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To enable robotic weed control, we develop algorithms to detect nutsedge weed from bermudagrass turf. Due to the similarity between the weed and the background turf, manual data labeling is expensive and error-prone. Consequently, directly…

Computer Vision and Pattern Recognition · Computer Science 2021-06-17 Shuangyu Xie , Chengsong Hu , Muthukumar Bagavathiannan , Dezhen Song

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…

Computer Vision and Pattern Recognition · Computer Science 2023-06-12 Usman Nazir , Momin Uppal , Muhammad Tahir , Zubair Khalid

Fruit tree pruning and fruit thinning require a powerful vision system that can provide high resolution segmentation of the fruit trees and their branches. However, recent works only consider the dormant season, where there are minimal…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Zijue Chen , David Ting , Rhys Newbury , Chao Chen

Deep neural networks may perform poorly when training datasets are heavily class-imbalanced. Recently, two-stage methods decouple representation learning and classifier learning to improve performance. But there is still the vital issue of…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Zhisheng Zhong , Jiequan Cui , Shu Liu , Jiaya Jia

This work presents a method for semantic segmentation of mango trees in high resolution aerial imagery, and, a novel method for individual crown detection of mango trees using segmentation output. Mango Tree Net, a fully convolutional…

Computer Vision and Pattern Recognition · Computer Science 2019-07-17 Vikas Agaradahalli Gurumurthy , Ramesh Kestur , Omkar Narasipura

Drones are increasingly used in forestry to capture high-resolution remote sensing data, supporting enhanced monitoring, assessment, and decision-making processes. While operations above the forest canopy are already highly automated,…

National Forest Inventory serves as the primary source of forest information, however, maintaining these inventories requires labor-intensive on-site campaigns by forestry experts to identify and document tree species. Embeddings from deep…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Takayuki Ishikawa , Carmelo Bonannella , Bas J. W. Lerink , Marc Rußwurm

Graph-based deep learning on LiDAR point clouds encodes geometry through edge features, yet standard implementations use the same encoding at every scale. In tree species classification, where point density varies by orders of magnitude…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Said Ohamouddou , Hanaa El Afia , Mohamed Hamza Boulaich , Abdellatif El Afia , Raddouane Chiheb

Embryo fragmentation is a morphological indicator critical for evaluating developmental potential in In Vitro Fertilization (IVF). However, manual grading is subjective and inefficient, while existing deep learning solutions often lack…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Ming-Jhe Lee

Deep learning methods for computer vision tasks show promise for automating the data analysis of camera trap images. Ecological camera traps are a common approach for monitoring an ecosystem's animal population, as they provide continual…

Computer Vision and Pattern Recognition · Computer Science 2018-03-30 Stefan Schneider , Graham W. Taylor , Stefan C. Kremer

Birds are important indicators for monitoring both biodiversity and habitat health; they also play a crucial role in ecosystem management. Decline in bird populations can result in reduced eco-system services, including seed dispersal,…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Carl Chalmers , Paul Fergus , Serge Wich , Steven N Longmore , Naomi Davies Walsh , Philip Stephens , Chris Sutherland , Naomi Matthews , Jens Mudde , Amira Nuseibeh

In this paper, we propose a deep learning framework for the automated counting and geolocation of palm trees from aerial images using convolutional neural networks. For this purpose, we collected aerial images in a palm tree Farm in the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Adel Ammar , Anis Koubaa

Tree defect detection is crucial for the structural health screening of trees. Existing nondestructive testing (NDT) techniques for tree defect detection require time-consuming and labor-intensive measurement campaigns. This discourages…

Signal Processing · Electrical Eng. & Systems 2024-06-11 Jiwei Qian , Yee Hui Lee , Kaixuan Cheng , Qiqi Dai , Mohamed Lokman Mohd Yusof , Daryl Lee , Abdulkadir C. Yucel

Robotic weed control has seen increased research of late with its potential for boosting productivity in agriculture. Majority of works focus on developing robotics for croplands, ignoring the weed management problems facing rangeland stock…

Autonomous aerial navigation in dense natural environments remains challenging due to limited visibility, thin and irregular obstacles, GNSS-denied operation, and frequent perceptual degradation. This work presents an improved deep…

Robotics · Computer Science 2025-12-22 Guglielmo Del Col , Väinö Karjalainen , Teemu Hakala , Yibo Zhang , Eija Honkavaara

Supervised methods for object delineation in remote sensing require labeled ground-truth data. Gathering sufficient high quality ground-truth data is difficult, especially when targets are of irregular shape or difficult to distinguish from…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Dylan Stewart , Alina Zare , Sergio Marconi , Ben G. Weinstein , Ethan P. White , Sarah J. Graves , Stephanie A. Bohlman , Aditya Singh

Accurately quantifying tree cover is an important metric for ecosystem monitoring and for assessing progress in restored sites. Recent works have shown that deep learning-based segmentation algorithms are capable of accurately mapping trees…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Josh Veitch-Michaelis , Andrew Cottam , Daniella Schweizer , Eben N. Broadbent , David Dao , Ce Zhang , Angelica Almeyda Zambrano , Simeon Max

Accurate assessment of urban canopy coverage is crucial for informed urban planning, effective environmental monitoring, and mitigating the impacts of climate change. Traditional practices often face limitations due to inadequate technical…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Anisha Dutta

Aerial image segmentation is the basis for applications such as automatically creating maps or tracking deforestation. In true orthophotos, which are often used in these applications, many objects and regions can be approximated well by…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Daniel Gritzner , Jörn Ostermann

Image classification is a crucial task in modern weed management and crop intervention technologies. However, the limited size, diversity, and balance of existing weed datasets hinder the development of deep learning models for…

Computer Vision and Pattern Recognition · Computer Science 2023-10-20 Alzayat Saleh , Alex Olsen , Jake Wood , Bronson Philippa , Mostafa Rahimi Azghadi