Nonparametric imaging tracker

Details Nonparametric imaging tracker Nonparametric imaging tracker

1987-08-13

1989-09-19

Tarcza, Thomas H.

Image analysis

Histogram processing

For setting a threshold

358126, 358125, G06K 968

Patent

active

048688711

ABSTRACT:
A nonparametric imaging tracker is disclosed that first declares (10) a reference subimage comprising a plurality of image pixels, each pixel having a numerical light intensity level. The tracker then finds (12) a reference distribution of intensity levels in the reference subimage. A plurality of candidate subimages each having a plurality of pixels are then acquired (20). The intensity level distribution of each candidate subimage is compared to the reference distribution, and a statistic for each candidate subimage is computed based on this comparison (26, 28). One of the candidate subimages is then selected based on the value of its statistic (30, 36, 40). A preferred comparison and statistic calculation sequence includes the Kolmogorov-Smirnov test.

REFERENCES:
patent: 4364089 (1982-12-01), Woolfson
patent: 4405940 (1983-09-01), Woolfson et al.
patent: 4739401 (1988-04-01), Sacks et al.
Schau, H. C., "Kolmogorov-Smirnov Test in Image Analysis", Optical Engineering, vol. 20, #2, 3/81.

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