Object movement estimator using one-dimensional optical flow
US5717792A · kind A · utility
7Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Dec 15, 1995 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Dec 15, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An object movement estimator (400) predicts optical flow by estimating changes in sensed images using one-dimensional correlations. Sensed image portions are stored at a first instant of time and compared with sensed image portions at a second instant of time. An optimal flow is estimated by performing a one-dimensional correlation of the sensed image portions at the first and second instants of time, and a time-to-contact is estimated based on the predicted optical flow thus obtained.
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