Aliasing reduction method for color digital still cameras with a single-chip charge-coupled device

Tetsuya Kuno; Hiroaki Sugiura; Masako Asamura; Yoshiko Hatano; Narihiro Matoba

doi:10.1117/1.482699

1 October 1999 Aliasing reduction method for color digital still cameras with a single-chip charge-coupled device

Tetsuya Kuno; Hiroaki Sugiura; Masako Asamura; Yoshiko Hatano; Narihiro Matoba;

Author Affiliations +

J. of Electronic Imaging, 8(4), (1999). doi:10.1117/1.482699

Abstract

This paper presents an aliasing reduction method for digital still cameras (DSCs) which takes advantage of the colorsignal correlation. The authors have developed a method of reducing aliasing by increasing the resolution of the color signals in DSCs using a single-chip charge-coupled device with a primary-color filter array. The new method interpolates the signals by taking advantage of the fact that color-signal variations are similar to one another in a local region of an image. In addition, it selects the signal that shows the highest correlation, either in the horizontal or vertical direction, for the color-signal positions subject to interpolation, thus improving color resolution. The effectiveness of the new method has been established: tests show that it significantly reduces aliasing.

Citation Download Citation

Tetsuya Kuno, Hiroaki Sugiura, Masako Asamura, Yoshiko Hatano, Narihiro Matoba, "Aliasing reduction method for color digital still cameras with a single-chip charge-coupled device," Journal of Electronic Imaging 8(4), (1 October 1999). https://doi.org/10.1117/1.482699

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