Premium
A 3‐dimensional digitizer using spherical co‐ordinates
Author(s) -
Thomas David
Publication year - 1988
Publication title -
australian dental journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.701
H-Index - 71
eISSN - 1834-7819
pISSN - 0045-0421
DOI - 10.1111/j.1834-7819.1988.tb00656.x
Subject(s) - cube (algebra) , ordinate , object (grammar) , surface (topology) , computer science , computer graphics (images) , engineering drawing , geometry , mathematics , artificial intelligence , engineering
This article describes an instrument which can, when supported by a small computer, make three‐dimensional measurements. Measurements can be made on the surface of any object able to fit within a 150 mm side cube. This instrument was intended for use with dental casts but could be applied to any type of object. Various possible techniques for three‐dimensional measurement are discussed and reasons given for the choice of a system based on spherical co‐ordinates.