INIFTA   05425
INSTITUTO DE INVESTIGACIONES FISICO-QUIMICAS TEORICAS Y APLICADAS
Unidad Ejecutora - UE
artículos
Título:
Three-dimensional reconstruction of irregular foodstuffs
Autor/es:
GOÑI SANDRO M.; PURLIS EMMANUEL; SALVADORI VIVIANA O.
Revista:
JOURNAL OF FOOD ENGINEERING
Referencias:
Año: 2007 vol. 82 p. 536 - 547
ISSN:
0260-8774
Resumen:
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3-D reconstruction of general solid
food materials was performed using a reverse engineering method based
on a surface cross-sectional design. Digital images of cross-sections
of irregular multi-dimensional foodstuffs were acquired using a
computer vision system, and image processing was performed to obtain
the actual boundaries. These boundaries were then approximated by
closed B-Spline curves, which were assembled through a lofting
technique to construct a geometrical representation of food
materials. Considering the reconstructed objects, a procedure based
on finite element method was developed to estimate the surface area
and volume. The developed finite element method approach was
validated against experimental volume values of apples and meat
pieces, obtaining an estimation error less than 2%. Surface area
prediction equations were proposed from estimated surface area values
and weight and volume measurements. Good agreement was found with
previously reported results.