On-the-Go Tree Detection and Geometric Traits Estimation with Ground Mobile Robots in Fruit Tree Groves
Dimitrios Chatziparaschis, Hanzhe Teng, Yipeng Wang, Pamodya Peiris,, Elia Scudiero, and Konstantinos Karydis

TL;DR
This paper introduces a real-time, on-the-go method for detecting trees and estimating their geometric traits in fruit groves using ground robots, combining NDVI and LiDAR data with advanced data fusion techniques.
Contribution
It presents a novel multi-modal landmark association and estimation framework that operates in real-time on mobile robots for precision agriculture.
Findings
Accurately detects trees and estimates width and height in real-time
Validated through realistic simulations and field experiments
Operates efficiently with onboard computational resources
Abstract
By-tree information gathering is an essential task in precision agriculture achieved by ground mobile sensors, but it can be time- and labor-intensive. In this paper we present an algorithmic framework to perform real-time and on-the-go detection of trees and key geometric characteristics (namely, width and height) with wheeled mobile robots in the field. Our method is based on the fusion of 2D domain-specific data (normalized difference vegetation index [NDVI] acquired via a red-green-near-infrared [RGN] camera) and 3D LiDAR point clouds, via a customized tree landmark association and parameter estimation algorithm. The proposed system features a multi-modal and entropy-based landmark correspondences approach, integrated into an underlying Kalman filter system to recognize the surrounding trees and jointly estimate their spatial and vegetation-based characteristics. Realistic simulated…
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Taxonomy
TopicsRemote Sensing and LiDAR Applications · Forest Biomass Utilization and Management · Land Use and Ecosystem Services
