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System and method for finding stable keypoints in a picture image using localized scale space properties
System and method for finding stable keypoints in a picture image using localized scale space properties
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机译:使用局部比例尺空间属性在图片图像中找到稳定关键点的系统和方法
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摘要
A method and system is provided for finding stable keypoints in a picture image using localized scale space properties. An integral image of an input image is calculated. Then a scale space pyramid layer representation of the input image is constructed at multiple scales, wherein at each scale, a set of specific filters are applied to the input image to produce an approximation of at least a portion of the input image. Outputs from filters are combined together to form a single function of scale and space. Stable keypoint locations are identified in each scale at pixel locations at which the single function attains a local peak value. The stable keypoint locations which have been identified are then stored in a memory storage.
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