De-aliasing depth images
US8514269B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2010 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Aug 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10028
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are provided for de-aliasing depth images. The depth image may have been generated based on phase differences between a transmitted and received modulated light beam. A method may include accessing a depth image that has a depth value for a plurality of locations in the depth image. Each location has one or more neighbor locations. Potential depth values are determined for each of the plurality of locations based on the depth value in the depth image for the location and potential aliasing in the depth image. A cost function is determined based on differences between the potential depth values of each location and its neighboring locations. Determining the cost function includes assigning a higher cost for greater differences in potential depth values between neighboring locations. The cost function is substantially minimized to select one of the potential depth values for each of the locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.