Paper
1 March 1994 Comparison of coherent and noncoherent optical correlators
David P. Casasent, Gregory P. House
Author Affiliations +
Abstract
This paper presents a simplified description of coherent and noncoherent optical correlators and derives the correlator models. The advantages of the tolerances in component positioning and quality for the noncoherent correlator are explained in detail. Performance measures for correlator comparison are outlined and quantitative comparison data are provided. An implementation approach for bipolar noncoherent filters is introduced and promising results simulating a limited number of amplitude and phase levels are given. We will show that the performance of noncoherent and coherent correlators are comparable and thus the noncoherent correlator should be more widely used because of its implementation advantages.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David P. Casasent and Gregory P. House "Comparison of coherent and noncoherent optical correlators", Proc. SPIE 2237, Optical Pattern Recognition V, (1 March 1994); https://doi.org/10.1117/12.169421
Lens.org Logo
CITATIONS
Cited by 4 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Optical correlators

Image filtering

Tolerancing

Optical filters

Optical pattern recognition

Detection and tracking algorithms

Sensors

Back to Top