A motion detection device includes a feature extracting section 2
extracting a feature area of an object from among frame images clipped by
an image pickup section 1, a feature standardizing section 3
standardizing a size of a feature area extracted by the feature
extracting section 2, a balloting section 4 counting up a ballot value of
an image area on a frame image located in a standardized pattern that is
standardized by the feature standardizing section 3, and a shift speed
detecting section 5 calculating a gradient of a counted-up ballot value
and calculating a shift direction, a shift speed and position of a
feature area based on the gradient.