Multi-dimensional image projection apparatus and multi-dimensional image calibration method thereof
US10616542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2018 |
| Grant date | Apr 7, 2020 |
| Priority date | — |
| Expiry date | Feb 12, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multi-dimensional image projection apparatus is provided. The multi-dimensional image projection apparatus includes an image projector and an image-processing circuit. The image-processing circuit is configured to receive an input image, and perform a linearity transformation process and a first inverse image warping process on the input image according to sensor information about the multi-dimensional image projection apparatus relative to the projection surface to generate a first image. The image-processing circuit performs a matrix transformation process and a second inverse image warping process on the first image according to the sensor information to generate a second image, and generate an output image according to the second image. The image projector projects the output image onto the projection surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.