Method and means or dynamically weighted temporal averaging of p

Details Method and means or dynamically weighted temporal averaging of p Method and means or dynamically weighted temporal averaging of p

1986-06-30

1988-11-22

Jaworski, Francis J.

Surgery

Truss

Pad

358112, A61B 1000

Patent

active

047858184

ABSTRACT:
Pixel data stored in a display memory of an ultrasonic scanning system is updated in response to weighted new pixel data generated from a reflected ultrasonic wave averaged with weighted stored pixel data. A measure of difference between the new pixel data and the stored pixel data is obtained, and the weighting factor for the new pixel data increases as a function of the difference while the weighting factor for the stored data decreases as a function of the difference whereby small differences in the signals due to noise are suppressed while large differences in the pixel values due to fast moving echogenic targets such as a heart valve are enhanced. The weighting of the two pixel values can further include a factor depending on the selected display dynamic range of the ultrasonic scanner. The weighted values of the pixels are stored in memories that are addressed by the pixel value and the measure of difference between the present intensity value and the stored intensity value, and the outputs of the memories are then combined such as by averaging to obtain an updated pixel value for storage in the image memory.

REFERENCES:
patent: 4064530 (1977-12-01), Kaiser et al.
patent: 4367490 (1983-01-01), Riederer
patent: 4375671 (1983-01-01), Engle
patent: 4394684 (1983-07-01), Verhoeven
patent: 4636850 (1987-01-01), Stewart
Ophir, J. et al, "DSC's in Diagnostic Ultrasound Imgaging", Proc. of the IEEE, vol. 67, No. 4 (Apr. 1979), pp. 654-664.
Ostro, P. T. et al, "Digital UTS Imaging with uP Manipulation" JMET, vol. 2, No. 5, Sept. 1978, pp. 234-238.

Affiliated with

Also associated with

Rating

Method and means or dynamically weighted temporal averaging of p 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 and means or dynamically weighted temporal averaging of p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and means or dynamically weighted temporal averaging of p will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-429373