Efficient algorithm for projecting world points to a rolling shutter image
US11977167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2020 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Dec 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/51
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved, efficient method for mapping world points from an environment (e.g., points generated by a LIDAR sensor of an autonomous vehicle) to locations (e.g., pixels) within rolling-shutter images taken of the environment is provided. This improved method allows for accurate localization of the world point in a rolling-shutter image via an iterative process that converges in very few iterations. The method poses the localization process as an iterative process for determining the time, within the rolling-shutter exposure period of the image, at which the world point was imaged by the camera. The method reduces the number of times the world point is projected into the normalized space of the camera image, often converging in three or fewer iterations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.