Digital brightness detector

Details Digital brightness detector Digital brightness detector

1995-06-06

1996-11-12

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

With display or signaling

378 988, H05G 164

Patent

active

055747647

ABSTRACT:
A brightness detector is used to control the x-ray exposure and the displayed image level in a diagnostic x-ray imaging system. Initially, a region of interest of an image is specified. The average pixel value within the specified region of interest of the image is then found, ignoring regions below a preselected low signal level threshold. Finally, the average pixel value is fed back to the x-ray generator to control the x-ray exposure. The average pixel value is also used to determine a scaling factor to be applied to the image in order to maintain an optimum brightness level when the desired x-ray exposure cannot be attained.

REFERENCES:
patent: 4742230 (1988-05-01), Kiri
patent: 4868651 (1989-09-01), Chou et al.
patent: 4905265 (1990-02-01), Cox et al.
patent: 5194736 (1993-03-01), Meulenbrugge et al.
patent: 5485501 (1996-01-01), Aichinger

Affiliated with

Also associated with

Rating

Digital brightness detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital brightness detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital brightness detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-569265