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Deep Neural Networks for Defect Detection
Juřica, Tomáš ; Herout, Adam (referee) ; Hradiš, Michal (advisor)
The goal of this work is to bring automatic defect detection to the manufacturing process of plastic cards. A card is considered defective when it is contaminated with a dust particle or a hair. The main challenges I am facing to accomplish this task are a very few training data samples (214 images), small area of target defects in context of an entire card (average defect area is 0.0068 \% of the card) and also very complex background the detection task is performed on. In order to accomplish the task, I decided to use Mask R-CNN detection algorithm combined with augmentation techniques such as synthetic dataset generation. I trained the model on the synthetic dataset consisting of 20 000 images. This way I was able to create a model performing 0.83 AP at 0.1 IoU on the original data test set.
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Statistical Analysis of Real Process Scrap
Širjovová, Zuzana ; Karpíšek, Zdeněk (referee) ; Bednář, Josef (advisor)
Quality, as well as stability of processes check is nowadays gaining on its significance. The main driving force of its increasing importance is the rapid expansion of series production. Large-scale manufacturing processes are concerned, in terms of the number of operators, direct and indirect influence on rejects, but also on process stability. There are several quality characteristics, defined by utility properties, that can be easily measurable (linear dimensions, solidity, elongation, humidity, concentration) or directly immeasurable, mostly subjective (fragrance, taste, color, comfort while using, appearance). Statistical Process Control-SPC features the preventive tool of quality control, because based on the early detection of significant divergences of the process from the predetermined level, it is possible to execute interventions in the process with the aim of maintaining the acceptable and stable level and improving the process. This manufacturing process check will be the topic of my thesis. At first, Shewhart's control charts analysis will be done to determine strong process instability. Consequently, analysis will be carried out in test chi-square, used to determine the influence of each factor on the process of stability (operators, type of shift, type of product, type of defect on the product). All the practical part will be processed in statistical software MINITAB15. The thesis will be complemented by the findings from the examination of the features of interval estimates of parameter p for binomial distribution - numeric stability in the various statistical software (specifically Minitab 15, Statistica, Matlab 7.8.0). Master's thesis was supported by project from MSMT of the Czech Republic no. 1M06047 Center for Quality and Reliability of Production.
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Necessity of quality management
Pavlíček, Michal ; Kružík, Michal (referee) ; Fiala, Alois (advisor)
Task of the thesis is to develop a literature search on the topic: „Necessity of quality management“. The paper defines the concept of quality and quality control. These are basic concepts for this extensive and still very dynamically developing field. I tried to create objektive look on these questions and in the end think about necessity or uselessness of quality management systems.
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Office building in Trencin - construction technology project
Panáček, Jakub ; Řihák, Pavel (referee) ; Biely, Boris (advisor)
The subject of my dissertation is to describe construction technology project of the administration building in Trencin. I focused on the budget, work schedule, environmental protection, appropriate setup of temporary objects on the construction site and efficient machine assembly. Result of work represents possible construction progression with focus on site condistions.
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Research institute Olomouc - gross substructure
Kondáš, Ondřej ; Nečasová, Barbora (referee) ; Biely, Boris (advisor)
The aim of this bachelor thesis is the construction-technological solutions of gross substructure Research institute in Olomouc, which is based on large diameter piles. Part of the thesis is the organization of construction and design of the building site, technological regulations of selected works, quality control and solving transport relations including oversized cargo. It also deals with the design of mechanical assemblies, health and safety and safety of environment. It all with respect financial and time demands.
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Machine vision for the check of moldings
Grepl, Pavel ; Pavlík, Jan (referee) ; Vetiška, Jan (advisor)
Bachelor's thesis deals with the design of arrangement of an automatic inspection unit for specified products using machine vision. The theoretical part is focused on specification of the inspection system and research in the area of machine vision components, such as cameras, lens and illumination. The practical part consists of multiple possible arrangements of the inspection unit. Solutions of the chosen arrangements, including programming and testing the application using Vision Assistant software. Finally, economic evaluation of the automation of the quality inspection using machine vision has been made.
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Residential Building in Humpolec – Execution of Superstructure
Januška, Marek ; Nečasová, Barbora (referee) ; Liška, Pavel (advisor)
The goal of this bachelor thesis is the processing of the building-technological project for Implementation os Superstructure of Residetial building in Humpolec. For the realization of the stage was elaborated a technological note for proces of vertical and forizontal carrying construction. Horizontal elements are made of masonry system Porotherm and concrete columns. Horizontal floors are made of concrete. Thesis also contains budget, time schedule, machine assembly, organization of construction proces. In traffic part, roads was planned from the suppliers to the place of construction.
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Vizualization of Outputs from Speech Technologies for Contact Centers
Zhezhela, Oleksandr ; Szőke, Igor (referee) ; Schwarz, Petr (advisor)
The thesis is aimed on visualisation of data mined by speech processing technologies. Some methods speech data extraction were studied and technologies for this task were analysed. The variety of meta data that can be mined from speech was defined. Were also examined existing standards and processes of call centres. Some requirements for the user interface were gathered and analysed. On that basis and after communication with call centre employees there was defined and implemented a concept for speech data visualization. Gained solutions were integrated into Speech Analytics Server (SPAS).
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Price, quality and risk of providing facility management services
Hladišová, Marika ; Vázlerová, Marcela (referee) ; Tichá, Alena (advisor)
This thesis focuses on prices, quality & risks of the Facility management. In the theoretical part there are explained points referring to the Facility management, it’s contributions, ways of securing them, important fields and it’s targets. Also individual levels of cooperation and the job description of the management. There is also a mention of an important standardization, of which the Facility management couldn’t function without. Also the example of service contract and lastly, a very important chapter is dedicated to the quality of work provision and Facility management services. The practical part of this thesis is the case study based on a questionnaire of how to support services of the two different subjects, hotels and construction companies. The case study also describes the cost of these services, ways of controlling the quality provided and contracts with appointed workers. The result of this thesis is a detailed description of potential risks which can appear in the individual type of services. There is a suggested optimization for all the risks mentioned.
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