Time-of-flight depth image processing systems and methods
US11209528B2 · kind B2 · utility
1Cited by
3References
21Claims
0Family size
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Key dates
| Filing date | Oct 15, 2018 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Oct 15, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/56
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Time of Flight (ToF) depth image processing methods. Depth edge preserving filters are disclosed with superior performance to standard edge preserving filters applied to depth maps. In particular, depth variance is estimated and used to filter while preserving depth edges. In doing so, filter strength is calculated which can be used as an edge detector. A confidence map is generated with low confidence at pixels straddling a depth edge, and which reflects the reliability of the depth measurement at each pixel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.