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Applying constructed neural networks to lossless image compression

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1 Author(s)
S. G. Romaniuk ; Dept. of Inf. Syst. & Comput. Sci., Nat. Univ. of Singapore, Singapore

The ability to employ neural networks to the task of image compression has been pointed out in research. The pre-dominant approach to image compression is centered around the backpropagation algorithm used to train on overlapping frames of the original picture. Several deficiencies can be identified with this approach. First, no potential time bounds are provided for compressing images. Second, utilizing backpropagation is difficult due to its computational complexity. To overcome these shortcomings we propose a different approach by concentrating on a general class of 3-layer neural networks of 2(N+1) hidden units. It is shown that the class 𝒩* can uniquely represent a large number of images, in fact, the growth of this class is larger than exponential. Instead of training a network, it is automatically constructed. The obtainable compression rates (lossless) exceed 97% for square images of size 256×256 pixels

Published in:

Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference  (Volume:3 )

Date of Conference:

13-16 Nov 1994