Epipolar geometry of opti-acoustic stereo imaging

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Optical and acoustic cameras are suitable imaging systems to inspect underwater structures, both in regular maintenance and security operations. Despite high resolution, optical systems have limited visibility range when deployed in turbid waters. In contrast, the new generation of high-frequency (MHz) acoustic cameras can provide images with enhanced target details in highly turbid waters, though their range is reduced by one to two orders of magnitude compared to traditional low-/mid-frequency (10's-100's KHz) sonar systems. It is conceivable that an effective inspection strategy is the deployment of both optical and acoustic cameras on a submersible platform, to enable target imaging in a range of turbidity conditions. Under this scenario and where visibility allows, registration of the images from both cameras- arranged in binocular stereo configuration- provides valuable scene information that cannot be readily recovered from each sensor alone. In deriving the mathematical equations for 3-D scene reconstruction, we address the epipolar constraint and stereo triangulation for these two imaging modalities with different projection geometries. We further show that optiacoustic stereo imaging can lend advantages over traditional binocular vision with optical cameras.

Original languageEnglish
Title of host publicationOceans 2005 - Europe
Pages407-412
Number of pages6
Volume1
DOIs
StatePublished - Dec 1 2005
EventOceans 2005 - Europe - Brest, France
Duration: Jun 20 2005Jun 23 2005

Other

OtherOceans 2005 - Europe
CountryFrance
CityBrest
Period6/20/056/23/05

Fingerprint

Acoustics
Cameras
Imaging techniques
Geometry
Visibility
Underwater structures
Binocular vision
Binoculars
Sonar
Turbidity
Triangulation
Optical systems
Imaging systems
Water
Inspection
Sensors

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Epipolar geometry of opti-acoustic stereo imaging. / Negahdaripour, Shahriar.

Oceans 2005 - Europe. Vol. 1 2005. p. 407-412 1511749.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Negahdaripour, S 2005, Epipolar geometry of opti-acoustic stereo imaging. in Oceans 2005 - Europe. vol. 1, 1511749, pp. 407-412, Oceans 2005 - Europe, Brest, France, 6/20/05. https://doi.org/10.1109/OCEANSE.2005.1511749
Negahdaripour, Shahriar. / Epipolar geometry of opti-acoustic stereo imaging. Oceans 2005 - Europe. Vol. 1 2005. pp. 407-412
@inproceedings{0f5e6b2fa3aa4fcf9cfa7a96c4825322,
title = "Epipolar geometry of opti-acoustic stereo imaging",
abstract = "Optical and acoustic cameras are suitable imaging systems to inspect underwater structures, both in regular maintenance and security operations. Despite high resolution, optical systems have limited visibility range when deployed in turbid waters. In contrast, the new generation of high-frequency (MHz) acoustic cameras can provide images with enhanced target details in highly turbid waters, though their range is reduced by one to two orders of magnitude compared to traditional low-/mid-frequency (10's-100's KHz) sonar systems. It is conceivable that an effective inspection strategy is the deployment of both optical and acoustic cameras on a submersible platform, to enable target imaging in a range of turbidity conditions. Under this scenario and where visibility allows, registration of the images from both cameras- arranged in binocular stereo configuration- provides valuable scene information that cannot be readily recovered from each sensor alone. In deriving the mathematical equations for 3-D scene reconstruction, we address the epipolar constraint and stereo triangulation for these two imaging modalities with different projection geometries. We further show that optiacoustic stereo imaging can lend advantages over traditional binocular vision with optical cameras.",
author = "Shahriar Negahdaripour",
year = "2005",
month = "12",
day = "1",
doi = "10.1109/OCEANSE.2005.1511749",
language = "English",
isbn = "0780391039",
volume = "1",
pages = "407--412",
booktitle = "Oceans 2005 - Europe",

}

TY - GEN

T1 - Epipolar geometry of opti-acoustic stereo imaging

AU - Negahdaripour, Shahriar

PY - 2005/12/1

Y1 - 2005/12/1

N2 - Optical and acoustic cameras are suitable imaging systems to inspect underwater structures, both in regular maintenance and security operations. Despite high resolution, optical systems have limited visibility range when deployed in turbid waters. In contrast, the new generation of high-frequency (MHz) acoustic cameras can provide images with enhanced target details in highly turbid waters, though their range is reduced by one to two orders of magnitude compared to traditional low-/mid-frequency (10's-100's KHz) sonar systems. It is conceivable that an effective inspection strategy is the deployment of both optical and acoustic cameras on a submersible platform, to enable target imaging in a range of turbidity conditions. Under this scenario and where visibility allows, registration of the images from both cameras- arranged in binocular stereo configuration- provides valuable scene information that cannot be readily recovered from each sensor alone. In deriving the mathematical equations for 3-D scene reconstruction, we address the epipolar constraint and stereo triangulation for these two imaging modalities with different projection geometries. We further show that optiacoustic stereo imaging can lend advantages over traditional binocular vision with optical cameras.

AB - Optical and acoustic cameras are suitable imaging systems to inspect underwater structures, both in regular maintenance and security operations. Despite high resolution, optical systems have limited visibility range when deployed in turbid waters. In contrast, the new generation of high-frequency (MHz) acoustic cameras can provide images with enhanced target details in highly turbid waters, though their range is reduced by one to two orders of magnitude compared to traditional low-/mid-frequency (10's-100's KHz) sonar systems. It is conceivable that an effective inspection strategy is the deployment of both optical and acoustic cameras on a submersible platform, to enable target imaging in a range of turbidity conditions. Under this scenario and where visibility allows, registration of the images from both cameras- arranged in binocular stereo configuration- provides valuable scene information that cannot be readily recovered from each sensor alone. In deriving the mathematical equations for 3-D scene reconstruction, we address the epipolar constraint and stereo triangulation for these two imaging modalities with different projection geometries. We further show that optiacoustic stereo imaging can lend advantages over traditional binocular vision with optical cameras.

UR - http://www.scopus.com/inward/record.url?scp=33746776769&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33746776769&partnerID=8YFLogxK

U2 - 10.1109/OCEANSE.2005.1511749

DO - 10.1109/OCEANSE.2005.1511749

M3 - Conference contribution

SN - 0780391039

SN - 9780780391031

VL - 1

SP - 407

EP - 412

BT - Oceans 2005 - Europe

ER -