公开(公告)号：US20180365511A1

公开(公告)日：2018-12-20

申请号：US15628111

申请日：2017-06-20

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： CHUN-WEI HSIEH ,  SHIH-CHE CHIEN ,  FENG-CHIA CHANG ,  CHIEN-HAO HSIAO

IPC: G06K9/32 ,  G06K9/62

CPC classification number: G06K9/3241 ,  G06K9/6231

Abstract: A method of speeding up image detection, adapted to increase a speed of detecting a target image and enhance efficiency of image detection, comprises the steps of capturing an image; retrieving a plurality of characteristic points of the image; creating a region of interest (ROI) centered at the characteristic points each; creating a plurality of search point scan windows corresponding to the ROIs, respectively; calculating target hit scores of the characteristic points and the search point scan windows; comparing the target hit scores of the characteristic points and the search point scan windows to obtain an ROI most likely to have a target image; calculating centroid coordinates of the ROI by a centroid shift weight equation; and narrowing a scope of ROI search according to a location of the centroid coordinates and reducing a displacement between the search points.