Patent ID: 6827268
Filing Date: 2004-12-07
Classification: G06K,G06T

Abstract:
An imaging device for imaging an object which is moving in a specified exposure time at specified time intervals using a plurality of imaging elements arranged in two dimensions, comprising:a first memory for storing a first image; a second memory for storing a second image that is imaged after the specified time interval from end of imaging of the first image, the first image or the second image being a set of output values of the plurality of the imaging elements; an extraction unit scanning a plurality of lines within each of said images, and extracting portions including the object from each of said images on the basis of variation patterns of the output values of the imaging elements on each line; a calculation unit calculating a movement distance of the object, as a number of imaging elements, during the specified time interval on the basis of the difference between a position of the portions including the object in the first image and a position of the portions including the object in the second image, and further calculating the movement distance of the object, as a number of imaging elements, during the specified exposure time in the first image on the basis of the ratio of the specified exposure time to the specified time interval, the movement of the object during the specified exposure time causing a motion blurred image portion of the first image; and a restoration unit restoring the first image without the motion blurred image portion from the first image having the motion blurred image portion caused by the movement of the object during the specified exposure time, on the basis of the movement distance during the specified exposure time and the difference values between the output values of adjacent imaging elements in the first image.