Method for acquiring distance from moving body to at least one object located in any direction of moving body by utilizing camera-view depth map and image processing device using the same
US11704825B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2022 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Jul 15, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0092
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for acquiring a distance from a moving body to an object located in any direction of the moving body includes steps of: an image processing device (a) instructing a sweep network to project pixels of images, generated by cameras covering all directions of the moving body, onto main virtual geometries and apply 3D concatenation operation thereon to generate an initial 4D cost volume, (b) generating a final main 3D cost volume therefrom through a cost volume computation network, and (c) generating sub inverse distance indices corresponding to inverse values of sub separation distances between a sub reference point and sub virtual geometries, and main inverse distance indices corresponding to inverse values of main separation distances between a main reference point and the main virtual geometries, by using a sub cost volume and the final main 3D cost volume, to thereby acquire the distance to the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.