , Xinxin Fan , Chulong Zhang , Jingjing Dai , Yaoqin Xie , Xiaokun Liang

Universal Lesion Detection (ULD) in computed tomography (CT) plays an essential role in computer-aided diagnosis. Promising ULD results have been reported by anchor-based detection designs, but they have inherent drawbacks due to the use of…

Image and Video Processing · Electrical Eng. & Systems 2023-03-29 Peiang Zhao , Han Li , Ruiyang Jin , S. Kevin Zhou

Context plays a crucial role in visual recognition as it provides complementary clues for different learning tasks including image classification and annotation. As the performances of these tasks are currently reaching a plateau, any extra…

Computer Vision and Pattern Recognition · Computer Science 2020-01-01 Mingyuan Jiu , Hichem Sahbi