Underwater distance ranging implemented through a stereo vision system

Date of Publication

11-2014

Document Type

Master's Thesis

Degree Name

Master of Science in Electronics and Communications Engineering

Subject Categories

Electrical and Computer Engineering

College

Gokongwei College of Engineering

Department/Unit

Electronics and Communications Engineering

Thesis Adviser

Edwin Sybingco

Defense Panel Chair

Carlo Ochotorena

Defense Panel Member

Elmer P. Dadios
Elmer Magsino

Abstract/Summary

The goal of this paper is to implement an underwater distance ranging system using a stereo vision system. Target tracking is based on the color of the targets. The ranging algorithm was designed so that it can range targets up to 2 meters away with a minimum accuracy of 90%. An algorithm for ranging above ground and underwater was implemented and the two were compared. Algorithms were setup using samples from an aquarium, pool and beach. It was found that the algorithm may be setup more accurately using samples from a wider range of distances. Different colors of lighting was used to illuminate a target to see which wavelength best lights up the environment underwater on its own. It was found that wavelengths above the visible range could be ruled out. Camera performance was measured under varying conditions of salinity. It was found that the camera used performed worse for salt water in general as the videos it recorded became blurred with increase in salinity.

Abstract Format

html

Language

English

Format

Electronic

Accession Number

CDTG005761

Shelf Location

Archives, The Learning Commons, 12F Henry Sy, Sr. Hall

Keywords

Sonar; Robot vision; Underwater cameras

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Embargo Period

8-8-2023

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