Object information acquiring apparatus, information processing apparatus and object information acquiring method
First Claim
1. An object information acquiring apparatus comprising:
- a plurality of receiving elements that receive an acoustic wave that has propagated from an object, and that convert the acoustic wave to an electric signal;
an adaptive beamformer that performs adaptive beamforming of adjusting reception directionality using the electric signal;
a delay-and-sum beamformer that performs delay-and-sum beamforming having preset directionality using the electric signal; and
at least one CPU and memory, the at least one CPU and memory cooperating to function as an amplitude modulator that performs amplitude modulation of modulating an output signal of one of the adaptive beamformer and the delay-and-sum beamformer, using an output signal of the other one of the adaptive beamformer and the delay-and-sum beamformer, andthe at least one CPU and memory cooperating to function as a generator that generates, on the basis of a signal outputted by the amplitude modulator, image data on the interior of the object.
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Accused Products
Abstract
An object information acquiring apparatus is provided that includes: a plurality of receiving elements which receive an acoustic wave that propagates from an object, and which convert the acoustic wave to a reception signal; an adaptive beamformer that performs adaptive beamforming of adjusting reception directionality in accordance with the reception signal in use of the reception signal; a delay-and-sum beamformer that performs delay-and-sum beamforming having preset directionality in use of the reception signal; an amplitude modulator that uses one output signal of one of the adaptive beamformer and the delay-and-sum beamformer, to perform amplitude modulation on an output signal of the other one of the beamformers; and a generator that, on the basis of a signal outputted by the amplitude modulator, generates image data on the interior of the object.
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Citations
33 Claims
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1. An object information acquiring apparatus comprising:
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a plurality of receiving elements that receive an acoustic wave that has propagated from an object, and that convert the acoustic wave to an electric signal; an adaptive beamformer that performs adaptive beamforming of adjusting reception directionality using the electric signal; a delay-and-sum beamformer that performs delay-and-sum beamforming having preset directionality using the electric signal; and at least one CPU and memory, the at least one CPU and memory cooperating to function as an amplitude modulator that performs amplitude modulation of modulating an output signal of one of the adaptive beamformer and the delay-and-sum beamformer, using an output signal of the other one of the adaptive beamformer and the delay-and-sum beamformer, and the at least one CPU and memory cooperating to function as a generator that generates, on the basis of a signal outputted by the amplitude modulator, image data on the interior of the object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An information processing apparatus that generates image data on the interior of an object on the basis of an electric signal that is outputted by a plurality of receiving elements that receive an acoustic wave that propagates from the object, the information processing apparatus comprising:
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an adaptive beamformer that performs adaptive beamforming of adjusting reception directionality using the electric signal; a delay-and-sum beamformer that performs delay-and-sum beamforming having preset directionality using the electric signal; and at least one CPU and memory, the at least one CPU and memory cooperating to function as an amplitude modulator that performs amplitude modulation of modulating an output signal of one of the adaptive beamformer and the delay-and-sum beamformer, using an output signal of the other one of the adaptive beamformer and the delay-and-sum beamformer. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. An object information acquiring method comprising:
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a step of receiving, by a plurality of receiving elements, an acoustic wave that propagates from an object, and converting the acoustic wave to an electric signal; an adaptive beamforming step of performing adaptive beamforming of adjusting reception directionality using the electric signal; a delay-and-sum beamforming step of performing delay-and-sum beamforming having preset directionality using the electric signal; an amplitude modulation step of performing amplitude modulation of modulating an output signal obtained in one of the adaptive beamforming step and the delay-and-sum beamforming step, using an output signal obtained in the other one of the adaptive beamforming step and the delay-and-sum beamforming step; and a generation step of, on the basis of the amplitude-modulated signal, generating image data on the interior of the object. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification