Accuracy assessment and control point configuration when using the DLT for photogrammetry

John Henry Challis, David G. Kerwin

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

The direct linear transformation (DLT) is a common technique used to calibrate cameras and subsequently reconstruct points filmed with two or more cameras in a three-dimensional object space. The assessment of the accuracy of this technique, and of the influence of the distribution of control points on accuracy were examined. It was concluded that to obtain a true estimation of reconstruction accuracy, an independent assessment criterion is required, and that the use of control points distributed around the outside, rather than within the space to be calibrated, is preferred.

Original languageEnglish (US)
Pages (from-to)1053-1058
Number of pages6
JournalJournal of Biomechanics
Volume25
Issue number9
DOIs
StatePublished - Jan 1 1992

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

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