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Titolo:
COMPLETE CALIBRATION OF A STEREO PHOTOGRAMMETRIC SYSTEM THROUGH CONTROL POINTS OF UNKNOWN COORDINATES
Autore:
CERVERI P; BORGHESE NA; PEDOTTI A;
Indirizzi:
LITA,CNR,LAB HUMAN MOT STUDY & VIRTUAL REAL,IST NEUROSCI & BIOIMMAGINI,VIA FLLI CERVI 93 I-20090 MILAN ITALY LITA,CNR,LAB HUMAN MOT STUDY & VIRTUAL REAL,IST NEUROSCI & BIOIMMAGINI I-20090 MILAN ITALY POLITECN MILAN,DIPARTIMENTO BIOINGN,CTR BIOINGN,FDN PROJUVENTUTE I-20148 MILAN ITALY
Titolo Testata:
Journal of biomechanics
fascicolo: 10, volume: 31, anno: 1998,
pagine: 935 - 940
SICI:
0021-9290(1998)31:10<935:CCOASP>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
SELF-CALIBRATION; CAMERAS; ALGORITHM; ACCURACY;
Keywords:
CALIBRATION; EPIPOLAR GEOMETRY; EVOLUTION STRATEGIES; MOTION ANALYSIS; 3D RECONSTRUCTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
P. Cerveri et al., "COMPLETE CALIBRATION OF A STEREO PHOTOGRAMMETRIC SYSTEM THROUGH CONTROL POINTS OF UNKNOWN COORDINATES", Journal of biomechanics, 31(10), 1998, pp. 935-940

Abstract

This paper presents a new method for calibrating a video 3D stereo-photogrammetric system. The external parameters and the focal lengths ofthe cameras are determined from the epipolar constraint and the principal points are computed through the minimisation of a cost function carried out through an evolutionary optimisation. The method has been made more robust with a deterministic annealing procedure of the searchregion amplitude. Calibration is carried out by moving a rigid bar, carrying two markers on its extremities, inside the working volume. Thedistance between the two markers is the only measure required. Tests on real data are reported which show that the obtained accuracy is comparable to the one achieved calibrating with control points of known 3D coordinates. (C) 1998 Elsevier Science Ltd. All rights reserved.

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Documento generato il 02/04/20 alle ore 19:12:08