Title :
Improving calibration of 3-D video oculography systems
Author :
Schreiber, Kai ; Haslwanter, Thomas
Author_Institution :
Sch. of Optometry, California Univ., Berkeley, CA, USA
fDate :
4/1/2004 12:00:00 AM
Abstract :
Eye movement recordings with video-based techniques have become very popular, as long as they are restricted to the horizontal and vertical movements of the eye. Reliable measurement of the torsional component of eye movements, which is especially important in the diagnosis and investigation of pathologies, has remained a coveted goal. One of the main reasons is unresolved technical difficulties in the analysis of video-based images of the eye. Based on simulations, we present solutions to two of the primary problems: a robust and reliable calibration of horizontal and vertical eye movement recordings, and the extraction of suitable iris patterns for the determination of the torsional eye position component.
Keywords :
biomechanics; biomedical optical imaging; calibration; eye; image motion analysis; medical image processing; 3-D video oculography system calibration; biomedical image processing; diagnosis; eye movement recordings; iris patterns; pathological investigations; torsional eye movements; torsional eye position component; video-based images; Anatomy; Biomedical measurements; Calibration; Coils; Image analysis; Iris; Motor drives; Muscles; Robustness; Video recording; Algorithms; Calibration; Eye Movements; Humans; Image Enhancement; Image Interpretation, Computer-Assisted; Imaging, Three-Dimensional; Models, Biological; Motion; Reproducibility of Results; Rotation; Sensitivity and Specificity; Video Recording;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.2003.821025
