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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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Optical measurement system
Opravil, Jan ; Horák, Karel (referee) ; Richter, Miloslav (advisor)
This diploma thesis deals with the creation and testing of optical measurement system. There are basic parts of computer vision. Some ways of image preprocessing and templates matching are discussed. Everything is directed to a particular practical task. Selected methods for templates matching are the Correlation Method, the Classical and Hybrid Hausdorff Distance, Radial and Circular Sampling Space. These methods are programmed in C++ and they are compared with function for searching templates from specific library.
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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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| |
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Optical measurement system
Opravil, Jan ; Horák, Karel (referee) ; Richter, Miloslav (advisor)
This diploma thesis deals with the creation and testing of optical measurement system. There are basic parts of computer vision. Some ways of image preprocessing and templates matching are discussed. Everything is directed to a particular practical task. Selected methods for templates matching are the Correlation Method, the Classical and Hybrid Hausdorff Distance, Radial and Circular Sampling Space. These methods are programmed in C++ and they are compared with function for searching templates from specific library.
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