Image tracking apparatus

Details Image tracking apparatus Image tracking apparatus

1996-10-11

1998-01-06

Boudreau, Leo

Image analysis

Applications

Target tracking or detecting

382254, 382275, 348149, 348170, G06K 900, G06K 940

Patent

active

057063621

ABSTRACT:
An image tracking apparatus includes a video camera 10 for forming an image of a target vehicle and for producing image signals at predetermined time intervals, a first memory 5A for storing image signals, a window setting switch 9 for setting a tracking window on the image signals which were stored in the first memory, a second memory 6A for storing, as reference image signals, the image signals on which the tracking window has been set, a device 11 for detecting whether or not any disturbance has been introduced into the image signals stored in the first memory, and a device 12 for correcting by interpolation the image signals stored in the first memory to reduce the influence of any disturbances. A window updating device updates the tracking window in accordance with a comparison between the reference image signals stored in the second memory and the image signals stored in the first memory, or, when a disturbance has been introduced, in accordance with a comparison between the reference image signals stored in the second memory and the corrected image signals.

REFERENCES:
patent: 4661853 (1987-04-01), Roeder et al.
patent: 5023712 (1991-06-01), Kajiwara
patent: 5151945 (1992-09-01), Lee et al.
patent: 5208874 (1993-05-01), Omura
patent: 5243418 (1993-09-01), Kuno et al.
patent: 5276519 (1994-01-01), Richards et al.
patent: 5280530 (1994-01-01), Trew et al.

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