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Vision perception and modelling are the essential tasks of robotic harvesting in the unstructured orchard. This paper develops a framework of visual perception and modelling for robotic harvesting of fruits in the orchard environments. The…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Hanwen Kang , Chao Chen

As technology progresses, smart automated systems will serve an increasingly important role in the agricultural industry. Current existing vision systems for yield estimation face difficulties in occlusion and scalability as they utilize a…

Computer Vision and Pattern Recognition · Computer Science 2023-04-14 Andy Kweon , Vishnu Hu , Jong Yoon Lim , Trevor Gee , Edmond Liu , Henry Williams , Bruce A. MacDonald , Mahla Nejati , Inkyu Sa , Ho Seok Ahn

Segmentation-based autonomous navigation has recently been proposed as a promising methodology to guide robotic platforms through crop rows without requiring precise GPS localization. However, existing methods are limited to scenarios where…

Robotics · Computer Science 2024-02-27 Alessandro Navone , Mauro Martini , Andrea Ostuni , Simone Angarano , Marcello Chiaberge

Homography estimation is the task of determining the transformation from an image pair. Our approach focuses on employing detector-free feature matching methods to address this issue. Previous work has underscored the importance of…

Information Retrieval · Computer Science 2024-10-15 Yuhan Liu , Qianxin Huang , Siqi Hui , Jingwen Fu , Sanping Zhou , Kangyi Wu , Pengna Li , Jinjun Wang

The ability to map challenging subarctic environments opens new horizons for robotic deployments in industries such as forestry, surveillance, and open-pit mining. In this paper, we explore possibilities of large-scale lidar mapping in a…

Physically rearranging objects is an important capability for embodied agents. Visual room rearrangement evaluates an agent's ability to rearrange objects in a room to a desired goal based solely on visual input. We propose a simple yet…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Brandon Trabucco , Gunnar Sigurdsson , Robinson Piramuthu , Gaurav S. Sukhatme , Ruslan Salakhutdinov

Offline Handwritten Mathematical Expression Recognition (HMER) has been dramatically advanced recently by employing tree decoders as part of the encoder-decoder method. Despite the tree decoder-based methods regard the expressions as a tree…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Zihao Lin , Jinrong Li , Fan Yang , Shuangping Huang , Xu Yang , Jianmin Lin , Ming Yang

We introduce an approach for updating older tree inventories with geographic coordinates using street-level panorama images and a global optimization framework for tree instance matching. Geolocations of trees in inventories until the early…

Computer Vision and Pattern Recognition · Computer Science 2020-02-06 Daniel Laumer , Nico Lang , Natalie van Doorn , Oisin Mac Aodha , Pietro Perona , Jan Dirk Wegner

The collection of a high number of pixel-based labeled training samples for tree species identification is time consuming and costly in operational forestry applications. To address this problem, in this paper we investigate the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-20 Steve Ahlswede , Nimisha Thekke-Madam , Christian Schulz , Birgit Kleinschmit , Begüm Demir

Accurate estimation of plant skeletal structure (e.g., branching structure) from images is essential for smart agriculture and plant science. Unlike human skeletons with fixed topology, plant skeleton estimation presents a unique challenge,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Xinpeng Liu , Hiroaki Santo , Yosuke Toda , Fumio Okura

Healthy urban forests comprising of diverse trees and shrubs play a crucial role in mitigating climate change. They provide several key advantages such as providing shade for energy conservation, and intercepting rainfall to reduce flood…

Computer Vision and Pattern Recognition · Computer Science 2025-04-22 Akshit Gupta , Remko Uijlenhoet

We consider drawings of graphs in the plane in which vertices are assigned distinct points in the plane and edges are drawn as simple curves connecting the vertices and such that the edges intersect only at their common endpoints. There is…

Computational Geometry · Computer Science 2022-03-17 Salman Parsa , Tim Ophelders

The size of 3D models used on the web or stored in databases is becoming increasingly high. Then, an efficient method that allows users to find similar 3D objects for a given 3D model query has become necessary. Keywords and the geometry of…

Information Retrieval · Computer Science 2011-11-29 My Abdellah Kassimi , Omar El beqqali

Machine vision is a critical subsystem for enabling robots to be able to perform a variety of tasks in orchard environments. However, orchards are highly visually complex environments, and computer vision algorithms operating in them must…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Alexander You , Cindy Grimm , Joseph R. Davidson

X-ray angiography is widely used in cardiac interventions to visualize coronary vessels, assess integrity, detect stenoses and guide treatment. We propose a framework for reconstructing 3D vessel trees from biplanar X-ray images which are…

Image and Video Processing · Electrical Eng. & Systems 2025-09-18 Ethan Koland , Lin Xi , Nadeev Wijesuriya , YingLiang Ma

This work proposes a multi-task fully convolutional architecture for tree species mapping in dense forests from sparse and scarce polygon-level annotations using hyperspectral UAV-borne data. Our model implements a partial loss function…

Approximate distance estimation can be used to determine fundamental landscape properties including complexity and openness. We show that variations in the skyline of landscape photos can be used to estimate distances to trees on the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-24 Laura Martinez-Sanchez , Daniele Borio , Raphaël d'Andrimont , Marijn van der Velde

Underwater Monocular Depth Estimation (UMDE) is a critical task that aims to estimate high-precision depth maps from underwater degraded images caused by light absorption and scattering effects in marine environments. Recently, Mamba-based…

Computer Vision and Pattern Recognition · Computer Science 2025-07-11 Peixian Zhuang , Yijian Wang , Zhenqi Fu , Hongliang Zhang , Sam Kwong , Chongyi Li

Monitoring forest dynamics at an individual tree scale is essential for accurately assessing ecosystem responses to climate change, yet traditional methods relying on field-based forest inventories are labor-intensive and limited in spatial…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Matthew J. Allen , Harry J. F. Owen , Stuart W. D. Grieve , Emily R. Lines

Ground vehicles equipped with monocular vision systems are a valuable source of high resolution image data for precision agriculture applications in orchards. This paper presents an image processing framework for fruit detection and…

Robotics · Computer Science 2016-10-27 Suchet Bargoti , James Underwood
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