公开(公告)号：US20230326006A1

公开(公告)日：2023-10-12

申请号：US18042422

申请日：2021-08-25

Applicant: GOERTEK INC.

Inventor： Xiaoman WANG

IPC: G06T7/00 ,  G06T7/60 ,  G06T7/13 ,  G06T7/136 ,  G06T5/00 ,  G06T7/11 ,  G06T7/73 ,  G06F18/23

CPC classification number: G06T7/0004 ,  G06T7/60 ,  G06T7/13 ,  G06T7/136 ,  G06T5/002 ,  G06T7/11 ,  G06T7/73 ,  G06F18/23 ,  G06T2207/30121 ,  G06T2207/20224

Abstract: A defect detection method for an LCD screen includes acquiring a screen image of the LCD screen, performing a rough search for defects in the screen image to extract a suspected area where the defects are located, (based on the suspected area,) clustering every pixel point in the suspected area to obtain clustering results, and each clustering result corresponds to a suspected defect, and (according to the clustering result,) calculating a width and length of the suspected defect corresponding to the clustering result, and determining whether the suspected defect is a screen defect and which type of screen defect it belongs to based on the width and length of the suspected defect. The technical solution of the present disclosure realizes automatic detection of screen defects by rough positioning and accurate positioning of suspected defects, and the detection results are accurate and reliable.