19-4 Oblique pixel-slide method using optical devices for digital cameras with a single-CCD

Abstract

This paper presents a new pixel-slide method using optical devices for digital cameras with a Bayer CFA CCD to achieve the high resolution. Optical devices consist of polarozation filter and liquid crystal filter to shift a image by 1/2 pixel diagonally. Forthermore the authors have developed interpolation method which takes advantage of color signal correlation to convine two image when pixel-sliding. The effectiveness has been established because the image with CCD(100M pixels) show that it makes the resolution higher than 1600TV lines.