Eur. Phys. J. Appl. Phys.
Volume 44, Number 3, December 2008
|Page(s)||261 - 272|
|Published online||24 October 2008|
Real-time optical 2D wavelet transform based on the JPEG2000 standards
Laboratoire Brest-ISEN (L@BISEN), Institut Supérieur
d'Électronique et du Numérique de Brest, France
2 Faculté d'Ingénierie, Université de Moncton, Canada
Corresponding author: email@example.com
Revised: 5 May 2008
Accepted: 28 August 2008
Published online: 24 October 2008
In image processing, the Wavelet Transform (WT) is largely used. However, time requirements for large two-dimensional image transforms are hard to meet with sequential implementations. Parallel implementation decreases the processing time and allows to reach a real-time operation in image coding. Unfortunately, this parallel coding increases the hardware complexity. We propose an optical implementation of the JPEG2000 compression using a special implementation of the WT. Special attention is paid to propose a simple all optical setup carrying out the optical implementation of JPEG2000 compression for gray-level images. Finally, an adaptation of our technique to colored images is proposed. Wb
PACS: 42.30.Kq – Fourier optics / 42.30.Va – Image forming and processing / 42.30.Tz – Computer vision; robotic vision
© EDP Sciences, 2008
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