8方向補間ブロックマッチングによる回転対応画像照合

抄録

The template matching is a method to search the target image area that is similar to the template image. The template matching is a simple method. But, the target image must have the right position as the template image generally. Therefore it requires large computational cost when the location and the inclination of a target image area are unknown. This paper proposes a method to search the target image area that has a free location and a free inclination by the separated template image. In this method, the template image is divided into block areas with 3 by 3 pixels. The image pattern in each block is rotated by 45 degrees and matching process is performed between rotated blocks and an objective image. The experimental results show that the proposed method had a higher reliability for matching in comparison with the conventional methods.