Method for processing ultrasonic echo signals of both directiona

Details Method for processing ultrasonic echo signals of both directiona Method for processing ultrasonic echo signals of both directiona

1981-05-15

1983-10-04

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

128660, G01N 2900

Patent

active

044071639

ABSTRACT:
In an exemplary embodiment, the processing techniques of computerized x-ray tomography are applied to improve resolution transverse to the depth direction, for example with the use of compound ultrasonic scanning. In this way, an improved preliminary image for representing non-directionally scattering image points is attained. The ultrasonic echo signals are also processed to provide a preliminary image based predominantly or exclusively on directionally reflecting image points. The respective preliminary images for each image point or point region are then suitably combined to provide a stored ultrasonic image capable of display of the scanned region of improved accuracy, resolution, and freedom from noise.

REFERENCES:
patent: 4021771 (1977-05-01), Collins et al.
patent: 4106346 (1978-08-01), Matzuk
patent: 4322974 (1982-04-01), Abele et al.

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