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Shape-Text matching is an important task of high-level shape understanding. Current methods mainly represent a 3D shape as multiple 2D rendered views, which obviously can not be understood well due to the structural ambiguity caused by…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Chuan Tang , Xi Yang , Bojian Wu , Zhizhong Han , Yi Chang

Instance segmentation in point clouds is one of the most fine-grained ways to understand the 3D scene. Due to its close relationship to semantic segmentation, many works approach these two tasks simultaneously and leverage the benefits of…

Computer Vision and Pattern Recognition · Computer Science 2020-03-12 Guangnan Wu , Zhiyi Pan , Peng Jiang , Changhe Tu

We present TreeON, a novel neural-based framework for reconstructing detailed 3D tree point clouds from sparse top-down geodata, using only a single orthophoto and its corresponding Digital Surface Model (DSM). Our method introduces a new…

Graphics · Computer Science 2026-03-12 Angeliki Grammatikaki , Johannes Eschner , Pedro Hermosilla , Oscar Argudo , Manuela Waldner

Surgical scene understanding and multi-tasking learning are crucial for image-guided robotic surgery. Training a real-time robotic system for the detection and segmentation of high-resolution images provides a challenging problem with the…

Computer Vision and Pattern Recognition · Computer Science 2020-10-19 Mobarakol Islam , Vibashan VS , Hongliang Ren

3D point cloud segmentation is an important function that helps robots understand the layout of their surrounding environment and perform tasks such as grasping objects, avoiding obstacles, and finding landmarks. Current segmentation…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Jingdao Chen , Zsolt Kira , Yong K. Cho

We propose a mechanism to reconstruct part annotated 3D point clouds of objects given just a single input image. We demonstrate that jointly training for both reconstruction and segmentation leads to improved performance in both the tasks,…

Computer Vision and Pattern Recognition · Computer Science 2018-10-02 Priyanka Mandikal , Navaneet K L , R. Venkatesh Babu

With the tide of artificial intelligence, we try to apply deep learning to understand 3D data. Point cloud is an important 3D data structure, which can accurately and directly reflect the real world. In this paper, we propose a simple and…

Computer Vision and Pattern Recognition · Computer Science 2019-10-01 Kang Zhiheng , Li Ning

Creating accurate 3D models of tree topology is an important task for tree pruning. The 3D model is used to decide which branches to prune and then to execute the pruning cuts. Previous methods for creating 3D tree models have typically…

Robotics · Computer Science 2024-06-19 Alexander You , Aarushi Mehta , Luke Strohbehn , Jochen Hemming , Cindy Grimm , Joseph R. Davidson

Close-range laser scanning provides detailed 3D captures of forest stands but requires efficient software for processing 3D point cloud data and extracting individual trees. Although recent studies have introduced deep learning methods for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-05 Josafat-Mattias Burmeister , Andreas Tockner , Stefan Reder , Markus Engel , Rico Richter , Jan-Peter Mund , Jürgen Döllner

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

We propose an interactive approach for 3D instance segmentation, where users can iteratively collaborate with a deep learning model to segment objects in a 3D point cloud directly. Current methods for 3D instance segmentation are generally…

Computer Vision and Pattern Recognition · Computer Science 2023-01-24 Theodora Kontogianni , Ekin Celikkan , Siyu Tang , Konrad Schindler

Crop yield estimation is a relevant problem in agriculture, because an accurate yield estimate can support farmers' decisions on harvesting or precision intervention. Robots can help to automate this process. To do so, they need to be able…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Matteo Sodano , Federico Magistri , Elias Marks , Fares Hosn , Aibek Zurbayev , Rodrigo Marcuzzi , Meher V. R. Malladi , Jens Behley , Cyrill Stachniss

Panoptic segmentation is the combination of semantic and instance segmentation: assign the points in a 3D point cloud to semantic categories and partition them into distinct object instances. It has many obvious applications for outdoor…

Computer Vision and Pattern Recognition · Computer Science 2023-07-07 Binbin Xiang , Torben Peters , Theodora Kontogianni , Frawa Vetterli , Stefano Puliti , Rasmus Astrup , Konrad Schindler

Semantic segmentation of aerial point cloud data can be utilised to differentiate which points belong to classes such as ground, buildings, or vegetation. Point clouds generated from aerial sensors mounted to drones or planes can utilise…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Matthew Howe , Boris Repasky , Timothy Payne

Point-cloud data acquired using a terrestrial laser scanner (TLS) play an important role in digital forestry research. Multiple scans are generally used to overcome occlusion effects and obtain complete tree structural information. However,…

Computer Vision and Pattern Recognition · Computer Science 2020-01-31 Xiuxian Xu , Pei Wang , Xiaozheng Gan , Yaxin Li , Li Zhang , Qing Zhang , Mei Zhou , Yinghui Zhao , Xinwei Li

Crops for food, feed, fiber, and fuel are key natural resources for our society. Monitoring plants and measuring their traits is an important task in agriculture often referred to as plant phenotyping. Traditionally, this task is done…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Gianmarco Roggiolani , Federico Magistri , Tiziano Guadagnino , Jens Behley , Cyrill Stachniss

Point clouds analysis has grasped researchers' eyes in recent years, while 3D semantic segmentation remains a problem. Most deep point clouds models directly conduct learning on 3D point clouds, which will suffer from the severe sparsity…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Zhenhong Zou , Yizhe Li

In this case study, we present a data-efficient point cloud segmentation pipeline and training framework for robust segmentation of unimproved roads and seven other classes. Our method employs a two-stage training framework: first, a…

Image and Video Processing · Electrical Eng. & Systems 2025-08-29 Andrew Yarovoi , Christopher R. Valenta

Point cloud registration is a fundamental task in the fields of computer vision and robotics. Recent developments in transformer-based methods have demonstrated enhanced performance in this domain. However, the standard attention mechanism…

Computer Vision and Pattern Recognition · Computer Science 2024-06-26 Meiling Wang , Guangyan Chen , Yi Yang , Li Yuan , Yufeng Yue

Robust imitation learning for robot manipulation requires comprehensive 3D perception, yet many existing methods struggle in cluttered environments. Fixed camera view approaches are vulnerable to perspective changes, and 3D point cloud…

Robotics · Computer Science 2025-07-08 Daqi Huang , Zhehao Cai , Yuzhi Hao , Zechen Li , Chee-Meng Chew