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Fusion of 2D images and 3D point clouds is important because information from dense images can enhance sparse point clouds. However, fusion is challenging because 2D and 3D data live in different spaces. In this work, we propose MVPNet…

Computer Vision and Pattern Recognition · Computer Science 2019-10-01 Maximilian Jaritz , Jiayuan Gu , Hao Su

In this paper, we propose a spatial graph convolution (GC) to classify signals on a graph. Existing GC methods are limited to using the structural information in the feature space. Additionally, the single step of GCs only uses features on…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Yang Li , Yuichi Tanaka

This paper presents a simple yet very effective data-driven approach to fuse both low-level and high-level local geometric features for 3D rigid data matching. It is a common practice to generate distinctive geometric descriptors by fusing…

Computer Vision and Pattern Recognition · Computer Science 2019-04-30 Jiaqi Yang , Chen Zhao , Ke Xian , Angfan Zhu , Zhiguo Cao

3D object recognition accuracy can be improved by learning the multi-scale spatial features from 3D spatial geometric representations of objects such as point clouds, 3D models, surfaces, and RGB-D data. Current deep learning approaches…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Sambit Ghadai , Xian Lee , Aditya Balu , Soumik Sarkar , Adarsh Krishnamurthy

Scene graphs have been recently introduced into 3D spatial understanding as a comprehensive representation of the scene. The alignment between 3D scene graphs is the first step of many downstream tasks such as scene graph aided point cloud…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Yaxu Xie , Alain Pagani , Didier Stricker

Voxel-based 3D object classification has been thoroughly studied in recent years. Most previous methods convert the classic 2D convolution into a 3D form that will be further applied to objects with binary voxel representation for…

Computer Vision and Pattern Recognition · Computer Science 2023-05-01 Ji Luo , Hui Cao , Jie Wang , Siyu Zhang , Shen Cai

Infrared and visible image fusion aims to extract complementary features to synthesize a single fused image. Many methods employ convolutional neural networks (CNNs) to extract local features due to its translation invariance and locality.…

Computer Vision and Pattern Recognition · Computer Science 2023-11-02 Jing Li , Lu Bai , Bin Yang , Chang Li , Lingfei Ma , Edwin R. Hancock

Traditional Machine Learning (ML) methods require large amounts of data to perform well, limiting their applicability in sparse or incomplete scenarios and forcing the usage of additional synthetic data to improve the model training. To…

Machine Learning · Computer Science 2025-11-18 Rosario Napoli , Giovanni Lonia , Antonio Celesti , Massimo Villari , Maria Fazio

A key challenge in video enhancement and action recognition is to fuse useful information from neighboring frames. Recent works suggest establishing accurate correspondences between neighboring frames before fusing temporal information.…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Shuyang Gu , Jianmin Bao , Dong Chen

Many LiDAR-based methods for detecting large objects, single-class object detection, or under easy situations were claimed to perform quite well. However, their performances of detecting small objects or under hard situations did not…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Chia-Hung Wang , Hsueh-Wei Chen , Li-Chen Fu

Aiming at highly accurate object detection for connected and automated vehicles (CAVs), this paper presents a Deep Neural Network based 3D object detection model that leverages a three-stage feature extractor by developing a novel…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Yiming Hou , Mahdi Rezaei , Richard Romano

The geometry of three-dimensional (3D) graphs, consisting of nodes and edges, plays a crucial role in many important applications. An excellent example is molecular graphs, whose geometry influences important properties of a molecule…

Computer Vision and Pattern Recognition · Computer Science 2020-06-03 Daniel T. Chang

Recent applications of Convolutional Neural Networks (ConvNets) for human action recognition in videos have proposed different solutions for incorporating the appearance and motion information. We study a number of ways of fusing ConvNet…

Computer Vision and Pattern Recognition · Computer Science 2016-09-27 Christoph Feichtenhofer , Axel Pinz , Andrew Zisserman

Recently, the popularity of depth-sensors such as Kinect has made depth videos easily available while its advantages have not been fully exploited. This paper investigates, for gesture recognition, to explore the spatial and temporal…

Computer Vision and Pattern Recognition · Computer Science 2016-11-29 Jiali Duan , Shuai Zhou , Jun Wan , Xiaoyuan Guo , Stan Z. Li

Geo-localization is a critical task in computer vision. In this work, we cast the geo-localization as a 2D image retrieval task. Current state-of-the-art methods for 2D geo-localization are not robust to locate a scene with drastic scale…

Computer Vision and Pattern Recognition · Computer Science 2021-02-19 Liqi Yan , Yiming Cui , Yingjie Chen , Dongfang Liu

LiDAR-camera fusion can enhance the performance of 3D object detection by utilizing complementary information between depth-aware LiDAR points and semantically rich images. Existing voxel-based methods face significant challenges when…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Ziying Song , Guoxin Zhang , Jun Xie , Lin Liu , Caiyan Jia , Shaoqing Xu , Zhepeng Wang

This paper presents a real-time online vision framework to jointly recover an indoor scene's 3D structure and semantic label. Given noisy depth maps, a camera trajectory, and 2D semantic labels at train time, the proposed deep neural…

Computer Vision and Pattern Recognition · Computer Science 2021-12-30 Davide Menini , Suryansh Kumar , Martin R. Oswald , Erik Sandstrom , Cristian Sminchisescu , Luc Van Gool

In this paper, a novel multi-view methodology for graph-based neural networks is proposed. A systematic and methodological adaptation of the key concepts of classical deep learning methods such as convolution, pooling and multi-view…

Computer Vision and Pattern Recognition · Computer Science 2020-07-27 Nikolas Adaloglou , Nicholas Vretos , Petros Daras

The goal of multi-modal learning is to use complimentary information on the relevant task provided by the multiple modalities to achieve reliable and robust performance. Recently, deep learning has led significant improvement in multi-modal…

Computer Vision and Pattern Recognition · Computer Science 2018-11-05 Jaekyum Kim , Junho Koh , Yecheol Kim , Jaehyung Choi , Youngbae Hwang , Jun Won Choi

We present a multi-filtering Graph Convolution Neural Network (GCN) framework for network embedding task. It uses multiple local GCN filters to do feature extraction in every propagation layer. We show this approach could capture different…

Machine Learning · Computer Science 2020-04-06 Tingyi Wanyan , Chenwei Zhang , Ariful Azad , Xiaomin Liang , Daifeng Li , Ying Ding