Stereo image depth map generation device and method
US9761003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2016 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Jun 1, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0081
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A stereo image depth map generation device that includes a depth calculation module, a first order bilateral filter module and a second order bilateral filter module is provided. The depth calculation module receives a reference image including a plurality of reference pixels and a target image including a plurality of target pixels to generate an initial depth map according to pixel differences of the reference pixels and the target pixels. The first order bilateral filter module receives the initial depth map to perform a first order bilateral filtering calculation according to the initial depth map and the initial depth map itself to generate an averaged depth map. The second order bilateral filter module receives the averaged depth map and the target image to perform a second order bilateral filtering calculation according to the averaged depth map and the target image to generate a refined depth map.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.