Target light detection

Details Target light detection Target light detection

1996-12-18

1998-09-29

Rogers, Scott

Image analysis

Applications

Target tracking or detecting

382218, 382274, 2202033, 2202034, 2202036, G06K 920, G01C 2102

Patent

active

058155902

ABSTRACT:
A method of determining the existence of a target light source comprising progressively receiving successive pixel intensity values row by row and column by column of a scanned array of a light detector, comparing each pixel intensity value as it is received with upper and lower thresholds, declaring successive rows of pixels as dark, bright, edge or null depending on whether each row of the intensity values above, between and below the thresholds meets predetermined criteria, declaring a light source as detected in the event an array of pixels exceeding the lower threshold are completely surrounded by pixels which are of lower intensity than the lower threshold, and storing a signal indicating detection of a light source in a memory with a location identifying an address of the array in which the light source was declared as detected.

REFERENCES:
patent: 5260557 (1993-11-01), Kissh et al.
patent: 5384860 (1995-01-01), Gardemal, Jr. et al.

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