Method of recognizing irradiation field, and method of adjusting

Details Method of recognizing irradiation field, and method of adjusting Method of recognizing irradiation field, and method of adjusting

1990-03-26

1991-05-14

Berman, Jack I.

Radiant energy

Automatic/serial detection of similar sources

H04N 532, G01N 2304

Patent

active

050158538

ABSTRACT:
In a method of recognizing an irradiation field, image signals at respective positions on a recording medium are detected based on image information detected from the recording medium, and X and Y axis are set along two adjacent sides of a contour of a rectangular irradiation field on the recording medium. The image signals are added up in the X and Y axis directions respectively, and Y axis positions at which levels of added-up signals in the X axis direction are equal to a threshold value and X axis positions at which levels of added-up signals in the Y axis direction are equal to the threshold value are detected. A region surrounded by straight lines passing through these positions along the X and Y axes is recognized as the irradiation field. In the method of adjusting image processing conditions, the image processing conditions are adjusted based on the image information inside of the irradiation field thus recognized.

REFERENCES:
patent: 4258264 (1981-03-01), Kotera et al.
patent: 4527060 (1985-07-01), Suzuki et al.
patent: 4682028 (1987-07-01), Tanaka et al.
patent: 4804842 (1989-02-01), Nakajima
patent: 4806759 (1989-02-01), Funashachi
Young et al, Handbook of Pattern Recog. & Image Process, Academic Press (1986) pp. 193, 200.

Affiliated with

Also associated with

Rating

Method of recognizing irradiation field, and method of adjusting does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of recognizing irradiation field, and method of adjusting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of recognizing irradiation field, and method of adjusting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1650319