Naslov
Projector Calibration in a Two-Layer Flat Refractive Geometry for Underwater Imaging

Autori
Zoraja, Domagoj ; Petković, Tomislav ; Pribanić, Tomislav ; Forest, Josep

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of MIPRO 2022 45th Jubilee International Convention on Information, Communication and Electronic Technology / Skala, Karolj - Opatija : Hrvatska udruga za informacijsku i komunikacijsku tehnologiju, elektroniku i mikroelektroniku - MIPRO, 2022, 1069-1074

Skup
45th International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO 2022)

Mjesto i datum
Opatija, Hrvatska, 23.05.2022. - 27.05.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
projector calibration ; flat refractive geometry ; underwater imaging ; camera calibration

Sažetak
In underwater imaging we observe objects in the water through a flat glass interface which defines a two-layer flat refractive geometry. Using structured light for underwater 3D imaging requires that both camera and projector are calibrated, which is a difficult task. In this paper we discuss how to calibrate a projector for underwater imaging under a two-layer flat refractive geometry. We propose to model the projector as an inverse camera which enables the use of known procedures for camera calibration in flat refractive geometry. We discuss how to efficiently collect the calibration data using only a planar calibration board and an uncalibrated camera. Performed experiments show that the results of projector calibration are comparable to the results of camera calibration making it highly applicable in practice.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

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