IMAGE QUALITY IMPROVEMENTS IN LOW-COST UNDERWATER PHOTOGRAMMETRY

This study presents an evaluation of a cheap consumer-grade camera used for modelling a coral reef section. We evaluate the quality of a reconstructed coral reef using GoPro cameras and a high-end camera with data from an actual coral reef dataset. We also investigate components of the processing pi...

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Main Authors: Neyer, F., Nocerino, E., Gruen, A.
Format: Conference Proceeding
Language:English
Subjects:
Bundle adjustment
Cameras
Coral reefs
Image quality
Photogrammetry
Submarine pipelines
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Nocerino, E.
Gruen, A.
description This study presents an evaluation of a cheap consumer-grade camera used for modelling a coral reef section. We evaluate the quality of a reconstructed coral reef using GoPro cameras and a high-end camera with data from an actual coral reef dataset. We also investigate components of the processing pipeline (like image quality) separate from the final results. Because our GoPro images suffer from severe chromatic aberration, we apply different image pre-processing steps to improve their quality and show its effects on the reconstructed object points. Bundle adjustment is carried out as free networks in all cases, with a follow-up rigid 3D Helmert transformation onto a geodetic control network, carried out to define the common datum and to remove the bias from the free network results.
doi_str_mv 10.5194/isprs-archives-XLII-2-W10-135-2019
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source Access via ProQuest (Open Access); Free E-Journal (出版社公開部分のみ）
subjects Bundle adjustment
Cameras
Coral reefs
Image quality
Photogrammetry
Submarine pipelines
title IMAGE QUALITY IMPROVEMENTS IN LOW-COST UNDERWATER PHOTOGRAMMETRY
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