“A system for interactive modeling of physical curved surface objects” by England
Conference:
Type(s):
Title:
- A system for interactive modeling of physical curved surface objects
Presenter(s)/Author(s):
Abstract:
It is often important to obtain descriptions of existing objects for computer graphics data bases. A system to aid interactive modeling (in three dimensions) of a physical object is described. The system allows a user to fit a bi-cubic parametric spline surface to an object by superimposing stereoscopic views of the computer surface with stereoscopic television views of the object. A 3-D joystick is used to manipulate surface control points while the user views the computed surface as isoparametric contours. A raster scan display polarization stereoscope is used. The left eye and right eye surface views are computed using a unique display processor designed and constructed for the evaluation of raster scan graphics techniques. The display processor consists of multiple non-pipelined concurrently operating microprogrammed modules. The computation of the two reasonably complex images (>500 vectors each) takes less than 33 msec allowing real time display at standard television rates.
References:
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