Method and apparatus for correcting error of optical sensor, apparatus for estimating bio-information
US11579076B2 · kind B2 · utility
0Cited by
7References
18Claims
0Family size
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Key dates
| Filing date | Mar 30, 2021 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Mar 30, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/1765
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a method of correcting an error of an optical sensor including a light source and an image sensor, the method including emitting light to a material by driving the light source, acquiring an image of the material by the image sensor, and correcting an error of a distance between the light source and the image sensor of the optical sensor based on a gradation of the acquired image of the material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.