Method for stereo image object detection
US5937079A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Sep 5, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2013/0085
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a method for detecting and tracking objects by stereo image evaluation a part of structure class images is initially generated from a recorded stereo image pair. Differences in brightness of selected pixels in the environment are determined for each pixel as digital values, which are combined to form a digital value group, with identical groups defining their own structure classes. Structure classes which lack a brightness change along the epipolar line are discarded. Corresponding disparity values are then determined for the pixels in the other structure classes and are collected in a disparity histogram with a given frequency increment. The pixel group that belongs to a given grouping point area of the histogram is then interpreted as an object to be detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.