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Journal of Electronic Imaging

Aliasing reduction method for color digital still cameras with a single-chip charge-coupled device
Author(s): Tetsuya Kuno; Hiroaki Sugiura; Masako Asamura; Yoshiko Hatano; Narihiro Matoba
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Paper 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.

Paper Details

Date Published: 1 October 1999
PDF: 10 pages
J. Electron. Imag. 8(4) doi: 10.1117/1.482699
Published in: Journal of Electronic Imaging Volume 8, Issue 4
Show Author Affiliations
Tetsuya Kuno, Mitsubishi Electric Corp. (Japan)
Hiroaki Sugiura, Mitsubishi Electric Corp. (Japan)
Masako Asamura, Mitsubishi Electric Corp. (Japan)
Yoshiko Hatano, Mitsubishi Electric Corp. (Japan)
Narihiro Matoba, Mitsubishi Electric Corp. (Japan)

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