Imaging apparatuses, systems and methods
US11353320B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 4, 2020 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Sep 18, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/55
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An image sensor and well structure associated with and extending away from the surface of the image sensor are provided in various apparatuses, methods, and systems for determining the position of a light emitter located in object space. An exemplary method includes (i) providing the image sensor and structure associated therewith, the structure defining a field of view for each pixel within the array of pixels; (ii) determining a light intensity value for photoactivated pixels receiving light from the light emitter; (iii) identifying a first photoactivated pixel having a local maximum of light intensity; (iv) calculating a perpendicular distance between the first photoactivated pixel and the light emitter; and (v) constructing the position of the light emitter based on a position of the first photoactivated pixel in the array of pixels and the perpendicular distance between the first photoactivated pixel and the light emitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.