Title | ||
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Transmission of images over general packet radio services using advanced wavelet image codecs and digital signal processor chips |
Abstract | ||
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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 (GSMIGPRS) network. Since the channel capacity of the GSMIGPRS 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 protocolluser datagram protocolltrivial file transfer protocol (IP/UDP/TFTP). (c) 2006 SPIE and IS&T. |
Year | DOI | Venue |
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2006 | 10.1117/1.2372780 | JOURNAL OF ELECTRONIC IMAGING |
Keywords | Field | DocType |
wavelets,wavelet transforms,general packet radio service,global system for mobile communications,chip,networks,data storage,digital signal processor,jpeg2000,computer hardware | GSM,User Datagram Protocol,Computer science,Adaptive Multi-Rate audio codec,Real-time computing,Packet radio,JPEG 2000,Enhanced Variable Rate Codec,Codec,Wavelet transform | Journal |
Volume | Issue | ISSN |
15 | 4 | 1017-9909 |
Citations | PageRank | References |
0 | 0.34 | 23 |
Authors | ||
3 |
Name | Order | Citations | PageRank |
---|---|---|---|
P. Planinšič | 1 | 27 | 7.70 |
Dusan Gleich | 2 | 24 | 6.92 |
Jože Mohorko | 3 | 0 | 0.34 |