METHOD FOR GENERATING A HIERARCHICAL STRUCTURED PATTERN BASED DESCRIPTOR AND METHOD AND DEVICE FOR RECOGNIZING OBJECT USING THE SAME

摘要

Disclosed are a method of generating a hierarchical structured pattern based descriptor and a method and a device for recognizing an object in an image using the same. The method of generating a hierarchical structured pattern based descriptor may include generating a hierarchical structured pattern by defining a parent node based on a patch region for a feature point of an input image to be analyzed and defining a child node obtained by dividing the parent node to a predetermined depth, calculating a master direction vector of the patch region based on position coordinates and representative pixel values of the parent node and the child node, and calculating a rotation angle of the patch region based on the master direction vector and rotating the hierarchical structured pattern by the rotation angle.

主权项

1. A method of generating a hierarchical structured pattern based descriptor to recognize an object from an image, the method comprising:
generating a hierarchical structured pattern by defining a parent node based on a patch region for a feature point of an input image to be analyzed and defining a child node by dividing the parent node to a predetermined depth; calculating a master direction vector of the patch region based on representative pixel values and position coordinates of the parent node and the child node; and calculating a rotation angle of the patch region based on the master direction vector and rotating the hierarchical structured pattern by the rotation angle.