Object tracking apparatus, object tracking method and recording medium
US7064776B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 19, 2002 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Nov 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/7865
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An object movement tracking apparatus and its method tracks an object with an unknown initial position and which object is continually moving, the apparatus for recovering a tracking process even when the tracking has failed and includes an observing device such as a video camera for observing a scene at a video frame rate. Time-sequentially acquired image data from the observing device are stored in an image memory device and the data processed in parallel. During data processing, an object recognition module selects a frame memory based on predetermined information. An estimated value of position/posture of the object are calculated from the image data and transmitted. A movement tracking module receives transmitted data from the object recognition module, replacing a current frame with a next frame and waits until image data in the next frame are inputted. When image data inputting is finished, the up dated replacement in position/posture of the object and its evaluated value are calculated by comparing image data and the object model. The system mode is changed and updated based on the obtained evaluated value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.