Object information acquiring apparatus and object information acquiring method
First Claim
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1. An object information acquiring apparatus, comprising:
- a receiver configured to convert an acoustic wave generated from an object irradiated with light into a received signal and output the received signal in a time series;
a normalizer configured to generate a Hilbert-transform signal by performing Hilbert-transform on the received signal and generate a normalized signal by calculating a ratio between an intensity of the received signal and an absolute value of a complex signal which represents the received signal as real part and the Hilbert-transform signal as imaginary part; and
a processor configured to generate, based on the normalized signal, first image data.
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Abstract
Disclosed is an object information acquiring apparatus including: a receiver that includes a plurality of elements and converts an acoustic wave generated from an object irradiated with light into a received signal, and outputs the received signal in a time series; a normalizer that generates a normalized signal by normalizing the intensity of the received signal; and a processor that generates, from the normalized signal, first image data that indicates the distribution of property information inside the object.
8 Citations
18 Claims
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1. An object information acquiring apparatus, comprising:
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a receiver configured to convert an acoustic wave generated from an object irradiated with light into a received signal and output the received signal in a time series; a normalizer configured to generate a Hilbert-transform signal by performing Hilbert-transform on the received signal and generate a normalized signal by calculating a ratio between an intensity of the received signal and an absolute value of a complex signal which represents the received signal as real part and the Hilbert-transform signal as imaginary part; and a processor configured to generate, based on the normalized signal, first image data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An object information acquiring method, comprising the steps of:
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generating a Hilbert-transform signal by performing Hilbert-transform on a received signal in a time series obtained by receiving an acoustic wave generated from an object irradiated with light; generating a normalized signal by calculating a ratio between an intensity of the received signal and an absolute value of a complex signal which represents the received signal as real part and the Hilbert-transform signal as imaginary part; and generating, based on the normalized signal, first image data.
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13. An object information acquiring apparatus, comprising:
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a receiver configured to convert an acoustic wave generated from an object irradiated with light into a received signal and output the received signal in a time series; a normalizer configured to generate an envelope signal of the received signal and generate a normalized signal by calculating a ratio between the received signal and the envelope signal; and a processor configured to generate, based on the normalized signal, first image data. - View Dependent Claims (14, 15, 16, 17)
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18. An object information acquiring method, comprising:
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generating an envelope signal of a received signal obtained by receiving an acoustic wave generated from an object irradiated with light; generating a normalized signal by calculating a ratio between the received signal and the envelope signal; and generating, based on the normalized signal, first image data.
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Specification