| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress a resolution deterioration that occurs when correcting chromatic aberration of magnification including chromatic aberration of magnification generated in a fundus camera optical system and also that generated in an eyeball optical system which is an object of photography. <P>SOLUTION: An imaging element 19 photographs a fundus image by using light reflected by the fundus and entering the imaging element via color filters of a plurality of colors. In accordance with focusing conditions of the fundus photography, an image signal processing section 23 converts, by using coordinates of a pixel value of a specific color among the plurality of colors as reference coordinates, coordinates of pixel values of other colors, and calculates, on the basis of pixel values of the other colors after coordinate conversion, pixel values of the other colors at coordinates before coordinate conversion which correspond respectively to the pixel values of the other colors after coordinate conversion. The image signal processing section 23 then interpolates, on the basis of the pixel value of the specific color, pixel values of the specific color at other coordinates, and interpolates, on the basis of the interpolated pixel values of the specific color and the pixel values of the other colors at the coordinates before coordinate conversion, pixel values of the other colors at the other coordinates. <P>COPYRIGHT: (C)2012,JPO&INPIT |
