Depth image conversion apparatus and method
US9047681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2012 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Nov 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided are an apparatus and method for converting a low-resolution depth image to a depth image having a resolution identical to a resolution of a high-resolution color image. The depth image conversion apparatus may generate a discrete depth image by quantizing a depth value of an up-sampled depth image, estimate a high-resolution discrete depth image by optimizing an objective functions of the discrete depth image based on the high-resolution color image and an up-sampled depth border, and convert the up-sampled depth image to a high-resolution depth image by filtering the up-sampled depth image when a difference between discrete depth values of neighboring pixels in the high-resolution discrete depth image is less than a predetermined threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.