Motion estimation for medical application in psychiatry

Olivier Laligant; Remy Leconge; Frédéric Truchetet; Olivier Mahu; Alain Diou

doi:10.1117/1.1762521

1 July 2004 Motion estimation for medical application in psychiatry

Olivier Laligant, Remy Leconge, Frédéric Truchetet, Olivier Mahu, Alain Diou

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Journal of Electronic Imaging, Vol. 13, Issue 3, (July 2004). https://doi.org/10.1117/1.1762521

Abstract

Some systems are developed to help psychiatrists perform diagnoses. Among the approaches to characterize disease by systems tried, the study of face movements seems very informative concerning the state of the patient. We present a set of methods that enable us to characterize 3-D head and eyes movements in the following conditions: mobility of the subject in a sitting position and background lighting of the room. Our approach yields in a simple way to localize the iris and the characterization of its movement in 3-D space. The 3-D data are derived from stereoscopic system. The absolute 3-D movement of eyeballs and their relative movement with regard to the head are obtained, even when moving. A multiresolution method to deal with movements of great differences in amplitude, such as eye closure, is also presented. No specific lighting is required.

©(2004) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Olivier Laligant, Remy Leconge, Frédéric Truchetet, Olivier Mahu, and Alain Diou "Motion estimation for medical application in psychiatry," Journal of Electronic Imaging 13(3), (1 July 2004). https://doi.org/10.1117/1.1762521

Published: 1 July 2004

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KEYWORDS

Head

Motion estimation

Eye

Iris recognition

Light sources and illumination

Cameras

Spherical lenses

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