Range camera self-calibration with independent object space scale observations

The geometric calibration of range cameras can be performed by means of an integrated self-calibrating bundle adjustment of measurements to signalised targets. The calibration solution quality, as indicated by the correlation between the camera position and the rangefinder offset, is degraded by the...

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Bibliographic Details
Published inJournal of spatial science Vol. 57; no. 2; pp. 247 - 257
Main Authors Lichti, Derek D., Qi, Xiaojuan
Format Journal Article
LanguageEnglish
Published East Perth Taylor & Francis Group 01.12.2012
Mapping Sciences Institute
Spatial Science Institute Australia
Subjects
Applied geophysics
Areal geology. Maps
correlation
Earth sciences
Earth, ocean, space
Exact sciences and technology
Geologic maps, cartography
Internal geophysics
object space constraints
range camera
self-calibration
orientation
correlation
solution
calibration
inclusions
quality
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Summary:The geometric calibration of range cameras can be performed by means of an integrated self-calibrating bundle adjustment of measurements to signalised targets. The calibration solution quality, as indicated by the correlation between the camera position and the rangefinder offset, is degraded by the need to use a planar target field. In this contribution the inclusion of inter-camera base distances and inter-target distances in the bundle adjustment are investigated. The results indicate that although neither measure can reduce the correlation, solution quality, as measured by independent image orientation, can be improved when long object distances are used in the self-calibration adjustment.
ISSN:1449-8596
1836-5655
DOI:10.1080/14498596.2012.733623