Method, apparatus and electronic device for detecting a display region of a video image in real time
US11514584B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2021 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Aug 4, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20132
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus and electronic device for detecting a display region of a video image in real time. The method includes: determining a bright pixel threshold line that distinguishes a display region from a black edge region of the current frame of image according to a pixel value of each pixel; determining a time-domain warning line according to time-domain motion statistic values of each row and each column of pixels of the current frame of image; determining a target optimal gradient line that distinguishes the display region from the black edge region of the current frame of image; and determining a boundary bright line between the display region and the black edge region of the current frame of image according to the bright pixel threshold line, the time-domain warning line and the target gradient line to determine the display region of the current frame of image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.