Canon Kabushiki Kaisha

Yasufumi Asao

Masahiro Terada

Kazuhiko Fukutani

Takashi Moriyama

Takao Nakajima

Yukio Hanyu

Takeshi Togano

Ryuichiro Isobe

Katsumi Nakagawa

Shosei Mori

Hirohide Munakata

Koichi Sato

Hideo Mori

Nobuhiro Ito

Yasuhiro Someda

Yasuaki Takeda

Yasuyuki Watanabe

Kenichi Nagae

Keishi Saito

Koji Noguchi

Kohei Nagayama

Shigeru Ichihara

Hironao Tanaka

Shinjiro Okada

Akira Tsuboyama

Yutaka Inaba

Yasushi Shimizu

Toru Den

Masanobu Asaoka

Ikuo Nakazawa

Ryuichi Nanaumi

Yohei Hashizume

Shinichi Nakamura

Takao Takiguchi

Hiroshi Matsuda

Kiyohide Satoh

Takaaki Endo

Kazunori Katakura

Seishi Miura

Hideaki Takao

Hirokatsu Miyata

Syuji Yamada

Naoya Nishida

Takuji Oishi

Katsuhiro Watanabe

Koichi Tanji

Katsumi Arai

Mie Okano

Provided are an ultrasonic probe capable of forming an image without degradation even when the frequency band of a photoacoustic wave and the frequency band of an ultrasonic wave used in ultrasonography are separated from each other, and an inspection object imaging apparatus including the ultrasonic probe. The ultrasonic probe includes a first array device capable of transmitting and receiving an ultrasonic wave; and a second array device capable of receiving a photoacoustic wave. The first array device includes plural electromechanical transducers arranged in a direction perpendicular to a scanning direction, the second array device includes plural electromechanical transducers arranged in a two-dimensional manner, and the first array device and the second array device are provided on the same plane and in the scanning direction.

Ultrasonic probe, and photoacoustic-ultrasonic system and inspection object imaging apparatus including the ultrasonic probe

Provided is an object information acquiring apparatus including: a light source; a controller that controls irradiation of light from the light source; a detector that receives an acoustic wave generated from an object onto which light from the light source is irradiated; a processor that generates characteristic information inside the object using the acoustic wave received by the detector; and an acquirer that acquires the shape of the object, wherein the controller controls an irradiation area when light is irradiated from the light source onto the object, based on the shape of the object acquired by the acquirer.

System and method for preventing directly irradiating acoustic wave detector for photoacoustic imaging

An image processing apparatus according an exemplary embodiment of the present invention estimates for a plurality of positions in a target image an estimated value of an error in registration for acquiring a third three-dimensional image by deforming at least one of a first three-dimensional image of a subject and a second three-dimensional image, one of the three-dimensional images being the target image, designates a cross section in the target image, acquires a statistical value of the error in the designated cross section based on the estimated value estimated for a plurality of positions in the cross section, and displays the statistical value.

Image processing apparatus, image processing system, image processing method, and storage medium

An object information acquiring apparatus, comprises a light irradiating unit configured to irradiate an object with light; a probe configured to receive an acoustic wave generated from the object and convert into an electrical signal; a characteristic information acquiring unit configured to acquire characteristic information relating to the object based on the electrical signal; an area information acquiring unit configured to acquire information relating to a reachable area of the light; a location detecting unit configured to acquire an operator location; and a determining unit configured to determine whether the operator location is in a first state where the operator location overlaps with the reachable area of the light or a second state where the operator location does not overlap with the reachable area of the light.

Object information acquiring apparatus and information processing apparatus

An ultrasonic probe includes a light irradiating portion configured to radiate light for generating ultrasonic waves from a light absorber, an ultrasonic transducing portion configured to transduce the ultrasonic waves to an electric signal, and a light guide member configured to introduce light from a light source to the light irradiating portion. A light irradiating region of the light irradiating portion is included within an ultrasonic receiving region of the ultrasonic transducing portion.

Ultrasonic probe and inspection apparatus equipped with the ultrasonic probe

Use of an acoustic wave receiving apparatus which includes: a resonator including a first mirror on which measurement light is incident, a second mirror which is arranged to face the first mirror and on which acoustic waves from an object are incident, an acoustic wave reception layer interposed between the first mirror and the second mirror, and a compensation layer; and a detector for detecting a variation in an optical path length between the first mirror and the second mirror that occurs in response to deformation of the acoustic wave reception layer caused by incidence of the acoustic waves, wherein the variation in the optical path length due to a film thickness distribution of the acoustic wave reception layer is compensated by refraction in the compensation layer.

Acoustic wave receiving apparatus

There are provided a biological information imaging apparatus that can measure ultrasound generated from an optical absorber in a deep part of a subject living body with high sensitivity, and a method for analyzing biological information using the biological information imaging apparatus. The biological information imaging apparatus that detects ultrasound and images biological information, includes: a light source that irradiates the subject with light for generating ultrasound from an optical absorber existing in the subject; an ultrasound transmission unit that transmits focused ultrasound to a specific region where the optical absorber exists; and an ultrasound detection unit that detects an ultrasound synthesized signal due to interaction between ultrasound generated from the optical absorber that absorbs the light and the focused ultrasound transmitted to the specific region.

Biological information imaging apparatus and method for analyzing biological information

There is used an acoustic signal receiving apparatus including a wavelength-tunable light source for irradiating measurement light, a controller for controlling a wavelength of the measurement light, a Fabry-Perot probe having a first mirror on a side where the measurement light enters, a second mirror on a side where an elastic wave from an object enters, and a spacer film positioned between the first and second mirrors and deforms in response to the elastic wave, an array photosensor for detecting a reflected light amount of the measurement light by the Fabry-Perot probe, and a signal processor for acquiring an intensity of the incident elastic wave based on a change in the reflected light amount. The controller sweeps the wavelength of the measurement light, and the signal processor determines the wavelength based on the reflected light amount at each wavelength subjected to the sweep.

Acoustic signal receiving apparatus and imaging apparatus

A photoacoustic imaging apparatus performs imaging of an optical absorber. The photoacoustic imaging apparatus includes a light source, a detector configured to detect an acoustic wave generated from the optical absorber that has absorbed energy of light emitted from the light source, and a signal processing unit configured to form an image of the optical absorber. The signal processing unit stores information indicating whether a rate of change in pressure of the acoustic wave detected by the detector is positive or negative before performing a waveform process on the acoustic wave.

Photoacoustic imaging apparatus and photoacoustic imaging method

An acoustic wave measuring apparatus includes a light source for radiating a light having a wavelength component in wavelength areas, light filters arranged in a light path from the light source to a subject and each to shut off or transmit the light in one of the wavelength areas, a detector for detecting an acoustic wave generated by the radiation, a controller for generating conditions having different combinations of the wavelength components contained in the light, and a signal processor for calculating an optical absorption coefficient of the subject for the light in each wavelength area based on a pressure of the acoustic wave detected under each of the conditions and a strength of the radiated light for each wavelength area under conditions.

Acoustic wave measuring apparatus, acoustic wave imaging apparatus and method for controlling acoustic wave measuring apparatus

A biological information imaging method includes a first measurement step to measure an acoustic wave () generated by light () which is irradiated to a living body () from a light source () and which is absorbed by tissue () in the living body, a storage step to store first information obtained in the first measurement step, a second measurement step to measure an acoustic wave () generated by light () which is irradiated to the living body () from the light source () and which is absorbed by the tissue () in the living body, and a processing step to generate an image of information of the tissue in the living body by using second information obtained in the second measurement step, and the first information stored in the storage step.

Biological information imaging apparatus and biological information imaging method

When correcting the acoustic wave refraction occurring on the interface between mediums having different sound speeds by Snell's law, an applicable back-projection method is limited to a time domain method. An image data generating method performed to receive and convert an acoustic wave generated by irradiating a subject with light into a first electrical signal with an acoustic wave receiver via a medium having a sound speed different from that of the subject, and to generate image data based on the first electrical signal is provided, wherein a second electrical signal obtained when the acoustic wave is received at each virtual reception point is generated based on the first electrical signal through an integral calculation performed by using an advanced Green's function, and image data is generated based on the second electrical signal.

Acoustic wave measuring system and method of generating image data thereof

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Atsugi, Japan

Yasufumi Asao