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The application of deep learning to 3D point clouds is challenging due to its lack of order. Inspired by the point embeddings of PointNet and the edge embeddings of DGCNNs, we propose three improvements to the task of point cloud analysis.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-09 Chaitanya Kaul , Nick Pears , Suresh Manandhar

The advancement of deep learning has driven notable progress in remote sensing semantic segmentation. Attention mechanisms, while enabling global modeling and utilizing contextual information, face challenges of high computational costs and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Yang Yang , Shunyi Zheng

We present AGL-NET, a novel learning-based method for global localization using LiDAR point clouds and satellite maps. AGL-NET tackles two critical challenges: bridging the representation gap between image and points modalities for robust…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Tianrui Guan , Ruiqi Xian , Xijun Wang , Xiyang Wu , Mohamed Elnoor , Daeun Song , Dinesh Manocha

LiDAR-based place recognition is one of the key components of SLAM and global localization in autonomous vehicles and robotics applications. With the success of DL approaches in learning useful information from 3D LiDARs, place recognition…

Computer Vision and Pattern Recognition · Computer Science 2023-01-05 Tiago Barros , Luís Garrote , Ricardo Pereira , Cristiano Premebida , Urbano J. Nunes

Semantic segmentation for extracting buildings and roads from uncrewed aerial vehicle (UAV) remote sensing images by deep learning becomes a more efficient and convenient method than traditional manual segmentation in surveying and mapping…

Computer Vision and Pattern Recognition · Computer Science 2023-07-07 Xiaoxiang Han , Yiman Liu , Gang Liu , Yuanjie Lin , Qiaohong Liu

In this paper, we propose an end to end solution for image matting i.e high-precision extraction of foreground objects from natural images. Image matting and background detection can be achieved easily through chroma keying in a studio…

Computer Vision and Pattern Recognition · Computer Science 2020-03-26 Rishab Sharma , Rahul Deora , Anirudha Vishvakarma

Point cloud segmentation is one of the most important tasks in computer vision with widespread scientific, industrial, and commercial applications. The research thereof has resulted in many breakthroughs in 3D object and scene…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Dening Lu , Jun Zhou , Kyle Yilin Gao , Dilong Li , Jing Du , Linlin Xu , Jonathan Li

The combination of the traditional convolutional network (i.e., an auto-encoder) and the graph convolutional network has attracted much attention in clustering, in which the auto-encoder extracts the node attribute feature and the graph…

Computer Vision and Pattern Recognition · Computer Science 2021-08-13 Zhihao Peng , Hui Liu , Yuheng Jia , Junhui Hou

This paper presents a novel keypoints-based attention mechanism for visual recognition in still images. Deep Convolutional Neural Networks (CNNs) for recognizing images with distinctive classes have shown great success, but their…

Computer Vision and Pattern Recognition · Computer Science 2021-10-26 Asish Bera , Zachary Wharton , Yonghuai Liu , Nik Bessis , Ardhendu Behera

Spatial and channel re-calibration have become powerful concepts in computer vision. Their ability to capture long-range dependencies is especially useful for those networks that extract local features, such as CNNs. While re-calibration…

Computer Vision and Pattern Recognition · Computer Science 2020-11-26 Ignacio Sarasua , Sebastian Poelsterl , Christian Wachinger

Different empirical models have been developed for cloud detection. There is a growing interest in using the ground-based sky/cloud images for this purpose. Several methods exist that perform binary segmentation of clouds. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2019-03-18 Soumyabrata Dev , Shilpa Manandhar , Yee Hui Lee , Stefan Winkler

Contextual information is vital in visual understanding problems, such as semantic segmentation and object detection. We propose a Criss-Cross Network (CCNet) for obtaining full-image contextual information in a very effective and efficient…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Zilong Huang , Xinggang Wang , Yunchao Wei , Lichao Huang , Humphrey Shi , Wenyu Liu , Thomas S. Huang

Buildings' segmentation is a fundamental task in the field of earth observation and aerial imagery analysis. Most existing deep learning-based methods in the literature can be applied to a fixed or narrow-range spatial resolution imagery.…

Computer Vision and Pattern Recognition · Computer Science 2023-10-04 Hasan Nasrallah , Mustafa Shukor , Ali J. Ghandour

Ground segmentation of point clouds remains challenging because of the sparse and unordered data structure. This paper proposes the GSECnet - Ground Segmentation network for Edge Computing, an efficient ground segmentation framework of…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Dong He , Jie Cheng , Jong-Hwan Kim

Cloud segmentation amounts to separating cloud pixels from non-cloud pixels in an image. Current deep learning methods for cloud segmentation suffer from three issues. (a) Constrain on their receptive field due to the fixed size of the…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Yijie Li , Hewei Wang , Jinfeng Xu , Puzhen Wu , Yunzhong Xiao , Shaofan Wang , Soumyabrata Dev

Accurate medical image segmentation is essential for diagnosis and treatment planning of diseases. Convolutional Neural Networks (CNNs) have achieved state-of-the-art performance for automatic medical image segmentation. However, they are…

Image and Video Processing · Electrical Eng. & Systems 2020-11-05 Ran Gu , Guotai Wang , Tao Song , Rui Huang , Michael Aertsen , Jan Deprest , Sébastien Ourselin , Tom Vercauteren , Shaoting Zhang

We present SLNet, a lightweight backbone for 3D point cloud recognition designed to achieve strong performance without the computational cost of many recent attention, graph, and deep MLP based models. The model is built on two simple…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Mohammad Saeid , Amir Salarpour , Pedram MohajerAnsari , Mert D. Pesé

Two factors have proven to be very important to the performance of semantic segmentation models: global context and multi-level semantics. However, generating features that capture both factors always leads to high computational complexity,…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Qi Song , Kangfu Mei , Rui Huang

Image retrieval-based cross-view geo-localization (IRCVGL) aims to match images captured from significantly different viewpoints, such as satellite and street-level images. Existing methods predominantly rely on learning robust global…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Xianwei Cao , Dou Quan , Shuang Wang , Ning Huyan , Wei Wang , Yunan Li , Licheng Jiao

We present AEGIS-Net, a novel indoor place recognition model that takes in RGB point clouds and generates global place descriptors by aggregating lower-level color, geometry features and higher-level implicit semantic features. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 Yuhang Ming , Jian Ma , Xingrui Yang , Weichen Dai , Yong Peng , Wanzeng Kong