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Terrestrial laser scanning technology provides an efficient and accuracy solution for acquiring three-dimensional information of plants. The leaf-wood classification of plant point cloud data is a fundamental step for some forestry and…

计算机视觉与模式识别 · 计算机科学 2020-12-08 Zichu Liu , Qing Zhang , Pei Wang , Yaxin Li , Jingqian Sun

Wood-leaf classification is an essential and fundamental prerequisite in the analysis and estimation of forest attributes from terrestrial laser scanning (TLS) point clouds,including critical measurements such as diameter at breast…

计算机视觉与模式识别 · 计算机科学 2024-05-30 Hanlong Li , Pei Wang , Yuhan Wu , Jing Ren , Yuhang Gao , Lingyun Zhang , Mingtai Zhang , Wenxin Chen

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,…

计算机视觉与模式识别 · 计算机科学 2020-01-31 Xiuxian Xu , Pei Wang , Xiaozheng Gan , Yaxin Li , Li Zhang , Qing Zhang , Mei Zhou , Yinghui Zhao , Xinwei Li

Accurate tree detection is of growing importance in applications such as urban planning, forest inventory, and environmental monitoring. In this article, we present an approach to creating tree maps by annotating them in 3D point clouds.…

信息检索 · 计算机科学 2023-08-29 Michael Kölle , Volker Walter , Ivan Shiller , Uwe Soergel

The accurate classification of plant organs is a key step in monitoring the growing status and physiology of plants. A classification method was proposed to classify the leaves and stems of potted plants automatically based on the point…

计算机视觉与模式识别 · 计算机科学 2020-03-02 Zichu Liu , Qing Zhang , Pei Wang , Zhen Li , Huiru Wang

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…

计算机视觉与模式识别 · 计算机科学 2025-09-05 Josafat-Mattias Burmeister , Andreas Tockner , Stefan Reder , Markus Engel , Rico Richter , Jan-Peter Mund , Jürgen Döllner

Point clouds from Terrestrial Laser Scanning (TLS) are an increasingly popular source of data for studying plant structure and function but typically require extensive manual processing to extract ecologically important information. One key…

计算机视觉与模式识别 · 计算机科学 2025-03-07 Harry J. F. Owen , Matthew J. A. Allen , Stuart W. D. Grieve , Phill Wilkes , Emily R. Lines

Airborne laser scanning (LiDAR) point clouds over large forested areas can be processed to segment individual trees and subsequently extract tree-level information. Existing segmentation procedures typically detect more than 90% of…

计算机视觉与模式识别 · 计算机科学 2017-08-04 Hamid Hamraz , Marco A. Contreras , Jun Zhang

Laser-scanned point clouds of forests make it possible to extract valuable information for forest management. To consider single trees, a forest point cloud needs to be segmented into individual tree point clouds. Existing segmentation…

计算机视觉与模式识别 · 计算机科学 2025-01-07 Jonathan Henrich , Jan van Delden , Dominik Seidel , Thomas Kneib , Alexander Ecker

Tree skeleton plays an important role in tree structure analysis, forest inventory and ecosystem monitoring. However, it is a challenge to extract a skeleton from a tree point cloud with complex branches. In this paper, an automatic and…

计算机视觉与模式识别 · 计算机科学 2021-10-19 Jingqian Sun , Pei Wang , Ronghao Li , Mei Zhou

LiDAR provides highly accurate 3D point clouds. However, data needs to be manually labelled in order to provide subsequent useful information. Manual annotation of such data is time consuming, tedious and error prone, and hence in this…

计算机视觉与模式识别 · 计算机科学 2020-06-11 Ananya Gupta , Jonathan Byrne , David Moloney , Simon Watson , Hujun Yin

Point clouds captured with laser scanning systems from forest environments can be utilized in a wide variety of applications within forestry and plant ecology, such as the estimation of tree stem attributes, leaf angle distribution, and…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Lassi Ruoppa , Oona Oinonen , Josef Taher , Matti Lehtomäki , Narges Takhtkeshha , Antero Kukko , Harri Kaartinen , Juha Hyyppä

Terrestrial laser scanning (TLS) is the standard technique used to create accurate point clouds for digital forest inventories. However, the measurement process is demanding, requiring up to two days per hectare for data collection,…

Digitisation of fruit trees using LiDAR enables analysis which can be used to better growing practices to improve yield. Sophisticated analysis requires geometric and semantic understanding of the data, including the ability to discern…

计算机视觉与模式识别 · 计算机科学 2021-02-03 Fredrik Westling , Dr James Underwood , Dr Mitch Bryson

In recent years, terrestrial laser scanning technology has been widely used to collect tree point cloud data, aiding in measurements of diameter at breast height, biomass, and other forestry survey data. Since a single scan from terrestrial…

计算机视觉与模式识别 · 计算机科学 2024-11-21 Jing Ren , Pei Wang , Hanlong Li , Yuhan Wu , Yuhang Gao , Wenxin Chen , Mingtai Zhang , Lingyun Zhang

Reliable large-scale data on the state of forests is crucial for monitoring ecosystem health, carbon stock, and the impact of climate change. Current knowledge of tree species distribution relies heavily on manual data collection in the…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Hongjin Lin , Matthew Nazari , Derek Zheng

Tree instance segmentation of airborne laser scanning (ALS) data is of utmost importance for forest monitoring, but remains challenging due to variations in the data caused by factors such as sensor resolution, vegetation state at…

计算机视觉与模式识别 · 计算机科学 2025-08-22 Swann Emilien Céleste Destouches , Jesse Lahaye , Laurent Valentin Jospin , Jan Skaloud

This paper proposes a multi-spectral random forest classifier with suitable feature selection and masking for tree cover estimation in urban areas. The key feature of the proposed classifier is filtering out the built-up region using…

计算机视觉与模式识别 · 计算机科学 2023-06-12 Usman Nazir , Momin Uppal , Muhammad Tahir , Zubair Khalid
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