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Stable, unique and salient feature point detection are helpful in efficient and accurate image matching. We propose three criteria for screening feature points, which are stability, uniqueness and saliency criterion. Based on stability criterion, robust and stable feature points can be selected. According to uniqueness criterion, feature points with repeated features would be removed. And points with distinct characteristic information can be retained in accordance with saliency criterion. By eliminating the feature points that do not meet these criteria, image matching can be more efficient and accurate. The feature point screening criteria are incorporated into common matching algorithms to verify its effectiveness. The experimental results show that the feature point screening criteria proposed can improve the matching accuracy, repetition rate and matching speed over versatile scenario.

Title:Feature point screening for image matching author(s) : Baoguo Wei, Jinwei Wei, Mingzhi Cai, Xu Li, Yulan Zhang

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