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We present Kernel Point Convolution (KPConv), a new design of point convolution, i.e. that operates on point clouds without any intermediate representation. The convolution weights of KPConv are located in Euclidean space by kernel points,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Hugues Thomas , Charles R. Qi , Jean-Emmanuel Deschaud , Beatriz Marcotegui , François Goulette , Leonidas J. Guibas

The convolutional neural network (CNN) is one of the most commonly used architectures for computer vision tasks. The key building block of a CNN is the convolutional kernel that aggregates information from the pixel neighborhood and shares…

Image and Video Processing · Electrical Eng. & Systems 2022-02-08 Tianyu Ma , Alan Q. Wang , Adrian V. Dalca , Mert R. Sabuncu

Hyperspectral image (HSI) denoising is critical for the effective analysis and interpretation of hyperspectral data. However, simultaneously modeling global and local features is rarely explored to enhance HSI denoising. In this letter, we…

Image and Video Processing · Electrical Eng. & Systems 2024-03-18 Shuai Hu , Feng Gao , Xiaowei Zhou , Junyu Dong , Qian Du

Convolutional networks have been the paradigm of choice in many computer vision applications. The convolution operation however has a significant weakness in that it only operates on a local neighborhood, thus missing global information.…

Computer Vision and Pattern Recognition · Computer Science 2020-09-11 Irwan Bello , Barret Zoph , Ashish Vaswani , Jonathon Shlens , Quoc V. Le

Despite their strong modeling capacities, Convolutional Neural Networks (CNNs) are often scale-sensitive. For enhancing the robustness of CNNs to scale variance, multi-scale feature fusion from different layers or filters attracts great…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 Duo Li , Anbang Yao , Qifeng Chen

Dense panoptic prediction is a key ingredient in many existing applications such as autonomous driving, automated warehouses or remote sensing. Many of these applications require fast inference over large input resolutions on affordable or…

Computer Vision and Pattern Recognition · Computer Science 2023-04-19 Josip Šarić , Marin Oršić , Siniša Šegvić

Visual place recognition (VPR) plays a crucial role in robotic localization and navigation. The key challenge lies in constructing feature representations that are robust to environmental changes. Existing methods typically adopt…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Weiwei Wang , Meijia Wang , Haoyi Wang , Wenqiang Guo , Jiapan Guo , Changming Sun , Lingkun Ma , Weichuan Zhang

Recent state-of-the-art methods for point cloud processing are based on the notion of point convolution, for which several approaches have been proposed. In this paper, inspired by discrete convolution in image processing, we provide a…

Computer Vision and Pattern Recognition · Computer Science 2020-11-25 Alexandre Boulch , Gilles Puy , Renaud Marlet

Image inpainting, which refers to the synthesis of missing regions in an image, can help restore occluded or degraded areas and also serve as a precursor task for self-supervision. The current state-of-the-art models for image inpainting…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Pranav Jeevan , Dharshan Sampath Kumar , Amit Sethi

Recent years, learned image compression has made tremendous progress to achieve impressive coding efficiency. Its coding gain mainly comes from non-linear neural network-based transform and learnable entropy modeling. However, most studies…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Donghui Feng , Zhengxue Cheng , Shen Wang , Ronghua Wu , Hongwei Hu , Guo Lu , Li Song

Deep neural networks face several challenges in hyperspectral image classification, including complex and sparse ground object distributions, small clustered structures, and elongated multi-branch features that often lead to missing…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Guandong Li , Mengxia Ye

Convolutional Neural Network (CNN) is a very powerful approach to extract discriminative local descriptors for effective image search. Recent work adopts fine-tuned strategies to further improve the discriminative power of the descriptors.…

Computer Vision and Pattern Recognition · Computer Science 2017-11-28 Tuan Hoang , Thanh-Toan Do , Dang-Khoa Le Tan , Ngai-Man Cheung

Deformable image registration estimates voxel-wise correspondences between images through spatial transformations, and plays a key role in medical imaging. While deep learning methods have significantly reduced runtime, efficiently handling…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Tianran Li , Marius Staring , Yuchuan Qiao

In this paper, we propose a residual non-local attention network for high-quality image restoration. Without considering the uneven distribution of information in the corrupted images, previous methods are restricted by local convolutional…

Computer Vision and Pattern Recognition · Computer Science 2019-03-26 Yulun Zhang , Kunpeng Li , Kai Li , Bineng Zhong , Yun Fu

Conventional convolution neural networks (CNNs) trained on narrow Field-of-View (FoV) images are the state-of-the-art approaches for object recognition tasks. Some methods proposed the adaptation of CNNs to ultra-wide FoV images by learning…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Ola Ahmad , Freddy Lecue

Convolutional Neural Networks (CNNs) have exhibited their great power in a variety of vision tasks. However, the lack of transform-invariant property limits their further applications in complicated real-world scenarios. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Tong Zhang , Haohan Weng , Ke Yi , C. L. Philip Chen

In this paper, we present a novel deep learning architecture for infrared and visible images fusion problem. In contrast to conventional convolutional networks, our encoding network is combined by convolutional layers, fusion layer and…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Hui Li , Xiao-Jun Wu

Recently, deep-learning-based super-resolution methods have achieved excellent performances, but mainly focus on training a single generalized deep network by feeding numerous samples. Yet intuitively, each image has its representation, and…

Image and Video Processing · Electrical Eng. & Systems 2021-11-17 Yuanfei Huang , Jie Li , Yanting Hu , Xinbo Gao , Hua Huang

In real-world scenarios of image recognition, there exists substantial noise interference. Existing works primarily focus on methods such as adjusting networks or training strategies to address noisy image recognition, and the anti-noise…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Jiarui Xue , Dongjian Yang , Ye Sun , Gang Liu

We extend the Locally-Subdivided Neural Intersection Function (LSNIF) to support parameterized deformable and animated geometry. Our approach introduces a rest-space and deformed-space formulation inspired by meshless rendering, allowing…

Graphics · Computer Science 2026-04-28 Chih-Chen Kao , Grzegorz Makowski , Shin Fujieda , Takahiro Harada