THE EFFECT OF UNDERWATER IMAGERY RADIOMETRY ON 3D RECONSTRUCTION AND ORTHOIMAGERY
The work presented in this paper investigates the effect of the radiometry of the underwater imagery on automating the 3D reconstruction and the produced orthoimagery. Main aim is to investigate whether pre-processing of the underwater imagery improves the 3D reconstruction using automated SfM - MVS...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2017-02-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W3/25/2017/isprs-archives-XLII-2-W3-25-2017.pdf |
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| author | P. Agrafiotis G. I. Drakonakis A. Georgopoulos D. Skarlatos |
| author_facet | P. Agrafiotis G. I. Drakonakis A. Georgopoulos D. Skarlatos |
| author_sort | P. Agrafiotis |
| collection | DOAJ |
| description | The work presented in this paper investigates the effect of the radiometry of the underwater imagery on automating the 3D
reconstruction and the produced orthoimagery. Main aim is to investigate whether pre-processing of the underwater imagery
improves the 3D reconstruction using automated SfM - MVS software or not. Since the processing of images either separately or in
batch is a time-consuming procedure, it is critical to determine the necessity of implementing colour correction and enhancement
before the SfM - MVS procedure or directly to the final orthoimage when the orthoimagery is the deliverable. Two different test sites
were used to capture imagery ensuring different environmental conditions, depth and complexity. Three different image correction
methods are applied: A very simple automated method using Adobe Photoshop, a developed colour correction algorithm using the
CLAHE (Zuiderveld, 1994) method and an implementation of the algorithm described in Bianco et al., (2015). The produced point
clouds using the initial and the corrected imagery are then being compared and evaluated. |
| first_indexed | 2024-04-13T08:43:12Z |
| format | Article |
| id | doaj.art-4d3ae268ece24ee7b88fc0ed353e9bab |
| institution | Directory Open Access Journal |
| issn | 1682-1750 2194-9034 |
| language | English |
| last_indexed | 2024-04-13T08:43:12Z |
| publishDate | 2017-02-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| spelling | doaj.art-4d3ae268ece24ee7b88fc0ed353e9bab2022-12-22T02:53:49ZengCopernicus PublicationsThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences1682-17502194-90342017-02-01XLII-2/W3253110.5194/isprs-archives-XLII-2-W3-25-2017THE EFFECT OF UNDERWATER IMAGERY RADIOMETRY ON 3D RECONSTRUCTION AND ORTHOIMAGERYP. Agrafiotis0G. I. Drakonakis1A. Georgopoulos2D. Skarlatos3National Technical University of Athens, School of Rural and Surveying Engineering, Lab. of Photogrammetry Zografou Campus, 9 Heroon Polytechniou str., 15780, Zografou, Athens, GreeceNational Technical University of Athens, School of Rural and Surveying Engineering, Lab. of Photogrammetry Zografou Campus, 9 Heroon Polytechniou str., 15780, Zografou, Athens, GreeceNational Technical University of Athens, School of Rural and Surveying Engineering, Lab. of Photogrammetry Zografou Campus, 9 Heroon Polytechniou str., 15780, Zografou, Athens, GreeceCyprus University of Technology, Civil Engineering and Geomatics Dept., Lab of Photogrammetric Vision 2-8 Saripolou str., 3036, Limassol, CyprusThe work presented in this paper investigates the effect of the radiometry of the underwater imagery on automating the 3D reconstruction and the produced orthoimagery. Main aim is to investigate whether pre-processing of the underwater imagery improves the 3D reconstruction using automated SfM - MVS software or not. Since the processing of images either separately or in batch is a time-consuming procedure, it is critical to determine the necessity of implementing colour correction and enhancement before the SfM - MVS procedure or directly to the final orthoimage when the orthoimagery is the deliverable. Two different test sites were used to capture imagery ensuring different environmental conditions, depth and complexity. Three different image correction methods are applied: A very simple automated method using Adobe Photoshop, a developed colour correction algorithm using the CLAHE (Zuiderveld, 1994) method and an implementation of the algorithm described in Bianco et al., (2015). The produced point clouds using the initial and the corrected imagery are then being compared and evaluated.http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W3/25/2017/isprs-archives-XLII-2-W3-25-2017.pdf |
| spellingShingle | P. Agrafiotis G. I. Drakonakis A. Georgopoulos D. Skarlatos THE EFFECT OF UNDERWATER IMAGERY RADIOMETRY ON 3D RECONSTRUCTION AND ORTHOIMAGERY The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| title | THE EFFECT OF UNDERWATER IMAGERY RADIOMETRY ON 3D
RECONSTRUCTION AND ORTHOIMAGERY |
| title_full | THE EFFECT OF UNDERWATER IMAGERY RADIOMETRY ON 3D
RECONSTRUCTION AND ORTHOIMAGERY |
| title_fullStr | THE EFFECT OF UNDERWATER IMAGERY RADIOMETRY ON 3D
RECONSTRUCTION AND ORTHOIMAGERY |
| title_full_unstemmed | THE EFFECT OF UNDERWATER IMAGERY RADIOMETRY ON 3D
RECONSTRUCTION AND ORTHOIMAGERY |
| title_short | THE EFFECT OF UNDERWATER IMAGERY RADIOMETRY ON 3D
RECONSTRUCTION AND ORTHOIMAGERY |
| title_sort | effect of underwater imagery radiometry on 3d reconstruction and orthoimagery |
| url | http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W3/25/2017/isprs-archives-XLII-2-W3-25-2017.pdf |
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