Object detection method, information processing device, and storage medium
US9734416B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2016 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Mar 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30261
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An object detection method includes extracting an object candidate by grouping a plurality of characteristic points from two images acquired at different times by a camera; calculating, for each of characteristic points included in the object candidate, an observation flow amount indicating an amount of positional shift on the two images and a virtual road surface flow amount indicating an amount of positional shift on the two images while assuming that the characteristic point is located on a road surface; generating, for each of the characteristic points, a flow difference distribution of the object candidate by calculating a difference between the observation flow amount and the virtual road surface flow amount; and determining whether the object candidate is an object existing on and protruding from the road surface by comparing the flow difference distribution with a plurality of flow difference distribution models generated for predicted inclined states of the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.