Share Email Print

Proceedings Paper

Fundamental limits of three-dimensional sensing (or: nature makes no presents)
Author(s): Gerd Haeusler
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

We will discuss some physical limits of 3D-sensors that work on ''rough'' surfaces. An important result is that the most frequently used principles (laser triangulation and focus sensing with projected light spots) cannot achieve a better depth resolution than given by the Rayleigh depth of field. However we can achieve ''superresolution'' in depth by sacrificing lateral resolution: There is an ''uncertainty relation'' between lateral and longitudinal resolution. 1 .

Paper Details

Date Published: 1 July 1990
PDF: 2 pages
Proc. SPIE 1319, Optics in Complex Systems, (1 July 1990); doi: 10.1117/12.34739
Show Author Affiliations
Gerd Haeusler, University Erlangen (Germany)

Published in SPIE Proceedings Vol. 1319:
Optics in Complex Systems

© SPIE. Terms of Use
Back to Top