---
title: "Forming Models Of Plane-And-Cylinder Faceled Bodies From Light Stripes"
authors:
  - "Robin J. Popplestone"
  - "Christopher M. Brown"
  - "A. Patricia Ambler"
  - "G. Crawford"
doi: ""
url: "https://ijcai.org/proceedings/1975/104"
pdf: "https://ijcai.org/proceedings/1975/0104.pdf"
venue: "Proceedings of the Fourth International Joint Conference on Artificial Intelligence"
year: 1975
pages: "664-667"
track: "Visual Information Processing"
keywords:
---

# Forming Models Of Plane-And-Cylinder Faceled Bodies From Light Stripes

Robin J. Popplestone, Christopher M. Brown, A. Patricia Ambler, G. Crawford

*Proceedings of the Fourth International Joint Conference on Artificial Intelligence*, pages 664-667.

## Abstract

A system is described which uses light stripe input to construct 3-D body models useful for automatic assembly. Special hardware can extract a stripe from a TV picture in about .02 second. Clusters of stripes from single surfaces in the body, and hence the equations of the surfaces themselves, are found by a program which forms hypotheses based on clues in the data and then tries to establish them. The resulting surface equations and the stripe evidence for them are used to produce the body model, which is a union of convex subsets of three-space formed as intersections of {possibly complemented) half-spaces and solid cylinders.