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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…

Computer Vision and Pattern Recognition · Computer Science 2020-03-02 Zichu Liu , Qing Zhang , Pei Wang , Zhen Li , Huiru Wang

Terrestrial laser scanning (TLS) can obtain tree point cloud with high precision and high density. Efficient classification of wood points and leaf points is essential to study tree structural parameters and ecological characteristics. By…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Jingqian Sun , Pei Wang , Zhiyong Gao , Zichu Liu , Yaxin Li , Xiaozheng Gan

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

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.…

Information Retrieval · Computer Science 2023-08-29 Michael Kölle , Volker Walter , Ivan Shiller , Uwe Soergel

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…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Jonathan Henrich , Jan van Delden , Dominik Seidel , Thomas Kneib , Alexander Ecker

Making sense of the physical world has always been at the core of mapping. Up until recently, this has always dependent on using the human eye. Using airborne lasers, it has become possible to quickly "see" more of the world in many more…

Computational Engineering, Finance, and Science · Computer Science 2015-04-14 Christoph Waldhauser , Ronald Hochreiter , Johannes Otepka , Norbert Pfeifer , Sajid Ghuffar , Karolina Korzeniowska , Gerald Wagner

Prior work on plant species classification predominantly focuses on building models from isolated plant attributes. Hence, there is a need for tools that can assist in species identification in the natural world. We present a novel and…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Dewald Homan , Johan A. du Preez

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…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Hanlong Li , Pei Wang , Yuhan Wu , Jing Ren , Yuhang Gao , Lingyun Zhang , Mingtai Zhang , Wenxin Chen

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…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Jing Ren , Pei Wang , Hanlong Li , Yuhan Wu , Yuhang Gao , Wenxin Chen , Mingtai Zhang , Lingyun Zhang

Automatic classification of trees using remotely sensed data has been a dream of many scientists and land use managers. Recently, Unmanned aerial vehicles (UAV) has been expected to be an easy-to-use, cost-effective tool for remote sensing…

Computer Vision and Pattern Recognition · Computer Science 2018-04-30 Masanori Onishi , Takeshi Ise

Registering point clouds of forest environments is an essential prerequisite for LiDAR applications in precision forestry. State-of-the-art methods for forest point cloud registration require the extraction of individual tree attributes,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Xufei Wang , Zexin Yang , Xiaojun Cheng , Jantien Stoter , Wenbing Xu , Zhenlun Wu , Liangliang Nan

In this paper, we employ Probabilistic Neural Network (PNN) with image and data processing techniques to implement a general purpose automated leaf recognition algorithm. 12 leaf features are extracted and orthogonalized into 5 principal…

Artificial Intelligence · Computer Science 2007-07-31 Stephen Gang Wu , Forrest Sheng Bao , Eric You Xu , Yu-Xuan Wang , Yi-Fan Chang , Qiao-Liang Xiang

Clever sampling methods can be used to improve the handling of big data and increase its usefulness. The subject of this study is remote sensing, specifically airborne laser scanning point clouds representing different classes of ground…

Machine Learning · Statistics 2014-09-17 Ronald Hochreiter , Christoph Waldhauser

Automated segmentation of individual leaves of a plant in an image is a prerequisite to measure more complex phenotypic traits in high-throughput phenotyping. Applying state-of-the-art machine learning approaches to tackle leaf instance…

Computer Vision and Pattern Recognition · Computer Science 2019-03-25 Daniel Ward , Peyman Moghadam , Nicolas Hudson

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

Contemporary robots in precision agriculture focus primarily on automated harvesting or remote sensing to monitor crop health. Comparatively less work has been performed with respect to collecting physical leaf samples in the field and…

Robotics · Computer Science 2022-08-11 Merrick Campbell , Amel Dechemi , Konstantinos Karydis

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…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Hongjin Lin , Matthew Nazari , Derek Zheng

The purpose of this study was to investigate the use of deep learning for coniferous/deciduous classification of individual trees from airborne LiDAR data. To enable efficient processing by a deep convolutional neural network (CNN), we…

Machine Learning · Computer Science 2018-02-27 Hamid Hamraz , Nathan B. Jacobs , Marco A. Contreras , Chase H. Clark

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…

Computer Vision and Pattern Recognition · Computer Science 2025-03-07 Harry J. F. Owen , Matthew J. A. Allen , Stuart W. D. Grieve , Phill Wilkes , Emily R. Lines

The leaf area index determines crop health and growth. Traditional methods for calculating it are time-consuming, destructive, costly, and limited to a scale. In this study, we automate the index estimation method using drone image data of…

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