Enhancing the perceptibility of barely perceptible images

Details Enhancing the perceptibility of barely perceptible images Enhancing the perceptibility of barely perceptible images

1980-12-31

1983-09-20

Curtis, Marshall M.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340723, 340791, 351201, 351237, G09G 300

Patent

active

044059205

ABSTRACT:
Pictures, images, etc., in which a pattern or object to be observed is obscured by "noise", such as certain pictures or images obtained by video transmissions, aerial, X-ray or fluorescent photography or ultrasonic or similar techniques, are given dramatically greater perceptibility by imparting dynamics, or apparent activity and/or apparent motion, to the picture or to parts of the picture. This is accomplished by exhibiting the picture or parts of the picture in flashes of light at a rate of about 0.2 to 10 Hz, or by imparting motion to the picture or to selected elements within the picture at a corresponding velocity, or by flashing a sequence of slightly different pictures or different versions of the same picture within a corresponding cycle duration. The perceptibility is further improved by adding certain auxiliary lines or patterns either to the stationary picture or to some of the pictures in the sequence of pictures.

REFERENCES:
patent: 2387442 (1945-10-01), Hamilton
patent: 3739347 (1973-06-01), Forsberg
patent: 3821730 (1974-06-01), Carey et al.
patent: 3883234 (1975-05-01), Lynn et al.
patent: 3967266 (1976-06-01), Roy
patent: 3992087 (1976-11-01), Flom
patent: 4012128 (1977-03-01), Regan
patent: 4135502 (1979-01-01), Peck
patent: 4293200 (1981-10-01), Dobson
patent: 4295135 (1981-10-01), Sukonick
patent: 4296930 (1981-10-01), Fredericksen
N. Weisstein and C. S. Harris, Science, vol. 186, pp. 752-755 (Nov. 22, 1974).

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