---
title: "3-D Shape Representation by Contours"
authors:
  - "Isaac Weiss"
doi: ""
url: "https://ijcai.org/proceedings/1985/194"
pdf: "https://ijcai.org/proceedings/1985/0194.pdf"
venue: "Proceedings of the Ninth International Joint Conference on Artificial Intelligence"
year: 1985
pages: "969-971"
track: "Perception"
keywords:
---

# 3-D Shape Representation by Contours

Isaac Weiss

*Proceedings of the Ninth International Joint Conference on Artificial Intelligence*, pages 969-971.

## Abstract

The question of 3-D shape representation is studied on tbe fundamental and generallevel. Tbe two aspects of tbe problem , (i) tbe reconstuction of a 3-D sbape from a given set of contours, and (ii) iinding "natural" coordinates on a given surface, are treated by tbe same tbeory. We lirst set a few basic principles tbat sbould guide any shape reconstruction mecbanism, regardless of its physical implementation. Second, we propose a new matbematical procedure tbat camplies witb tbese principles and offers several advantages over tbe existing ad hoc treatments. Some general results are derived from tbis procedure, which conform very well with human visual perception.