Projection image correcting method and projection apparatus
US10044995B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 23, 2016 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Dec 23, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a projection image correcting method and a projection apparatus. The method includes: receiving real-time brightness values of M sub-images in a current to-be-displayed image, the real-time brightness values being acquired by a plurality of sensors arranged on a reflector which is located opposite to a projection lens, and obtaining a brightness adjusting value of a j-th sub-image in the current to-be-displayed image according to the real-time brightness values of the M sub-images. Adjustment is made, in combination with brightness adjusting values obtained from the current image to be displayed, to brightness values of each sub-image in an image to be displayed after the current to-be-displayed image, thereby making brightness of displayed images uniform, and improving the projection image quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.