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Understanding dynamic 4D environments-3D space evolving over time-is critical for robotic and interactive systems. These applications demand systems that can process streaming point cloud video in real-time, often under resource…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Yunze Liu , Zifan Wang , Peiran Wu , Jiayang Ao

We present a simple, efficient, and scalable unfolding network, SAUNet, to simplify the network design with an adaptive alternate optimization framework for hyperspectral image (HSI) reconstruction. SAUNet customizes a Residual Adaptive…

Computer Vision and Pattern Recognition · Computer Science 2023-01-25 Junyu Wang , Shijie Wang , Wenyu Liu , Zengqiang Zheng , Xinggang Wang

Representation learning from 3D point clouds is challenging due to their inherent nature of permutation invariance and irregular distribution in space. Existing deep learning methods follow a hierarchical feature extraction paradigm in…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Rahul Chakwate , Arulkumar Subramaniam , Anurag Mittal

The analysis of 3D point clouds has diverse applications in robotics, vision and graphics. Processing them presents specific challenges since they are naturally sparse, can vary in spatial resolution and are typically unordered. Graph-based…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Mohammad Khodadad , Morteza Rezanejad , Ali Shiraee Kasmaee , Kaleem Siddiqi , Dirk Walther , Hamidreza Mahyar

In spite of the recent progresses on classifying 3D point cloud with deep CNNs, large geometric transformations like rotation and translation remain challenging problem and harm the final classification performance. To address this…

Computer Vision and Pattern Recognition · Computer Science 2019-12-24 Mingye Xu , Zhipeng Zhou , Yu Qiao

Slimmable Neural Networks (S-Net) is a novel network which enabled to select one of the predefined proportions of channels (sub-network) dynamically depending on the current computational resource availability. The accuracy of each…

Computer Vision and Pattern Recognition · Computer Science 2022-12-08 Hideaki Kuratsu , Atsuyoshi Nakamura

In the domain of supervised scene flow estimation, the process of manual labeling is both time-intensive and financially demanding. This paper introduces SSFlowNet, a semi-supervised approach for scene flow estimation, that utilizes a blend…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Jingze Chen , Junfeng Yao , Qiqin Lin , Rongzhou Zhou , Lei Li

We introduce the Shape-Image Multimodal Network (SIM-Net), a novel 2D image classification architecture that integrates 3D point cloud representations inferred directly from RGB images. Our key contribution lies in a pixel-to-point…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Youcef Sklab , Hanane Ariouat , Eric Chenin , Edi Prifti , Jean-Daniel Zucker

In this paper, we propose a novel joint instance and semantic segmentation approach, which is called JSNet, in order to address the instance and semantic segmentation of 3D point clouds simultaneously. Firstly, we build an effective…

Computer Vision and Pattern Recognition · Computer Science 2019-12-23 Lin Zhao , Wenbing Tao

In this paper, we propose the 3DFeat-Net which learns both 3D feature detector and descriptor for point cloud matching using weak supervision. Unlike many existing works, we do not require manual annotation of matching point clusters.…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Zi Jian Yew , Gim Hee Lee

Research in 3D semantic segmentation has been increasing performance metrics, like the IoU, by scaling model complexity and computational resources, leaving behind researchers and practitioners that (1) cannot access the necessary resources…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Diogo Lavado , Cláudia Soares , Alessandra Micheletti , Giovanni Bocchi , Alex Coronati , Manuel Silva , Patrizio Frosini

Edge detection is crucial in medical image processing, enabling precise extraction of structural information to support lesion identification and image analysis. Traditional edge detection models typically rely on complex Convolutional…

Computer Vision and Pattern Recognition · Computer Science 2024-08-09 Fuzhang Li , Chuan Lin

3D Question Answering (3D QA) requires the model to comprehensively understand its situated 3D scene described by the text, then reason about its surrounding environment and answer a question under that situation. However, existing methods…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Jingzhou Luo , Yang Liu , Weixing Chen , Zhen Li , Yaowei Wang , Guanbin Li , Liang Lin

In this paper, we propose a novel deep architecture tailored for 3D point cloud applications, named as SPE-Net. The embedded ``Selective Position Encoding (SPE)'' procedure relies on an attention mechanism that can effectively attend to the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Zhaofan Qiu , Yehao Li , Yu Wang , Yingwei Pan , Ting Yao , Tao Mei

Deep learning is increasingly being used to perform machine vision tasks such as classification, object detection, and segmentation on 3D point cloud data. However, deep learning inference is computationally expensive. The limited…

Image and Video Processing · Electrical Eng. & Systems 2023-08-14 Mateen Ulhaq , Ivan V. Bajić

Remarkable performance from Transformer networks in Natural Language Processing promote the development of these models in dealing with computer vision tasks such as image recognition and segmentation. In this paper, we introduce a novel…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Qi Zhong , Xian-Feng Han

Point cloud registration is a key task in many computational fields. Previous correspondence matching based methods require the inputs to have distinctive geometric structures to fit a 3D rigid transformation according to point-wise sparse…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Hao Xu , Shuaicheng Liu , Guangfu Wang , Guanghui Liu , Bing Zeng

In this paper, we propose PCPNet, a deep-learning based approach for estimating local 3D shape properties in point clouds. In contrast to the majority of prior techniques that concentrate on global or mid-level attributes, e.g., for shape…

Computational Geometry · Computer Science 2018-06-20 Paul Guerrero , Yanir Kleiman , Maks Ovsjanikov , Niloy J. Mitra

Computational materials discovery is limited by the high cost of first-principles calculations. Machine learning (ML) potentials that predict energies from crystal structures are promising, but existing methods face computational…

The deployment of high-accuracy 3D object detection models from point cloud remains a significant challenge due to their substantial computational and memory requirements. To address this, we introduce StripDet, a novel lightweight…

Computer Vision and Pattern Recognition · Computer Science 2025-09-09 Weichao Wang , Wendong Mao , Zhongfeng Wang
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