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We propose a new supervized learning framework for oversegmenting 3D point clouds into superpoints. We cast this problem as learning deep embeddings of the local geometry and radiometry of 3D points, such that the border of objects presents…

Computer Vision and Pattern Recognition · Computer Science 2019-04-04 Loic Landrieu , Mohamed Boussaha

Efficient transmission of 3D point cloud data is critical for advanced perception in centralized and decentralized multi-agent robotic systems, especially nowadays with the growing reliance on edge and cloud-based processing. However, the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Nikolaos Stathoulopoulos , Christoforos Kanellakis , George Nikolakopoulos

3D point cloud semantic segmentation aims to group all points into different semantic categories, which benefits important applications such as point cloud scene reconstruction and understanding. Existing supervised point cloud semantic…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Canyu Zhang , Zhenyao Wu , Xinyi Wu , Ziyu Zhao , Song Wang

Rigorous crop counting is crucial for effective agricultural management and informed intervention strategies. However, in outdoor field environments, partial occlusions combined with inherent ambiguity in distinguishing clustered crops from…

Computer Vision and Pattern Recognition · Computer Science 2026-01-05 Md Ahmed Al Muzaddid , William J. Beksi

Sky/cloud images obtained from ground-based sky-cameras are usually captured using a fish-eye lens with a wide field of view. However, the sky exhibits a large dynamic range in terms of luminance, more than a conventional camera can…

Computer Vision and Pattern Recognition · Computer Science 2018-03-06 Soumyabrata Dev , Florian M. Savoy , Yee Hui Lee , Stefan Winkler

The analyses relying on 3D point clouds are an utterly complex task, often involving million of points, but also requiring computationally efficient algorithms because of many real-time applications; e.g. autonomous vehicle. However, point…

Computer Vision and Pattern Recognition · Computer Science 2019-06-11 Can Chen , Luca Zanotti Fragonara , Antonios Tsourdos

The performance of 3D object detection models over point clouds highly depends on their capability of modeling local geometric patterns. Conventional point-based models exploit local patterns through a symmetric function (e.g. max pooling)…

Computer Vision and Pattern Recognition · Computer Science 2020-07-07 Jianan Li , Jiashi Feng

We study the problem of efficient semantic segmentation of large-scale 3D point clouds. By relying on expensive sampling techniques or computationally heavy pre/post-processing steps, most existing approaches are only able to be trained and…

Computer Vision and Pattern Recognition · Computer Science 2021-07-07 Qingyong Hu , Bo Yang , Linhai Xie , Stefano Rosa , Yulan Guo , Zhihua Wang , Niki Trigoni , Andrew Markham

In this paper we present a novel slanted-plane MRF model which reasons jointly about occlusion boundaries as well as depth. We formulate the problem as the one of inference in a hybrid MRF composed of both continuous (i.e., slanted 3D…

Computer Vision and Pattern Recognition · Computer Science 2012-04-09 Koichiro Yamaguchi , Tamir Hazan , David McAllester , Raquel Urtasun

One popular approach to interactively segment the foreground object of interest from an image is to annotate a bounding box that covers the foreground object. Then, a binary labeling is performed to achieve a refined segmentation. One major…

Computer Vision and Pattern Recognition · Computer Science 2015-11-24 Hongkai Yu , Youjie Zhou , Hui Qian , Min Xian , Yuewei Lin , Dazhou Guo , Kang Zheng , Kareem Abdelfatah , Song Wang

This paper addresses the challenge of 3D instance segmentation by simultaneously leveraging 3D geometric and multi-view image information. Many previous works have applied deep learning techniques to 3D point clouds for instance…

Computer Vision and Pattern Recognition · Computer Science 2024-08-05 Haoyu Guo , He Zhu , Sida Peng , Yuang Wang , Yujun Shen , Ruizhen Hu , Xiaowei Zhou

Nowadays, there are many approaches to acquire three-dimensional (3D) point clouds of maize plants. However, automatic stem-leaf segmentation of maize shoots from three-dimensional (3D) point clouds remains challenging, especially for new…

Computer Vision and Pattern Recognition · Computer Science 2020-09-08 Chao Zhu , Teng Miao , Tongyu Xu , Tao Yang , Na Li

This paper presents a novel architecture for point cloud road user detection, which is based on a classical point cloud proposal generator approach, that utilizes simple geometrical rules. New methods are coupled with this technique to…

Robotics · Computer Science 2024-01-04 Alvari Seppänen , Eerik Alamikkotervo , Risto Ojala , Giacomo Dario , Kari Tammi

This paper presents a framework to address the challenges involved in building point cloud cleaning, plane detection, and semantic segmentation, with the ultimate goal of enhancing building modeling. We focus in the cleaning stage on…

Computer Vision and Pattern Recognition · Computer Science 2025-02-20 Ilyass Abouelaziz , Youssef Mourchid

In this article, a novel approach for merging 3D point cloud maps in the context of egocentric multi-robot exploration is presented. Unlike traditional methods, the proposed approach leverages state-of-the-art place recognition and learned…

Semantic segmentation of LiDAR point clouds is an important task in autonomous driving. However, training deep models via conventional supervised methods requires large datasets which are costly to label. It is critical to have…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Minghua Liu , Yin Zhou , Charles R. Qi , Boqing Gong , Hao Su , Dragomir Anguelov

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

Although extensive research has been conducted on 3D point cloud segmentation, effectively adapting generic models to novel categories remains a formidable challenge. This paper proposes a novel approach to improve point cloud few-shot…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Zhenhua Ning , Zhuotao Tian , Guangming Lu , Wenjie Pei

As bone and air produce weak signals with conventional MR sequences, segmentation of these tissues particularly difficult in MRI. We propose to integrate patch-based anatomical signatures and an auto-context model into a machine learning…

The perception of moving objects is crucial for autonomous robots performing collision avoidance in dynamic environments. LiDARs and cameras tremendously enhance scene interpretation but do not provide direct motion information and face…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Matthias Zeller , Vardeep S. Sandhu , Benedikt Mersch , Jens Behley , Michael Heidingsfeld , Cyrill Stachniss