非对称滤波器组在视网膜图像压缩中的应用

2012 IEEE International Conference on Computational Intelligence and Computing Research Pub Date : 2012-12-01 DOI:10.1109/ICCIC.2012.6510264

Tejas G. Patil, S. Patankar, J. Kulkarni

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引用次数: 0

摘要

提出了一种利用非对称滤波器构成的滤波器组进行视网膜图像压缩的方法。还详细说明了一种推导对称滤波器的方法。我们还概述了滤波器组的基础知识和与之相关的完美重构条件。此外，还强调了抽取和插值阶段数对所提滤波器组可压缩性的影响。通过计算2:1和4:1压缩比下样本库视网膜图像的信噪比(SNR)，进行压缩实验。采用所提出的非对称滤波器组，2:1和4:1压缩比的平均信噪比略有不同。

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On retinal image compression using asymmetric filter bank

This paper presents method of retinal image compression using filter bank which is build with non symmetric filters. A method for deriving symmetric filters is also illustrated in detail. We also overview the basics of filter bank and perfect reconstruction conditions associated with it. The effect of number of decimating and interpolating stages on compressibility of proposed filter banks is also highlighted. Experimentation of compression is done on sample database retinal images by computing its signal to noise ratio (SNR) for 2:1 and 4:1 compression ratio. Average SNR for 2:1 and 4:1 compression ratio with proposed asymmetric filter bank is observed to be with a slight difference.

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2012 IEEE International Conference on Computational Intelligence and Computing Research

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