| 摘要 |
PROBLEM TO BE SOLVED: To provide an image processor which obtains a relatively satisfactory image from a close range to a long range with a two focus lens in which a distance is fixed up to an imaging area. SOLUTION: The image processor comprises: a two focus lens 21 obtained by combining first and second lenses 22, 23 with different focal lengths; an imaging device 24 for generating a first image showing a composite image from both of the first and second lenses 22, 23, and a second image showing an image from one of either the first lens 22 or the second lens 23; a convolution part 33 for executing convolution operation of the first image and an inverse function of a blurring function of either one of the first lens 22 or the second lens 23; a subtractor 36 for subtracting the second image from the first image, and for calculating a fourth image showing an image from the other of either the first lens 22 or the second lens 23; and a comparison determination part 38 for determining whether the second image or the fourth image is focused. COPYRIGHT: (C)2008,JPO&INPIT |
