Image processing method, image processing apparatus, and non-transitory storage medium
US12073542B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Dec 3, 2021 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Dec 3, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image processing method includes: acquiring an input image of a teaching scenario; performing detection on the input image to determine a rectangular detection area that includes a blackboard-writing area; analyzing the rectangular detection area to determine a target area corresponding to the blackboard-writing area; determining four vertices of the target area; and according to the four vertices of the target area, performing coordinate transformation on the target area to obtain a corrected blackboard-writing area image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.