June 1995
Intermediate to advanced
438 pages
10h 53m
English
Content preview from Graphics Gems V (IBM Version)
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III.3
Tricubic Interpolation
K. Arata Louis, Picker International Ohio Imaging Nuclear Medicine Division Bedford Heights, Ohio. E-mail address: arata@nm.picker.com
Introduction
In many cases, linear interpolation provides a very good compromise between speed and accuracy. However, when the data volume is nonisotropic, linear interpolation may introduce objectionable artifacts. In these cases cubic interpolation may be substituted ( Pokorny and Gerald 1989; a generous treatment appears in Chapters seven and eight).
This gem reviews tricubic interpolation and provides a C code implementation. Additional information on bilinear and bicubic interpolation is available in the literature (Andrews and Patterson III 1976).