Record Display for the EPA National Library Catalog

RECORD NUMBER: 7 OF 101

OLS Field Name OLS Field Data
Main Title Approximation of Surfaces in Quantitative 3-D Reconstructions.
Author Mercer, R. R. ; McCauley, G. M. ; Anjilvel, S. ;
CORP Author Duke Univ. Medical Center, Durham, NC.;Health Effects Research Lab., Research Triangle Park, NC. Environmental Toxicology Div.
Publisher c1990
Year Published 1990
Report Number EPA-R-813113; EPA/600/J-90/528;
Stock Number PB91-213512
Additional Subjects Biomedical engineering ; Image reconstruction ; Three dimensional models ; Algorithms ; Approximation ; Computer calculations ; Surface geometry ; Reprints ; Tiling
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB91-213512 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 11/26/1991
Collation 14p
Abstract
In serial section reconstructions a series of planar profiles are taken representing curves on the surface of the structure to be reconstructed. For a number of quantitative serial section methods, approximation of a surface is done by the formation of tiles between points of adjanent profiles. As generally proposed, finding this approximation has been difficult due to the inordinately large number of possible solutions resulting from different combinations of tiles between points. Current algorithms have either applied heuristic criteria to force the formation of only one solution or have searched all acceptable combinations for one that minimizes some cost function. The algorithm presented has been developed to choose the tiling which minimizes the estimated error when the tile approximation of the surface is used in subsequent quantitative algorithms such as the calculation of surface area. (Copyright (c) 1990 IEEE.)