Estimation of camera extrinsic parameters of indoor omni-directional images acquired by a rotating line camera

Sojung Oh, Impyeong Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

To use omni-directional images obtained by a rotating line camera for indoor services, we should know the position and attitude of the camera at the acquisition time to register the images with respect to an indoor coordinate system. In this study, we thus develop a method for the estimation of the extrinsic orientation parameters of an omni-directional image. First, we derive a collinearity equation for the omni-directional image by geometrically modeling the rotating line camera. We then estimate the extrinsic orientation parameters (EOP) through the collinearity equations with indoor control points which are stochastic constraints. The experimental results indicate that the extrinsic orientation parameters are estimated with the precision of ±1.4 mm and ±0.05° for the position and attitude, respectively. The residuals are within ±3.11 and ±9.20 pixels in horizontal and vertical directions. Using the proposed method for estimating EOP of indoor omni-directional images, we can generate sophisticated indoor 3D models and offer precise indoor services to users based on the models.

Original languageEnglish
Title of host publicationAdvances in Visual Computing - 8th International Symposium, ISVC 2012, Revised Selected Papers
Pages616-625
Number of pages10
EditionPART 2
DOIs
StatePublished - 2012
Event8th International Symposium on Visual Computing, ISVC 2012 - Rethymnon, Crete, Greece
Duration: 16 Jul 201218 Jul 2012

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
NumberPART 2
Volume7432 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference8th International Symposium on Visual Computing, ISVC 2012
Country/TerritoryGreece
CityRethymnon, Crete
Period16/07/1218/07/12

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