Image analysis – Histogram processing – For setting a threshold
Patent
1990-03-20
1991-09-17
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
73602, 73620, 73626, 1286601, 36441325, 367 45, G06K 900, G01V 100
Patent
active
050502263
ABSTRACT:
An ultrasonic echographic imaging device for two dimensions (x, y), includes an adaptive filter for reducing the interference noise in the images obtained. A first circuit differentiates the signal (E(x, y)) applied to the adaptive filter and a second circuit forms the weighted sum of the signal (S(x, y)) leaving the adaptive filter (200) and the signal (dE(x, y)/dy) output of the differentiating circuit.
REFERENCES:
patent: 4771470 (1990-09-01), Geiser et al.
patent: 4783839 (1988-11-01), Bamber
PCT Published Application WO 86/03594, Jeffrey Bamber, Jun. 19, 1986.
Improved Techniques in Ultrasonic Cross Sectional Echography by G. Kossoff, Ultrasonics, Sep. 1972, pp. 221-227.
Kuan, Sawshuk, Strand, & Chavel, "Adaptive Restoration of Images with Speckle", IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-35, No. 3, Mar. 1987, pp. 373-383.
Kossoff, G., "Improved Techniques in Ultrasonic Cross Sectional Echography", Ultrasonics, Sep. 1972, pp. 221-227.
Burckhardt, Christoph B., "Speckle in Ultrasound B-Mode Scans", Jan. 1978 IEEE Transactions on Sonics and Ultrasonics, vol. SU-25, No. 1, pp. 1-6.
Fink, M., "Imagerie Ultrasonore", Revue de Physique Appliquee, 18 (1983) pp. 527-556.
D. T. Kuan, A. A. Sawchuk, T. C. Strand & P. Chavel, "Adaptive Restoration of Images with Speckle", IEEE Transactions on Acoustics, Speech and Signal Processing, vol. ASSP-35, No. 3, Mar. 1987, pp. 373-383.
Boudreau Leo H.
Squire William
U.S. Philips Corporation
LandOfFree
Ultrasonic echographic imaging device utilizing an improved adap does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultrasonic echographic imaging device utilizing an improved adap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrasonic echographic imaging device utilizing an improved adap will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1923758