Method of generating descriptor for interest point in image and apparatus implementing the same

摘要

A method of generating a descriptor includes determining, in an image, a circular region having a center at an interest point to be described; extracting strips extending in the circular region in mutually different directions and intersecting together at the interest point; dividing each of the strips into patches; characterizing each of the patches using Haar features to acquire elements of the descriptor corresponding to the respective Haar features; and reordering the elements of the descriptor according to the strip corresponding to a maximum local.