Patent Document ID: 20080131109
Application ID: 11795561
Patent Status: 0

Claim One:
1. An imaging device which outputs an electrical image signal of an object, comprising: an imaging optical system for forming an optical image of the object, the imaging optical system including a focus lens unit for focusing; an image sensor for taking the optical image of the object and converting the optical image to the electrical image signal; an image segmentation section for segmenting the image signal for a plurality of areas; a focusing information calculation section for calculating focusing information for the imaging optical system in a first area group including at least one of the plurality of areas; a lens driving control section for controlling the driving of the focus lens unit in an optical axis direction based on the focusing information; a feature point extraction section for extracting a feature point of the object in a second area group including at least one of the plurality of areas and for outputting feature point positional information indicating a position of the feature point; a low pass filter for extracting a low frequency component from a time-series oscillation frequency represented by the feature point positional information and for outputting the low frequency component as extracted positional information; and an area selection section for calculating a position of the second area group to be displayed based on the extracted positional information and for outputting the position as display positional information.