Bidirectional compensation method and apparatus for projection thermal defocusing, and readable storage medium
US11934089B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2020 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Mar 13, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to the technical field of compensation for projection thermal defocusing, and the embodiments specifically disclose a bidirectional compensation method and apparatus for projection thermal defocusing, and a readable storage medium. The bidirectional compensation method for projection thermal defocusing provided in the present disclosure comprises determining whether to proceed to a definition value determination step according to whether a similarity value of two latest projected picture images satisfies a preset similarity value requirement; by means of the method of proceeding to first-direction thermal defocusing compensation or second-direction thermal defocusing compensation by comparing the magnitude of definition values of the latest two projected picture images, non-perception compensation for projection thermal defocusing is achieved, without using a specified compensation direction and a specific focusing map, and a compensation effect is achieved by means of real-time analysis of projected pictures, the operation being convenient and suitable for widespread popularization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.