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Counting objects in images is a pattern recognition problem that focuses on identifying an element to determine its incidence and is approached in the literature as Visual Object Counting (VOC). In this work, we propose a methodology to…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 João V. C. Mazzochin , Gustavo Tiecker , Erick O. Rodrigues

Wood logs picking is a challenging task to automate. Indeed, logs usually come in cluttered configurations, randomly orientated and overlapping. Recent work on log picking automation usually assume that the logs' pose is known, with little…

Computer Vision and Pattern Recognition · Computer Science 2022-10-20 Jean-Michel Fortin , Olivier Gamache , Vincent Grondin , François Pomerleau , Philippe Giguère

The quality of a wood log in the wood industry depends heavily on the presence of both outer and inner defects, including inner knots that are a result of the growth of tree branches. Today, locating the inner knots require the use of…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Salim Khazem , Jeremy Fix , Cédric Pradalier

Vision-based segmentation in forested environments is a key functionality for autonomous forestry operations such as tree felling and forwarding. Deep learning algorithms demonstrate promising results to perform visual tasks such as object…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Vincent Grondin , François Pomerleau , Philippe Giguère

Humans use UAVs to monitor changes in forest environments since they are lightweight and provide a large variety of surveillance data. However, their information does not present enough details for understanding the scene which is needed to…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Bianca-Cerasela-Zelia Blaga , Sergiu Nedevschi

In this work we explore the application of AI to robotic welding. Robotic welding is a widely used technology in many industries, but robots currently do not have the capability to detect welding defects which get introduced due to various…

AI systems produce large volumes of logs as they interact with tools and users. Analysing these logs can help understand model capabilities, propensities, and behaviours, or assess whether an evaluation worked as intended. Researchers have…

Artificial intelligence (AI) techniques for image-based segmentation have garnered much attention in recent years. Convolutional neural networks (CNNs) have shown impressive results and potential towards fully automated segmentation in…

Medical Physics · Physics 2021-11-17 Fereshteh Yousefirizi , Abhinav K. Jha , Julia Brosch-Lenz , Babak Saboury , Arman Rahmim

Knots in wood are critical to both aesthetics and structural integrity, making their detection and pairing essential in timber processing. However, traditional manual annotation was labor-intensive and inefficient, necessitating automation.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-12 Guohao Lin , Shidong Pan , Rasul Khanbayov , Changxi Yang , Ani Khaloian-Sarnaghi , Andriy Kovryga

This study tackles the challenge of precise wood log counting, where applications of the proposed methodology can span from automated approaches for materials management, surveillance, and safety science to wood traffic monitoring, wood…

Computer Vision and Pattern Recognition · Computer Science 2026-05-25 João VC Mazzochin , Giovani Bernardes Vitor , Gustavo Tiecker , Elioenai MF Diniz , Gilson A Oliveira , Marcelo Trentin , Érick O Rodrigues

Image segmentation and classification are the two main fundamental steps in pattern recognition. To perform medical image segmentation or classification with deep learning models, it requires training on large image dataset with annotation.…

Computer Vision and Pattern Recognition · Computer Science 2020-01-17 Anandhanarayanan Kamalakannan , Shiva Shankar Ganesan , Govindaraj Rajamanickam

There is a dire need for medical imaging datasets with accompanying annotations to perform downstream patient analysis. However, it is difficult to manually generate these annotations, due to the time-consuming nature, and the variability…

Image and Video Processing · Electrical Eng. & Systems 2024-06-21 Deepa Krishnaswamy , Vamsi Krishna Thiriveedhi , Cosmin Ciausu , David Clunie , Steve Pieper , Ron Kikinis , Andrey Fedorov

The success of state-of-the-art deep neural networks heavily relies on the presence of large-scale labelled datasets, which are extremely expensive and time-consuming to annotate. This paper focuses on tackling semi-supervised part…

Computer Vision and Pattern Recognition · Computer Science 2022-11-08 Yu Yang , Xiaotian Cheng , Hakan Bilen , Xiangyang Ji

In sawmills, it is essential to accurately measure the raw material, i.e. wooden logs, to optimise the sawing process. Earlier studies have shown that accurate predictions of the inner structure of the logs can be obtained using just…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Fedor Zolotarev , Tuomas Eerola , Tomi Kauppi

Instance segmentation is a computer vision task where separate objects in an image are detected and segmented. State-of-the-art deep neural network models require large amounts of labeled data in order to perform well in this task. Making…

Computer Vision and Pattern Recognition · Computer Science 2022-02-21 Tuomas Sormunen , Arttu Lämsä , Miguel Bordallo Lopez

Purpose AI-based methods for anatomy segmentation can help automate characterization of large imaging datasets. The growing number of similar in functionality models raises the challenge of evaluating them on datasets that do not contain…

One of the problems on the way to successful implementation of neural networks is the quality of annotation. For instance, different annotators can annotate images in a different way and very often their decisions do not match exactly and…

Computer Vision and Pattern Recognition · Computer Science 2018-07-25 Roman Khudorozhkov , Alexander Koryagin , Alexey Kozhevin

We propose a novel, good-quality, and less demanding method for detecting knots on the surface of wooden logs using multimodal data fusion. Knots are a primary factor affecting the quality of sawn timber, making their detection fundamental…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Bořek Reich , Matej Kunda , Fedor Zolotarev , Tuomas Eerola , Pavel Zemčík , Tomi Kauppi

We have developed a methodology for the systematic generation of a large image dataset of macerated wood references, which we used to generate image data for nine hardwood genera. This is the basis for a substantial approach to automate,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Lars Nieradzik , Jördis Sieburg-Rockel , Stephanie Helmling , Janis Keuper , Thomas Weibel , Andrea Olbrich , Henrike Stephani

Although AI drafting tools have gained prominence in patent writing, the systematic evaluation of AI-generated patent content quality represents a significant research gap. To address this gap, We propose to evaluate patents using…

Information Retrieval · Computer Science 2025-10-31 Yuqian Chai , Chaochao Wang , Weilei Wang
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