Subject tracking apparatus

Details Subject tracking apparatus Subject tracking apparatus

1995-05-25

1996-09-24

Chin, Tommy P.

Television

Object tracking

348208, 348407, H04N 5225

Patent

active

055595510

ABSTRACT:
A subject tracking apparatus in which the target is tracked further stably by effectively eliminating the erroneous judgment due to the effects from the object which resembles the target, the luminance change, and objects having different shapes. Each of the R-Y signal and the B-Y signal at setting the feature of target is modeled by the luminance, so as to detect the features without concerning the hue to the luminance change. Also, the R-Y signal and the B-Y signal are directly modeled, so as to detect the features in the same way regarding the subject with colorless since hue has no effect on it. Since it becomes unnecessary to adjust the parameter strictly by modeling in regard to the permissible error, the target can be tracked stably even the luminance changes.

REFERENCES:
patent: 5187574 (1993-02-01), Kosemura et al.
patent: 5196688 (1993-03-01), Hesse et al.
patent: 5196929 (1993-03-01), Miyasaka
patent: 5204749 (1993-04-01), Toyama et al.
patent: 5214504 (1993-05-01), Toriu et al.
patent: 5280530 (1994-01-01), Trew et al.
patent: 5291300 (1994-03-01), Ueda
patent: 5355163 (1994-10-01), Tomitaka

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