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Interpolation using neural networks for digital still cameras

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3 Author(s)
Jinwook Go ; Dept. of Electr. & Comput. Eng., Yonsei Univ., Seoul, South Korea ; Kwanghoon Sohn ; Chulhee Lee

In this paper we present a color interpolation technique based on artificial neural networks for a single-chip CCD (charge-coupled device) camera with a Bayer color filter array (CFA). Single-chip digital cameras use a color filter array and an interpolation method in order to produce high quality color images from sparsely sampled images. We have applied 3-layer feedforward neural networks in order to interpolate a missing pixel from surrounding pixels. And we compare the proposed method with conventional interpolation methods such as the bilinear interpolation method and cubic spline interpolation method. Experiments show that the proposed interpolation algorithm based on neural networks provides a better performance than the conventional interpolation algorithms

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Consumer Electronics, IEEE Transactions on  (Volume:46 ,  Issue: 3 )