The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2020
Filed:
Mar. 23, 2017
Wuhan Jingce Electronic Group Co., Ltd., Hubei, CN;
Fangbo Lu, Hubei, CN;
Feng Yao, Hubei, CN;
Biaohua Deng, Hubei, CN;
Kai Chen, Hubei, CN;
Yafei Shen, Hubei, CN;
WUHAN JINGCE ELECTRONIC GROUP CO., LTD., Hubei, CN;
Abstract
The disclosure provides a background suppression method and a detecting device in automatic optical detection for a display panel, wherein the background suppression method includes the following steps: S: collecting a pure color image of the display panel; S: performing multi-level wavelet decomposition on the pure color image to obtain a series of high-frequency sub-bands and low-frequency sub-bands; S: performing coefficient smoothing process on high-frequency sub-bands in multiple directions of each level, and performing contrast enhancement process on each level of low-frequency sub-bands; S: the processed high-frequency sub-bands and the processed low-frequency sub-bands are subjected to wavelet reconstruction to obtain a defect image after background suppression. The disclosure performs multi-scale and multi-resolution decomposition on the image, and performs texture suppression and image enhancement on the decomposed high-frequency sub-bands and low-frequency sub-bands respectively, and can maintain the contrast of the original defect while suppressing the background texture.