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Machine vision for robotic manufacturing systems
Vávra, Daniel ; Bradáč, František (referee) ; Vetiška, Jan (advisor)
This master thesis focuses on creation of program in TwinCAT Vision environment for contour vertices detection on specified object using a camera. Teoretical part focuses on state of the art in the field of machine vision, including hardware components and introduction to image processing. Practical part deals with the program creation, including real assembly of the testing workplace with the camera. This thesis also deals with the robot guidance for object handling, therefore an example of gripper concept for specified object handling is designed. At the end of the practical part the created program is tested. Testing results are part of the digital attachment of this thesis.
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Easter eggs scanning module
Pitrun, Tomáš ; Janáková, Ilona (referee) ; Honec, Peter (advisor)
This master thesis deals with the design and implementation of a preparation for scanning the museum's collection of Easter eggs. A monochrome line scan camera combined with RGB lighting and stepper motor is used to capture the Easter eggs. The control of the whole fixture is solved by using an Arduino Mega microcontroller in combination with the developed PCB. The data from the camera are processed in software on a PC using Matlab. Finally, a 3D model of the easter egg with the scanned texture is created using the Processing library.
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Product quality control
Pitrun, Tomáš ; Janáková, Ilona (referee) ; Boštík, Ondřej (advisor)
The bachelor’s thesis deals with the industrial inspection of defects on injection molding based on computer recognition. Part of the work is a description of injection molding technology and defects that may occur with this technology. The detection application is implemented in Python on the Raspberry Pi platform. The OpenCV library is used to detect product defects. Part of the work is also the selection of suitable hardware resources, including the Raspberry Pi microcomputer, lighting camera module, lens, relay modules and supporting structure.
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Machine vision for locating objects
Hasík, Dávid ; Huzlík, Rostislav (referee) ; Vetiška, Jan (advisor)
The bachelor’s thesis deals with design of machine vision system for object localization and its application possibilities. Design approach, its components and their individual advantages and disadvantages for this type of machine vision system are described. This thesis also includes simple model of machine vision system for object localization using regular PC. For image processing is used Vision Assistant and its tools. Two scripts are made in this software and their performance is compared.
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Modification of Targeting Camera for a Remote Laser Spectroscopy
Klempa, Tomáš ; Ficza, Ildikó (referee) ; Brada, Michal (advisor)
The bachelor thesis deals with the modification of targeting camera for remote laser spectroscopy. Targeting camera will be used on remote laser spectroscopy unit to study its features in laboratory of Institute of Physical Engineering on University of Mechanical Engineering Brno and to study the affect of external environment to analytic ability. The thesis contains a brief overview of the current stage of knowledge, designs of stroctural variations and the description of parts of designed device.
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3D Photo Slideshow Using OpenGL
Dokoupil, Martin ; Fapšo, Michal (referee) ; Seeman, Michal (advisor)
This document describes implementation of photo slideshow editor. This editor can be used to create dynamic sequences from taken photos. Image taken by camera is projected onto three-dimensional sphere and drawn to screen. Then it is posible to rotate and zoom camera over image. Visual output of this editor makes moving over image more real. If panoramic image is used, user is able to free look around. This document describes method which can translate two-dimensional coordinates to three-dimensional space. Shows how to use transformations for moving camera and methods to implement camera zoom. Contains description of user interface and also mentions extensions that were implemented in editor.
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Camera calibration
Opravil, Jan ; Babinec, Tomáš (referee) ; Richter, Miloslav (advisor)
Imperfection of some lenses used in industrial cameras is distracting. This thesis is concerned with the calibration of cameras with geometric barrel or cushiontype distortion. In the calibrating process is used a function which approximates real lens distortion. To calculate the coefficients of this function the straight line sections in the distorted image are used. Those detected lines play the key role and they ought to have the greatest possible information bias. To enhance the quality of detection are chosen some methods of preprocessing. The algorithms thus created are tested first on an artificially generated calibers and later on real ones. The program is written in C and is using some of the functions of the OpenCV library.
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Procedurally Generated Lens Flare Effect for Blender
Volf, Petr ; Milet, Tomáš (referee) ; Chlubna, Tomáš (advisor)
Lens flare is an image artefact caused by unintended reflection of light in camera's lens system. The goal of this project is simulation of this phenomena in open source 3D content creation suite Blender. The generated effect is then composited into final image. The project is designed as an add-on. The add-on allows user to customize several parameters to achieve the desired result.
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Industrial digital cameras
Palát, David ; Kovář, Jiří (referee) ; Houška, Pavel (advisor)
This reasearch introduces reader of base parts of digital camera. This body of work investigates functions and characteristics of these parts. Shows benefits and handicaps concrete technologies. The main koncept is to achieve a full comparison of the different kinds of used technologies.
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Lens Distortion Correction
Doležel, Michal ; Seeman, Michal (referee) ; Šiler, Ondřej (advisor)
The bachelor thesis deals with methods of removing digital photographies aberrations caused by photographical lens distortions. It describes the most frequent lens aberrations, deals with their causes, followed by consequences of these aberrations on destination pictures and ways of their removing from digital photographies. The main goal of the thesis is to design and implement tools for removing lens distortions aberrations from a digital photography. The application was created in C++ programming language with the support of Cimg and Imagemagick libraries. The application was also developed and tested for MS Windows XP and Linux Kubuntu 7.10 operation systems. The results are compared with professional tools for digital photography processing.
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