Local processors for on line image processing with applications in intelligent vehicle technologies

Authors:
Dan Popescu;Radu Dobrescu;Valentin Avram;Stefan Mocanu
Affiliations:
Department of Control and Computers, POLITEHNICA University of Bucharest, Bucharest 6, Romania;Department of Control and Computers, POLITEHNICA University of Bucharest, Bucharest 6, Romania;Department of Control and Computers, POLITEHNICA University of Bucharest, Bucharest 6, Romania;Department of Control and Computers, POLITEHNICA University of Bucharest, Bucharest 6, Romania
Venue:
ICS'06 Proceedings of the 10th WSEAS international conference on Systems
Year:
2006

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Abstract

The paper describes the implementations of a median filter and a logical filter for edge detection which acts in a 3×3 pixels neighborhood. For multitask processing configuration a pipeline one is proposed. This structure, which is an interface between sensing element (camera) and the main processing system, achieves the real time video signal preprocessing, during the image acquisition. In order to form the working neighborhoods, the input image signal is delayed (two lines and three pixels). We propose the hardware implementation of some primary processing algorithms using five points neighborhood: a simultaneous comparison median filter, a succesive comparison median filter and an edge detection logical filter. By reason of on line processing possibility we propose this configuration inside of a video system for automated guided vehicles.