DSpace Collection:https://hdl.handle.net/10216/68122026-08-06T02:05:41Z2026-08-06T02:05:41ZRobotization of the N25 Notching Press Machinehttps://hdl.handle.net/10216/1760732026-08-06T01:50:26Z2026-07-24T00:00:00ZTitle: Robotization of the N25 Notching Press Machine2026-07-24T00:00:00ZDevelopment of an Active Winding Cassette for Automated Acoustic Foam Insertion Inside Tyreshttps://hdl.handle.net/10216/1760712026-08-06T01:50:04Z2026-07-20T00:00:00ZTitle: Development of an Active Winding Cassette for Automated Acoustic Foam Insertion Inside Tyres2026-07-20T00:00:00ZSCOPF - Security-Constrained Optimal Power Flowhttps://hdl.handle.net/10216/1760692026-08-06T01:49:38Z2026-07-21T00:00:00ZTitle: SCOPF - Security-Constrained Optimal Power Flow2026-07-21T00:00:00ZTransformation of Contact Center Operations: Using Data and AI to Improve Customer Experiencehttps://hdl.handle.net/10216/1760682026-08-06T01:49:27Z2026-07-17T00:00:00ZTitle: Transformation of Contact Center Operations: Using Data and AI to Improve Customer Experience2026-07-17T00:00:00ZEnhancing a Simulation Framework for Tire Manufacturing Systemshttps://hdl.handle.net/10216/1760672026-08-06T01:49:15Z2026-07-29T00:00:00ZTitle: Enhancing a Simulation Framework for Tire Manufacturing Systems2026-07-29T00:00:00ZReal-time dispatching in manufacturing using machine-learning modelshttps://hdl.handle.net/10216/1760662026-08-06T01:49:04Z2026-07-17T00:00:00ZTitle: Real-time dispatching in manufacturing using machine-learning models2026-07-17T00:00:00ZGrocery product label analysis for supporting visually impaired consumershttps://hdl.handle.net/10216/1760652026-08-06T01:48:53Z2026-07-17T00:00:00ZTitle: Grocery product label analysis for supporting visually impaired consumers2026-07-17T00:00:00ZMachine Learning-based energy management for a hybrid Solar-Grid-Redox Flow Battery Systemhttps://hdl.handle.net/10216/1760642026-08-06T01:48:41Z2026-07-20T00:00:00ZTitle: Machine Learning-based energy management for a hybrid Solar-Grid-Redox Flow Battery System2026-07-20T00:00:00ZUnsupervised Image Anomaly Detection and Localization in Industrial Textile Inspectionhttps://hdl.handle.net/10216/1760632026-08-06T01:48:30Z2026-07-23T00:00:00ZTitle: Unsupervised Image Anomaly Detection and Localization in Industrial Textile Inspection
Abstract: Image anomaly localisation in texture patterns is a key challenge in industrial inspection, particularly in textile manufacturing scenarios. Recent unsupervised learning methods report strong performance on widely adopted benchmarks such as MVTec AD. However, it remains unclear to what extent these methods generalise across different texture distributions, anomaly types, and pattern structures commonly found in real-world industrial environments.
This work investigates the current state of the art in unsupervised image anomaly detection and localisation, with a particular focus on texture-based inspection. It reviews existing model families, datasets, evaluation metrics, and development frameworks while providing a structured overview of the evolution of the field.
The experimental component presents a comparative study of several unsupervised anomaly localisation methods applied to textile-oriented industrial scenarios. The evaluation compares these methods across multiple textile anomaly datasets, analysing their behaviour under different texture patterns and data distributions. The study also examines the influence of texture-related inductive biases and evaluates the suitability of the methods for deployment in real industrial production-line environments.
Description: A localização de anomalias em padrões de textura constitui um desafio fundamental na inspeção industrial, particularmente em contextos de fabrico têxtil. Métodos recentes de aprendizagem não supervisionada têm demonstrado um desempenho elevado em benchmarks amplamente utilizados, como o MVTec AD. No entanto, permanece por esclarecer até que ponto estes métodos conseguem generalizar para diferentes distribuições de textura, tipos de anomalias e estruturas de padrões frequentemente encontrados em ambientes industriais reais.
Este trabalho investiga o estado da arte da deteção e localização não supervisionada de anomalias em imagens, com especial enfoque na inspeção baseada em texturas. Para tal, apresenta uma revisão das principais famílias de modelos, datasets, métricas de avaliação e frameworks de desenvolvimento, fornecendo simultaneamente uma perspetiva estruturada sobre a evolução desta área de investigação.
A componente experimental consiste num estudo comparativo de vários métodos de localização não supervisionada de anomalias aplicados a cenários industriais orientados para o setor têxtil. A avaliação compara estes métodos em múltiplos datasets de anomalias têxteis, analisando o seu comportamento perante diferentes padrões de textura e distribuições de dados. O estudo examina ainda a influência de vieses indutivos orientados para a textura e avalia a adequação dos métodos à sua implementação em ambientes industriais reais, nomeadamente em linhas de produção.2026-07-23T00:00:00ZImproving Transport Efficiency through Route Optimization in the Flour Milling Industryhttps://hdl.handle.net/10216/1760622026-08-06T01:48:16Z2026-07-21T00:00:00ZTitle: Improving Transport Efficiency through Route Optimization in the Flour Milling Industry2026-07-21T00:00:00ZRobust Device Identification based on behavioral, biometrical and hardware fingerprintinghttps://hdl.handle.net/10216/1760612026-08-06T01:48:05Z2026-07-17T00:00:00ZTitle: Robust Device Identification based on behavioral, biometrical and hardware fingerprinting2026-07-17T00:00:00ZRouting in dynamic meshes of autonomous agentshttps://hdl.handle.net/10216/1760602026-08-06T01:47:54Z2026-07-17T00:00:00ZTitle: Routing in dynamic meshes of autonomous agents2026-07-17T00:00:00ZRemanufacturing processes simulation enhancement with integration of Human-Robotics simulation modelhttps://hdl.handle.net/10216/1760592026-08-06T01:47:41Z2026-07-17T00:00:00ZTitle: Remanufacturing processes simulation enhancement with integration of Human-Robotics simulation model2026-07-17T00:00:00ZDesign of a Software Tool and Methodology for Benchmarking a Fleet Coordination Systemhttps://hdl.handle.net/10216/1760582026-08-06T01:47:30Z2026-07-17T00:00:00ZTitle: Design of a Software Tool and Methodology for Benchmarking a Fleet Coordination System2026-07-17T00:00:00ZCriação de valor através do Design orientado para a produção em projetos de energia a gás renovável: o caso do biometanohttps://hdl.handle.net/10216/1760572026-08-06T01:47:19Z2026-07-24T00:00:00ZTitle: Criação de valor através do Design orientado para a produção em projetos de energia a gás renovável: o caso do biometano2026-07-24T00:00:00ZDesign and Functional Verification of a PLC-Based Motion Control System for the Translational Axis of a Single-Mast Stacker Cranehttps://hdl.handle.net/10216/1760552026-08-06T01:46:56Z2026-07-24T00:00:00ZTitle: Design and Functional Verification of a PLC-Based Motion Control System for the Translational Axis of a Single-Mast Stacker Crane2026-07-24T00:00:00ZAdvances in Sidestream Digestate Treatment: Nutrient and Micropollutant Removalhttps://hdl.handle.net/10216/1760542026-08-06T01:46:45Z2026-07-13T00:00:00ZTitle: Advances in Sidestream Digestate Treatment: Nutrient and Micropollutant Removal2026-07-13T00:00:00ZDesign and Implementation of Communication Architectures for IT/OT Integration Based on Industrial Protocols and AAShttps://hdl.handle.net/10216/1760532026-08-06T01:46:33Z2026-07-20T00:00:00ZTitle: Design and Implementation of Communication Architectures for IT/OT Integration Based on Industrial Protocols and AAS2026-07-20T00:00:00ZThermal and Tribological Bahaviour of Standard and Hybrid Polymer-Metal Gears: Model Development and Experimental Methodologyhttps://hdl.handle.net/10216/1760522026-08-06T01:46:10Z2026-07-29T00:00:00ZTitle: Thermal and Tribological Bahaviour of Standard and Hybrid Polymer-Metal Gears: Model Development and Experimental Methodology2026-07-29T00:00:00ZIntegrated simulation of production systems in the context of a bio- and regenerative-based industrial value chainhttps://hdl.handle.net/10216/1760512026-08-06T01:45:58Z2026-07-21T00:00:00ZTitle: Integrated simulation of production systems in the context of a bio- and regenerative-based industrial value chain2026-07-21T00:00:00Z