Special Section on Color Imaging: Processing, Hard Copy, and Applications

Transmission of images over general packet radio services using advanced wavelet image codecs and digital signal processor chips

[+] Author Affiliations
Peter Planinšič

University of Maribor, Faculty of Electrical Engineering and Computer Science, 2000 Maribor, Slovenia

Dušan Gleich

University of Maribor, Faculty of Electrical Engineering and Computer Science, 2000 Maribor, Slovenia

Jože Mohorko

Ultra d.o.o., Cesta Otona Župancica 23a, 1410 Zagorje ob Savi, Slovenia

J. Electron. Imaging. 15(4), 041205 (November 14, 2006). doi:10.1117/1.2372780
History: Received May 31, 2005; Revised May 17, 2006; Accepted June 07, 2006; Published November 14, 2006
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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).

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© 2006 SPIE and IS&T

Citation

Peter Planinšič ; Dušan Gleich and Jože Mohorko
"Transmission of images over general packet radio services using advanced wavelet image codecs and digital signal processor chips", J. Electron. Imaging. 15(4), 041205 (November 14, 2006). ; http://dx.doi.org/10.1117/1.2372780


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