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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Spausdintinio montažo plokščių surinkimo kokybės įvertinimas kompiuterine rega / Evaluation of Assembling Quality of Printed Circuit Boards Using Computer Vision

Zemblys, Raimondas 29 September 2008 (has links)
Elektronikos gamybos rinkoje produkcijos kokybei užtikrinti buvo pasikliaujama žmogaus vizualia apžiūra ir elektroniniais testais. Pasirodžius personaliniams kompiuteriams, gamybos pramonėje pradėta naudoti „kompiuterinė rega”. Procesas, kuriame naudojamas optinis vaizdo sensorius, pvz.: kamera, apibūdinamas kaip automatinė optinė kontrolė – AOK (angl. Automated Optical Inspection - AOI). Darbo tikslas - sukurti spausdintinio montažo plokščių kokybės įvertinimo sistemą panaudojant kompiuterinę regą, išrinkti spausdintinio montažo plokščių kokybės įvertinimui efektyviausius vaizdo apdorojimo algoritmus ir jų parametrus bei įvertinti jų efektyvumą. Taip pat nagrinėjama aplinkos veiksnių (apšvietimo, naudojamos techninės įrangos ir kt.) įtaka sistemos darbo efektyvumui. / Historically the electronics manufacturing market has relied on a combination of human visual inspection and electrical test methods to ensure product quality. With the advent of the personal computer, the use of "machine vision" in industrial applications gradually became more common. Process where optical sensors (i.e., cameras) are used to make specific pass/fail decisions is usually described as Automated Optical Inspection or AOI. There are discussed problems of designing AOI system in this paper. Main goal is to select most efficient image analysis algorithm and to study other parameters that have impact for designing reliable AOI system.
2

Automatická optická inspekce / Automatic Optical Inspection

Vápeník, Radovan January 2009 (has links)
This work deals with the technical possibilities for automated optical inspection and the arrangements for monitoring the implementation of established elements. There are used methods of detection elements, including advanced algorithm processing. With the described methods was created program and each method was tested. The aim was on the clear description of the problem, the optimal design and processing program with objective results with the lowest number of false detection.

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