Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
3D Reconstruction of Underwater Scenes from Uncalibrated Video Sequences
Date
2009-01-01
Author
Kirli, Yavuz
Ulusoy, İlkay
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
175
views
2
downloads
Cite This
Underwater is a complex structured environment because of inhomogeneous light absorption and light scattering by the environment. These factors make 3D reconstruction in underwater more challenging. In the literature, only calibrated cameras and predefined camera motions are allowed for 3D reconstruction. In this study, 3D representation of underwater scenes are reconstructed from uncalibrated video sequences.3D reconstruction consists Of the following stages: Image enhancement, feature defection and matching, fundamental matrix estimation, auto-calibration, recovery of extrinsic parameters, rectification, stereo matching and dense reconstruction. In this paper, various algorithms are implemented for each stage and the best performing ones for underwater applications are defined. As a result, a single camera based automatic 3D modelling system, which is reads, to be used in underwater applications, is developed.
Subject Keywords
Layout
,
Video sequences
,
Image reconstruction
URI
https://hdl.handle.net/11511/95204
DOI
https://doi.org/10.1109/siu.2009.5136343
Conference Name
IEEE 17th Signal Processing and Communications Applications Conference
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar
Suggestions
OpenMETU
Core
Physical control of the spatial and temporal diversity of microbial mats at a shallow water hydrothermal vent
Giovannelli, Donato; Foustoukos, Dionysis; Le Bris, Nadine; Sievert, Stefan; Yücel, Mustafa; Dalessandro, Valerio; Ricci, Renato; Vetriani, Costantino (null; 2016-07-01)
Shallow-water hydrothermal vents are ubiquitous but poorly studied geothermal environments. The active hydrothermal emissions of the Milos hydrothermal system support complex microbial mats, which are fundamental in engineering the environmental niche in which extremophiles thrive. Because of the shallow depth, the mat community is wiped out during every major storm, when swell and wave action increase, and then it reconstitutes itself over a brief period of time (days). Here we report the results of a join...
Neural network prediction of tsunami parameters in the aegean and Marmara Seas
Erdurmaz, Muammer Sercan; Ergin, Ayşin; Department of Civil Engineering (2004)
Tsunamis are characterized as shallow water waves, with long periods and wavelengths. They occur by a sudden water volume displacement. Earthquake is one of the main reasons of a tsunami development. Historical data for an observation period of 3500 years starting from 1500 B.C. indicates that approximately 100 tsunamis occurred in the seas neighboring Turkey. Historical earthquake and tsunami data were collected and used to develop two artificial neural network models to forecast tsunami characteristics fo...
Geographic patterns of elemental deposition in the Aegean region of Turkey indicated by the lichen, Xanthoria parietina (L.) Th. Fr.
Yenisoy-Karakas, S; Tuncel, Süleyman Gürdal (2004-08-15)
Lichen samples from different parts of the world have been known to accumulate elements to a greater degree than higher plants, if they are exposed to these elements from the atmosphere or from water and sediments. It has been hypothesized that lichens can be used to monitor air pollution around point and area emission sources. Local variation (variation in substrate, age and morphology of lichen samples) of element concentrations would not be large enough to affect the concentration patterns in large areas...
BIOLOGICAL APPLICATIONS OF TERAHERTZ TIME-DOMAIN ATTENUATED TOTAL REFLECTION SPECTROSCOPY
Gelgeç, Melis; Altan, Hakan; Department of Physics (2022-8-25)
In this thesis, a Terahertz Attenuated Total Reflection Time Domain Spectroscopy (THz ATR-TDS) system was constructed to measure biological media. The constructed system driven by a Yb:doped mode-locked fiber laser had a limited bandwidth of about 0.3 THz. This bandwidth limited the analysis of various samples in the frequency domain. To overcome this limitation a method was developed so that the samples can be analyzed in the time-domain. Oral soft tissue samples collected were used in order to demonstrate...
Trace metal composition of particulate matter in the water column and sediments of the Black Sea and regional rivers
Yiğiterhan, Oğuz; Yemenicioğlu, Semal; Department of Chemical Oceanography (2005)
The Black Sea, with its oxic, suboxic and anoxic layers, provides a unique environment for studying how biological and geochemical processes affect the composition of particulate matter. The elemental composition of particles in the Black Sea is controlled by their origin and sources. Particles from rivers are dominated by aluminosilicate material that has compositions similar to the earth̕s crust. In general this material is relatively unreactive. Biological processes in the upper oxic and suboxic layers o...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
Y. Kirli and İ. Ulusoy, “3D Reconstruction of Underwater Scenes from Uncalibrated Video Sequences,” presented at the IEEE 17th Signal Processing and Communications Applications Conference, Antalya, Türkiye, 2009, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/95204.