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4 February 2010 A four-directional body shape measurement system and its application for pectus excavatum severity assessment
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Proceedings Volume 7526, Three-Dimensional Image Processing (3DIP) and Applications; 75260P (2010)
Event: IS&T/SPIE Electronic Imaging, 2010, San Jose, California, United States
The paper presents an optical three-dimensional shape measurement system and an automatic method for assessment of pectus excavatum severity based on the measurement results. The measurement system consists of four directional modules utilizing structured light projection method (namely temporal phase shifting TPS and modified Gray code projection) to capture the shape of body surface of the patients. The measurement result is a three-dimensional point cloud representing the skin surface. The system setup is described and the typical measurement parameters are given. The automated data analysis path is explained. Its main stages are: point cloud segmentation, normalization of trunk orientation, cutting the model into slices, analysis of each slice shape, selecting the proper slice for the assessment of pectus excavatum of the patient and calculating its shape parameter. The analysis does not require any initial processing (e.g. surface fitting or mesh building) as it is conducted on raw 3-D point cloud data resulting from the measurement. A new shape parameter (I3ds) was developed that shows correlation with CT Haller Index widely used for assessment of pectus excavatum. Preliminary clinical results are presented.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Marcin Witkowski, Wojciech Glinkowski, Robert Sitnik, Hanna Kocoń, Paweł Bolewicki, and Andrzej Górecki "A four-directional body shape measurement system and its application for pectus excavatum severity assessment", Proc. SPIE 7526, Three-Dimensional Image Processing (3DIP) and Applications, 75260P (4 February 2010);

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