Display apparatus, scanner, and non-transitory computer readable medium
US10606545B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2018 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | May 21, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20224
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A display apparatus includes a diffuse reflection image acquiring unit, a specular reflection image acquiring unit, a difference image acquiring unit, a reflectance distribution function calculating unit, and a display. The diffuse reflection image acquiring unit acquires a diffuse reflection image of an object surface. The specular reflection image acquiring unit acquires a specular reflection image of the object surface. The difference image acquiring unit acquires a difference image between the diffuse reflection image and the specular reflection image. The reflectance distribution function calculating unit calculates a reflectance distribution function of the object surface by using the diffuse reflection image and the difference image. The display displays a reflection color of the object surface in accordance with a change of orientation of the object surface by using the reflectance distribution function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.