---
title: "On Shapes"
authors:
  - "Dana H. Ballard"
  - "Daniel Sabbah"
doi: ""
url: "https://ijcai.org/proceedings/1981/113"
pdf: "https://ijcai.org/proceedings/1981/0113.pdf"
venue: "Proceedings of the Seventh International Joint Conference on Artificial Intelligence"
year: 1981
pages: "607-611"
track: "Vision: 3-d"
keywords:
---

# On Shapes

Dana H. Ballard, Daniel Sabbah

*Proceedings of the Seventh International Joint Conference on Artificial Intelligence*, pages 607-611.

## Abstract

An important problem in computer vision is to detect the presence of a given rigid, 3-d object. Such objects can be detected from intrinsic image data by a Hough transform technique coupled with a polyhedral representation. More precisely, a known object is detected by finding changes in orientation, translation, and scale of the object from its canonical description.