Gradual fallback from full parallax correction to planar reprojection
US11032530B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2020 |
| Grant date | Jun 8, 2021 |
| Priority date | — |
| Expiry date | May 15, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Improved techniques for generating depth maps are disclosed. A stereo pair of images of an environment is accessed. This stereo pair of images includes first and second texture images. A signal to noise ratio (SNR) is identified within one or both of those images. Based on the SNR, which may be based on the texture image quality or the quality of the stereo match, there is a process of selectively computing and imposing a smoothness penalty against a smoothness term of a cost function used by a stereo depth matching algorithm. A depth map is generated by using the stereo depth matching algorithm to perform stereo depth matching on the stereo pair of images. The stereo depth matching algorithm performs the stereo depth matching using the smoothness penalty.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.