Opto-numerical procedures supporting dynamic lower limbs monitoring and their medical diagnosis

Marcin Witkowski; Malgorzata Kujawińska; Walter Rapp; Robert Sitnik

doi:10.1117/12.667424

2 February 2006 Opto-numerical procedures supporting dynamic lower limbs monitoring and their medical diagnosis

Marcin Witkowski, Malgorzata Kujawińska, Walter Rapp, Robert Sitnik

Proceedings Volume 6026, ICO20: Biomedical Optics; 60260Y (2006) https://doi.org/10.1117/12.667424
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

New optical full-field shape measurement systems allow transient shape capture at rates between 15 and 30 Hz. These frequency rates are enough to monitor controlled movements used e.g. for medical examination purposes. In this paper we present a set of algorithms which may be applied for processing of data gathered by fringe projection method implemented for lower limbs shape measurement. The purpose of presented algorithms is to locate anatomical structures based on the limb shape and its deformation in time. The algorithms are based on local surface curvature calculation and analysis of curvature maps changes during the measurement sequence. One of anatomical structure of high medical interest that is possible to scan and analyze, is patella. Tracking of patella position and orientation under dynamic conditions may lead to detect pathological patella movements and help in knee joint disease diagnosis. Therefore the usefulness of the algorithms developed was proven at examples of patella localization and monitoring.

Citation Download Citation

Marcin Witkowski, Malgorzata Kujawińska, Walter Rapp, and Robert Sitnik "Opto-numerical procedures supporting dynamic lower limbs monitoring and their medical diagnosis", Proc. SPIE 6026, ICO20: Biomedical Optics, 60260Y (2 February 2006); https://doi.org/10.1117/12.667424

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