Autonomous Reflectance Transformation Imaging by a Team of Unmanned Aerial Vehicles

A Reflectance Transformation Imaging technique (RTI) realized by multi-rotor Unmanned Aerial Vehicles (UAVs) with a focus on deployment in difficult to access buildings is presented in this letter. RTI is a computational photographic method that captures a surface shape and color of a subject and en...

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Published inIEEE robotics and automation letters Vol. 5; no. 2; pp. 2301 - 2308
Main Authors Kratky, Vit, Petracek, Pavel, Spurny, Vojtech, Saska, Martin
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 01.04.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
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ISSN2377-3766
2377-3766
DOI10.1109/LRA.2020.2970646

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Abstract A Reflectance Transformation Imaging technique (RTI) realized by multi-rotor Unmanned Aerial Vehicles (UAVs) with a focus on deployment in difficult to access buildings is presented in this letter. RTI is a computational photographic method that captures a surface shape and color of a subject and enables its interactive re-lighting from any direction in a software viewer, revealing details that are not visible with the naked eye. The input of RTI is a set of images captured by a static camera, each one under illumination from a different known direction. We present an innovative approach applying two multi-rotor UAVs to perform this scanning procedure in locations that are hardly accessible or even inaccessible for people. The proposed system is designed for its safe deployment within real-world scenarios in historical buildings with priceless historical value.
AbstractList A Reflectance Transformation Imaging technique (RTI) realized by multi-rotor Unmanned Aerial Vehicles (UAVs) with a focus on deployment in difficult to access buildings is presented in this letter. RTI is a computational photographic method that captures a surface shape and color of a subject and enables its interactive re-lighting from any direction in a software viewer, revealing details that are not visible with the naked eye. The input of RTI is a set of images captured by a static camera, each one under illumination from a different known direction. We present an innovative approach applying two multi-rotor UAVs to perform this scanning procedure in locations that are hardly accessible or even inaccessible for people. The proposed system is designed for its safe deployment within real-world scenarios in historical buildings with priceless historical value.
Author Kratky, Vit
Spurny, Vojtech
Saska, Martin
Petracek, Pavel
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SubjectTerms Aerial systems: applications
Cooperating robots
Historical buildings
Illumination
Multi-robot systems
Reflectance
Unmanned aerial vehicles
Title Autonomous Reflectance Transformation Imaging by a Team of Unmanned Aerial Vehicles
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