| 摘要 |
An imaging device includes an imaging-lens, an image-sensor, a lens-moving-mechanism, a ROM, and an intersection-point-position-control-section. The lens-moving-mechanism moves an intersection point on the image-sensor by moving a second lens in a plane perpendicular to an optical axis. The ROM stores, in advance, a LUT that stores the intersection point and an image quality evaluation value of an image, which is obtained through image capturing performed at the intersection point, in association with each other. The intersection-point-position-control-section acquires the current intersection point, calculates distances between the current intersection point and the plurality of intersection points stored in the LUT, and selects an intersection point for imaging, at which a ratio of the image quality evaluation value to the distance from the current intersection point is at the maximum, among the positions of the plurality of intersection points stored in the LUT. |
| 主权项 |
1. An imaging device comprising:
an imaging lens that forms an image of a subject; an image sensor that captures the image of the subject; a moving mechanism that moves a position of an intersection point between the image sensor and an optical axis of the imaging lens by moving at least either one of the image sensor or a lens included in the imaging lens in a plane which is perpendicular to the optical axis; a memory that stores image quality evaluation values respectively corresponding to positions of a plurality of the intersection points; and an intersection point position control section that acquires a position of the current intersection point, calculates distances between the position of the current intersection point and the positions of the plurality of the intersection points stored in the memory, selects the position of the intersection point, at which a ratio of the image quality evaluation value to the distance from the current intersection point is at the maximum, as a position of an intersection point for imaging, among the positions of the plurality of the intersection points stored in the memory, and causes the moving mechanism to move a position of the current intersection point to the position of the intersection point for imaging. |
