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Journal of Electronic Imaging

Transmission of images over general packet radio services using advanced wavelet image codecs and digital signal processor chips
Author(s): Peter Planinšic; Dušan Gleich; Jože Mohorko
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Paper Abstract

We develop a wavelet-based codec using a low-cost and low-energy-consuming 16-bit fixed-point digital signal processor (DSP). The target application is designed to grab an image from a camera, code the image using a wavelet-based codec, and send a coded file over a wireless global system for mobile communications/general packet radio services (GSM/GPRS) network. Since the channel capacity of the GSM/GPRS network is limited, a DSP with a relatively low computational power is sufficient to implement an image codec. A trade-off is made between the complexity and the efficiency of the wavelet-based image coder. Any implementation issues concerning the wavelet transform and entropy coding are discussed. Lifting schemes for a 9-7 and a 5-3 filter bank are used. The novel ordering of bit-plane bits is presented. The proposed codec is comparable with a JPEG2000 codec in the rate-distortion sense. The experimental results show that the implementation of JPEG 2000 on the presented platform runs 60% slower than the proposed codec. The coded file is transmitted over a wireless network using Internet protocol/user datagram protocol/trivial file transfer protocol (IP/UDP/TFTP).

Paper Details

Date Published: 1 October 2006
PDF: 10 pages
J. Electron. Imaging. 15(4) 041205 doi: 10.1117/1.2372780
Published in: Journal of Electronic Imaging Volume 15, Issue 4
Show Author Affiliations
Peter Planinšic, Univ. of Maribor (Slovenia)
Dušan Gleich, Univ. of Maribor (Slovenia)
Jože Mohorko, Univ. of Maribor (Slovenia)

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