Method for estimating free space using a camera system
US9305219B2 · kind B2 · utility
76Cited by
4References
21Claims
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Key dates
| Filing date | Jan 23, 2014 |
| Grant date | Apr 5, 2016 |
| Priority date | — |
| Expiry date | Jun 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30252
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method estimates free space near a moving object from a sequence of images in a video acquired of a scene by a camera system arranged on the moving object by first constructing a one-dimensional graph, wherein each node corresponds to a column of pixels in the image. Features are determined in the image, and an energy function is constructed on the graph based on the features. Using dynamic programming, the energy function is maximized to obtain the free space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.