Patent · US Active

Dirt detection on screen

US11156564B2 · kind B2 · utility

0Cited by

3References

12Claims

0Family size

Assignees

Inventors

Xiaolei Liu · Los Angeles, US
Yunqi Wang · Beijing, CN
Minglei Chu · Beijing, CN
Lili Chen · Beijing, CN
Hao Zhang · Shanghai, CN

Key dates

Filing date	Aug 30, 2019
Grant date	Oct 26, 2021
Priority date	—
Expiry date	Dec 4, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30121
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for detecting dirt on a screen, a device for the same, an electronic device and a computer-readable storage medium are provided. The method includes acquiring a first image of the screen when the screen is displaying a first picture, determining a dirt detection area in the first image with a mask image, and detecting a position of the dirt within the dirt detection area. With the method provided by the embodiments of the disclosure, the positon of dirt on the screen could be detected based on at most two images of the screen. The time for detecting dirt on the screen is greatly shortened, and the efficiency of detection is enhanced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.