Corresponding point searching method and distance detection device
US10043106B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 2, 2016 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Jul 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A corresponding point searching method searches corresponding points in plural images, acquired by in-vehicle cameras, for each pixel in a reference image by using a predetermined first method, for example, the Viterbi algorithm. The method searches corresponding points in the plural images for each pixel in the reference image by using a predetermined second method, for example, an optical flow method. The method detects whether or not a search accuracy of the corresponding points in each region divided in the reference image obtained by the predetermined first method is not less than a reference value. When not less than the reference value, the method selects the corresponding points obtained by the predetermined first method. When less than the reference value, the searching method selects the corresponding points obtained by the predetermined second method. The searching method provides the corresponding points between the plural images with a high accuracy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.