INVESTIGADORES
PURLIS Emmanuel
artículos
Título:
Geometry modelling of food materials from magnetic resonance imaging
Autor/es:
SANDRO M. GOÑI; EMMANUEL PURLIS; VIVIANA O. SALVADORI
Revista:
JOURNAL OF FOOD ENGINEERING
Editorial:
ELSEVIER SCI LTD
Referencias:
Año: 2008 vol. 88 p. 561 - 567
ISSN:
0260-8774
Resumen:
Three-dimensional geometric models of irregular food were constructed to contribute to process modelling area shedding light on geometry development aspects. Object reconstruction was performed using a cross-sectional design technique from magnetic resonance images. Boundaries of cross-section images were approximated by B-Spline curves after an image processing procedure. Then, a non-uniform rational B-Spline based model representing the food material was built using a lofting method by interpolating all B-Spline curves. This methodology was applied to lamb, pork and chicken carcasses, and beef semitendinosus muscle. The obtained geometric models were visually compared with real samples showing a very good agreement. The presented methodology can be used to generate a geometry database saving efforts and decreasing error associated to experimental measurements.