NDLI: Development of image sonar simulator for underwater object recognition

Content Provider	IEEE Xplore Digital Library
Author	Jeong-Hwe Gu Han-Gil Joe Son-Cheol Yu
Copyright Year	2013
Description	Author affiliation: Dept. of Creative IT Eng., POSTECH, Pohang, South Korea (Jeong-Hwe Gu; Son-Cheol Yu) \|\| Ocean Sci. & Technol. Inst., POSTECH, Pohang, South Korea (Han-Gil Joe)
Abstract	In this paper, two preliminary basic studies of underwater recognition are reported: modeling an image sonar and developing its simulator. The display mechanism of the image sonar is analyzed, and an image sonar model is proposed. The image sonar emits ultrasound beams in the forward direction and then detects those that strike objects and are reflected from their surfaces. The ultrasound beams are modeled as a set of rays, and the image sonar is modeled as an object emitting the rays at a certain position and orientation. The surface of the objects to be observed is modeled as consisting of many small polygons so that any arbitrary shape can be represented by these polygons. Collisions between the ultrasound beams and objects are described in terms of the points at which the rays intersect the polygons. On the basis of the model, a simulator for the image sonar is developed. The sonar images made by the simulator are compared with real sonar images to confirm the validity of the model.
Sponsorship	IEEE Oceanic Eng. Soc.
Starting Page	1
Ending Page	6
File Size	3045613
Page Count	6
File Format	PDF
ISBN	9780933957404
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-09-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	MTS
Subject Keyword	Ultrasonic imaging Mathematical model Optical imaging Optical reflection Sonar measurements Vectors simulation image sonar modeling recognition
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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