Apparatus and method for determining stereo disparity based on two-path dynamic programming and GGCP
US7570804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2005 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jun 21, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/754
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided is an apparatus and method for determining stereo disparity based on two-path dynamic programming and GGCP. The apparatus includes a pre-processing unit for analyzing texture distribution of an input image by using a Laplacian of Gaussian (LOG) filter and dividing the input image into a homogeneous region and a non-homogeneous region; a local matching unit for determining candidate disparities to be included in an each pixel of all pixels; a local post-processing unit for removing candidate disparities in a pixel of low reliability by performing a visibility test betweens candidate disparities in each pixel to improve the reliability of the candidate disparity; and a global optimizing unit for determining a final disparity for candidate disparities in an each pixel by performing a dynamic programming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.