Patent ID: 11896428
Assignee: DUKE UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 8:
9. A method comprising:
outputting, by a transducer, a first ultrasonic signal that bounces off a target and produces an ultrasonic echo signal;
receiving, by the transducer, the ultrasonic echo signal;
converting, by the transducer, the ultrasonic echo signal to an electrical signal that spans a frequency range, the electrical signal representing a first image of the target;
obtaining a set of two or more sub-signals from the electrical signal, wherein each of the sub-signals spans a respective frequency sub-range of the frequency range;
computing, for each of the sub-signals, a respective plurality of spatial coherence metric values,
determining respective values of a conspicuity metric for each of the sub-signals based on the respective plurality of spatial coherence metric values;
selecting a frequency sub-range of the respective frequency sub-ranges based on the conspicuity metric values; and
generating a second ultrasonic signal based on the selected frequency sub-range, the second ultrasonic signal for obtaining at least one of a second image of the target or an image of a different target.