Correlation postprocessing-based method for the detection of de focused images

We present a method to detect patterns in defocused scenes by means of a joint transform correlator. We describe analytically the correlation plane, and we also introduce an original procedure to recognize the target by postprocessing the correlation plane. The performance of the methodology when th...

Full description

Bibliographic Details
Authors: Carnicer González, Arturo; Vallmitjana i Rico, Santiago; Juvells Prades, Ignacio
Format: Article
Status:Published version
Publication date:1997
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/24300
Online Access:https://hdl.handle.net/2445/24300
Access Level:Open access
Keyword:Reconeixement òptic de formes
Optical pattern recognition
Description
Summary:We present a method to detect patterns in defocused scenes by means of a joint transform correlator. We describe analytically the correlation plane, and we also introduce an original procedure to recognize the target by postprocessing the correlation plane. The performance of the methodology when the defocused images are corrupted by additive noise is also considered.