Apparatus and method to obtain intrinsic still and video images without the use of filters or dichroic mirrors
US10969523B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2020 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | May 30, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10016
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method to generate intrinsic images without barrier filters and dichroic mirrors is provided. The method involves acquisition of an image of a focused field of view and a diffused image of the same field of view. The diffused image is obtained by placing a translucent material in the path between a camera and the field of view. The translucent material permits transmission of the illumination energy while diffusing the spatial details of the field of view, thus producing a featureless image of illumination intensities. The focused and diffused images are then processed pixel-by-pixel by to generate intrinsic images free of irrelevant illumination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.