Temporal high dynamic range imaging using time-of-flight cameras
US10999524B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2018 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jun 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/271
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A time-of-flight camera may be used to generate depth images of a scene, where the scene includes retroreflective materials. The time-of-flight camera may capture first sensor data by illuminating the scene at a first energy level, and by exposing a sensor for a first duration. If portions of the sensor are saturated by light reflected from retroreflective materials, corrupted pixels are detected within the first sensor data. A second set of sensor data may be captured by illuminating the scene at a second energy level, or by exposing the sensor for a second duration. The corrupted pixels may be identified and masked from the first sensor data, which may be blended with corresponding portions of the second sensor data to generate a depth image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.