Home // UBICOMM 2010, The Fourth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies // View article
Authors:
Fatemeh Taherian
Davud Asemani
Elham Kermani
Keywords: pulse frequency modulation (PFM); suppression; promotion; digital image processing
Abstract:
Image pulse sensors provide pixels information with a series of pulse train considering Pulse Frequency Modulation (PFM). PFM sensors are often used in vision chips considering related advantages. In this paper, edge detection and contrast enhancement algorithms are analyzed and simulated using pulse domain techniques of suppression and promotion. Comparing with classical methods, pulse-domain-based algorithms show a better performance as well as simpler implementation in circuit level. Designing and implementing the pulse-domain algorithms on FPGA, a simple and fast realization of image processing methods for edge detection and contrast enhancement is presented. The integration of proposed design in cameras is discussed and evaluated in terms of circuit complexity as well as computational load
Pages: 495 to 499
Copyright: Copyright (c) IARIA, 2010
Publication date: October 25, 2010
Published in: conference
ISSN: 2308-4278
ISBN: 978-1-61208-100-7
Location: Florence, Italy
Dates: from October 25, 2010 to October 30, 2010