Thesis (Selection of subject)Thesis (Selection of subject)(version: 393)
Thesis details
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A Calibrated Real-World Colour Picker for Augmented Reality Applications
Thesis title in Czech: Kalibrovaný výběr skutečných barev pro aplikace v rozšířené realitě
Thesis title in English: A Calibrated Real-World Colour Picker for Augmented Reality Applications
Key words: měření barev a odrazivosti, rozšířená realita
English key words: colour and reflectance measurements, augmented reality
Academic year of topic announcement: 2017/2018
Thesis type: diploma thesis
Thesis language: angličtina
Department: Department of Software and Computer Science Education (32-KSVI)
Supervisor: prof. Dr. techn. Alexander Wilkie
Author: hidden - assigned and confirmed by the Study Dept.
Date of registration: 10.11.2017
Date of assignment: 10.11.2017
Confirmed by Study dept. on: 31.01.2018
Date and time of defence: 05.09.2019 09:00
Date of electronic submission:19.07.2019
Date of submission of printed version:19.07.2019
Date of proceeded defence: 05.09.2019
Opponents: doc. RNDr. Elena Šikudová, Ph.D.
 
 
 
Guidelines
Goal of the thesis is to develop an estimation technique for diffuse surface reflectance via an augmented reality user interface on mobile devices. Specifically, the goal is to not only obtain colour coordinates for the area of interest, but to make an educated guess which real-world spectral reflectance in a large database of paint samples best matches the surface in question. There are three cornerstones to the technique: first, the device camera will be calibrated at each measurement location via a colour chart, to properly estimate ambient illumination. Second, a database of measured spectral reflectances will be used as a ground truth to compare colour estimates against: and third, if ambient light levels permit, the light source of the mobile device (and possibly also other external light sources of known spectral emissivity) will be used to obtain a measurement under a second illumination. The third step serves to further disambiguate similar spectral responses, and to raise the accuracy of the results. The planned system will be integrated into an existing mobile library application that permits browsing of the existing spectral database, and that already allows finding of similar colours under varying illuminants.
References
A Field Guide to Digital Color
Maureen Stone
 
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