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A Study of Image Compression Based Transmission Algorithm Using Spiht for Low Bit Rate Application

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Author(s): Ritu Chourasiya | Ajit Shrivastava

Journal: Advanced Computing : an International Journal
ISSN 2229-726X

Volume: 3;
Issue: 6;
Start page: 47;
Date: 2012;
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Keywords: Wavelet analysis | image compression | SPIHT algorithm | Precise Rate Control (PRC).

ABSTRACT
Image compression is internationally recognized up to the minute tools for decrease the communicationbandwidth and save the transmitting power. It should reproduce a good quality image after compressedat low bit rates. Set partitioning in hierarchical trees (SPIHT) is wavelet based computationally very fastand among the best image compression based transmission algorithm that offers good compressionratios, fast execution time and good image quality. Precise Rate Control (PRC) is the distinctcharacteristic of SPIHT. Image compression-based on Precise Rate Control and fast coding time areprincipally analyzed in this paper. Experimental result shows that, in the case of low bit-rate, themodified algorithm with fast Coding Time and Precise Rate Control can reduce the execution time andimproves the quality of reconstructed image in both PSNR and perceptual when compare to at the samelow bit rate.
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