公开(公告)号：US20170277935A1

公开(公告)日：2017-09-28

申请号：US15080599

申请日：2016-03-25

Applicant: Novatek Microelectronics Corp.

Inventor： Jau-Hong Kao ,  Yu-Chieh Su ,  Yi-Jen Wu

IPC: G06K9/00 ,  G06T11/60 ,  G06K9/62

CPC classification number: G06K9/00093 ,  G06K9/00926

Abstract: A fingerprint enrollment method and a fingerprint enrollment apparatus are provided. A minutiae feature and a pore feature of a first fingerprint image are extracted to obtain a first template. A minutiae feature and a pore feature of a second fingerprint image are extracted to obtain a second template. A minutiae matching score between the minutiae features of the first template and the minutiae features of the second template is calculated. When the minutiae matching score is between the first threshold and a second threshold, stitching, mosaicking or synthesis of the first template and the second template are performed by utilizing a matching relation between the pore features of the first template and the pore features of the second template and utilizing the matching relation between the minutiae feature of the first template and the minutiae feature of the second template.

公开(公告)号：US09773147B1

公开(公告)日：2017-09-26

申请号：US15080599

申请日：2016-03-25

Applicant: Novatek Microelectronics Corp.

Inventor： Jau-Hong Kao ,  Yu-Chieh Su ,  Yi-Jen Wu

IPC: G06K9/00 ,  G06K9/62 ,  G06T11/60

CPC classification number: G06K9/00093 ,  G06K9/00926

Abstract: A fingerprint enrollment method and a fingerprint enrollment apparatus are provided. A minutiae feature and a pore feature of a first fingerprint image are extracted to obtain a first template. A minutiae feature and a pore feature of a second fingerprint image are extracted to obtain a second template. A minutiae matching score between the minutiae features of the first template and the minutiae features of the second template is calculated. When the minutiae matching score is between the first threshold and a second threshold, stitching, mosaicking or synthesis of the first template and the second template are performed by utilizing a matching relation between the pore features of the first template and the pore features of the second template and utilizing the matching relation between the minutiae feature of the first template and the minutiae feature of the second template.