Importance

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Abstract

Feature points are extracted from a reference frame. Matching points corresponding to the respective feature points are extracted from a tracking frame. The reference and tracking frames are consecutive in time series. An inverse vector, corresponding to motion of the whole screen, having the matching point as a starting point is obtained. An endpoint of the inverse vector is calculated as a moved point. The matching point is classified as a stationary point when a position of the moved point is within a predetermined range relative to a position of the feature point. When the position of the moved point is out of the predetermined range, whether a correlation between the moved point and the feature point is high is determined. When the correlation is high, the matching point is classified as the outlier. When the correlation is low, the matching point is classified as a moving point.

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First Claim