Image signal processing circuit for ultrasonic imaging apparatus

Details Image signal processing circuit for ultrasonic imaging apparatus Image signal processing circuit for ultrasonic imaging apparatus

1990-03-01

1991-10-29

Boudreau, Leo H.

Measuring and testing

Vibration

By mechanical waves

382 6, 12866001, G01N 2900

Patent

active

050605151

ABSTRACT:
An image signal processing circuit for an ultrasonic imaging apparatus includes a frame correlation circuit for performing, in accordance with a predetermined correlation coefficient, a frame correlation process for an ultrasonic frame image signal output from an ultrasonic transmitter/receiver circuit, and a correlation coefficient output circuit for outputting a frame correlation coefficient corresponding to a difference between a current input frame image signal and an immediately preceding frame image signal, i.e., a coefficient which decreases as the difference increases to the frame correlation circuit.

REFERENCES:
patent: 4750367 (1988-06-01), Bernatets
patent: 4785818 (1988-11-01), Hardin

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