| 摘要 |
An endoscope apparatus having a plurality of observation modes includes: an objective optical system including a moving lens; a CCD that picks up an image of an object via the objective optical system; a contour enhancement section that performs contour enhancement of the image outputted from the CCD and outputs contour component signals; a signal value comparison section that compares a maximum value of the contour component signals and a predetermined threshold value according to the observation mode; a focusing evaluation section that determines a focusing state by determining a signal distribution of the contour component signals; and an actuator drive section that controls movement of the moving lens based on the focusing state determined by the focusing evaluation section and a result of the comparison by the signal value comparison section.
|
