Canon Kabushiki Kaisha

Hitachi-high-technologies Corporation

Hitachi, Ltd.

Luxonus Inc.

Kenichi Nagae

Toru Sato

Hirofumi Taki

Katsuya Oikawa

Atsushi Kandori

Masao Majima

Yasuhiro Someda

Naoya Iizuka

Tsuyoshi Shiina

Shoya Sasaki

Haruo Yoda

Yasufumi Asao

Kazuhiko Fukutani

Makoto Yamakawa

Katsumi Nakagawa

Yasuyoshi Takai

Yukio Furukawa

Kazutoshi Torashima

Masatoshi Kanamaru

Makoto Takagi

Haruhito Ono

Yoshitaka Baba

Takuya Sakamoto

Yoshinori Nakayama

Keishi Saito

Takao Nakajima

Hiroshi Abe

Takatoshi Tanaka

Chienliu Chang

Ryuichi Nanaumi

Kouichi Kato

Sayaka Tanimoto

Minoru Ohkoba

Kazuhito Oka

Sadakazu Aiso

Masaki Takakuwa

Robert A Kruger

Kengo Kondo

Harunobu Muto

Hiroki Kajita

Nobuaki Imanishi

Takahiro Manjo

Masaharu Akao

Junichi Morimoto

Shigeaki Okumura

Torashima Kazutoshi

An aspect provides an image processing apparatus processing three-dimensional image data generated based on a photoacoustic wave generated from inside of a subject. The image processing apparatus includes first three-dimensional image acquisition unit for acquiring first three-dimensional image data in which a first region corresponding to a first substance in the subject is extracted from the three-dimensional image data, second three-dimensional image acquisition unit for acquiring second three-dimensional image data in which a second region corresponding to a second substance in the subject is extracted from the three-dimensional image data, first two-dimensional image acquisition unit for acquiring first two-dimensional image data associated with three-dimensional positional information of the first region from the first three-dimensional image data, and second two-dimensional image acquisition unit for acquiring second two-dimensional image data associated with three-dimensional positional information of the second region from the second three-dimensional image data.

Image processing apparatus and image processing method and non-transitory computer-readable medium

An ultrasonic diagnostic apparatus, comprising: an ultrasonic probe which scans an observation region in an object with an ultrasonic wave; and an estimated image generating unit which, by using a model having been machine-learned using learning data including first data based on a first received signal that is obtained by first transmission/reception of an ultrasonic wave and second data based on a second received signal that is obtained by second transmission/reception that represents a larger number of transmissions/receptions than the first transmission/reception of the ultrasonic wave, generates an estimated image equivalent to image data obtained by the second transmission/reception from third data based on a third received signal that is obtained by transmission/reception equivalent to the first transmission/reception of the ultrasonic wave by the ultrasonic probe.

Ultrasonic diagnostic apparatus, learning apparatus, and image processing method

An object information acquiring apparatus is used. This apparatus comprises: a light source configured to emit pulsed light of a plurality of wavelengths; a wavelength controller configured to switch the wavelength; a probe configured to receive an acoustic wave generated and propagated in an object subjected to the pulsed light emitted onto the object; a scan controller configured to move the probe within a predetermined scanning range; and an information processor configured to acquire information about the object by using a plurality of electric signals corresponding to the wavelengths of the pulsed light output from the probe at each reception position in the scanning area. The wavelength controller switches the wavelength of the pulsed light before the probe scans the entire scanning area while receiving at each reception position an acoustic wave corresponding to at least one of the wavelengths of the pulsed light.

Object information acquiring apparatus

An ultrasonic diagnostic apparatus includes an ultrasonic probe configured to transmit and receives ultrasonic waves to and from an observation region of an object. The ultrasonic diagnostic apparatus further includes an estimated image generating unit configured to generate estimated image data corresponding to image data based on an ultrasonic focused beam from image data obtained by transmission of an ultrasonic plane-wave beam by using a model having been machine-learned from learning data including image data obtained by the transmission of the ultrasonic plane-wave beam and image data obtained by the transmission of the ultrasonic focused beam.

A subject information acquisition apparatus includes a light irradiation unit configured to irradiate a subject with light, a probe configured to detect an acoustic wave generated in the subject due to the irradiation of the light, a moving unit configured to change a relative position between the probe and the subject, and a control unit configured to control the moving unit to move the probe so that the probe makes a movement along a path a plurality of times. The moving unit is controlled so that the relative position of the probe with respect to the subject when the subject is irradiated with the light during a first movement along the path differs from the relative position of the probe with respect to the subject when the subject is irradiated with the light during a second movement along the path successively performed after the first movement along the path.

Photoacoustic subject information acquisition apparatus for imaging a subject by moving probe to circulate along a common circulating path

A photoacoustic apparatus includes a light source configured to generate a plurality of pulsed lights in different wavelengths, an irradiation optical system configured to irradiate an object with the pulsed light from the light source and configured to irradiate the object in different irradiation positions along a rotational trajectory during a rotational scanning period in a corresponding wavelength, and a probe configured to receive photoacoustic wave from the object in response to each pulsed light irradiation in the different irradiation positions and to convert the received photoacoustic wave into an electric signal. The irradiation optical system is moved to irradiate the object with a first wavelength in a plurality of times during a first rotational scanning period and irradiate the object with a second wavelength in a plurality of times during a second rotational scanning period after the first rotational scanning period.

Photoacoustic apparatus and object information acquiring method

An information processing apparatus includes an image data acquisition unit and a template data acquisition unit. The image data acquisition unit acquires a plurality of pieces of image data generated by performing a plurality of ultrasonic wave transmission and reception operations on a subject while changing an ultrasonic wave transmission and reception mode. The template data acquisition unit acquires a plurality of pieces of template data corresponding to the plurality of ultrasonic wave transmission and reception operations, respectively. The similarity information acquisition unit acquires information indicating a similarity between an image value sequence of the plurality of pieces of image data at a target position and a template data sequence of the plurality of pieces of template data at the target position.

Information processing apparatus, information processing method, and storage medium

There are provided a subject information processing apparatus suitable for acquiring a moving image by consecutively receiving acoustic waves from an observation target subject region and an image display method. First combined image data is generated by combining at least two of i-th image data to (i+m)-th image data (i+m&#x3c;N, where i and m are natural numbers) out of N pieces of image data based on electrical signals acquired when a probe detects the acoustic waves respectively at N positions (N is 3 or a larger integer) at different relative positions to the subject. Second combined image data is generated by combining at least two of an (i+n)-th to an (i+n+m)-th image data (n is a natural number). An image based on the first combined image data is updated to an image based on the second combined image data.

Subject information processing apparatus and image display method

An image processing apparatus acquires volume data including a negative voxel value and derived from a photoacoustic wave produced by irradiating a subject with light, generates compressed volume data by compressing the volume data to selectively reduce a data amount of voxel data having a voxel value whose absolute value is less than a threshold, and saves the compressed volume data.

Image processing apparatus

A subject information acquisition apparatus includes a converter configured to receive reflected waves from a contrast medium within a target area inside a subject, and a pressure information acquisition unit configured to acquire pressure information within the target area. In this case, the converter receives reflected waves from a contrast medium in each of a first period and a second period in which a pressure within the target area is different from the first period. The pressure information acquisition unit acquires pressure information in the second period within the target area based on a receive signal based on reflected waves in the first period, a receive signal based on a reflected wave in the second period, and pressure information on a region different from the target area, the pressure information being acquired in the first period.

Subject information acquisition apparatus, subject information acquisition method, and program

An image processing apparatus according to the present disclosure includes a data acquisition unit configured to acquire data in which three-dimensional medical image data and supplementary information are associated with each other, a cross section information acquisition unit configured to acquire the supplementary information from the data and acquire cross section information indicating a cross section based on the supplementary information, a cross-sectional image generation unit configured to generate cross-sectional image data corresponding to the cross section based on the three-dimensional medical image data and the cross section information, and a display control unit configured to cause a display unit to display an image based on the cross-sectional image data.

Image processing apparatus, image processing method, and storage medium

An acoustic probe includes a plurality of transducers that receives acoustic waves and a supporting body including a supporting portion having a symmetrical concave surface, such as a spherical cap surface, which supports the transducers in a spiral array. The supporting position R at which the supporting portion supports the transducers is given as R(r, &#x3b8;, &#x3c6;) [m, rad, rad] by a polar coordinate with respect to a center of the symmetrical concave surface by setting a sphere radius, a zenith angle, and an azimuth angle as 'r', '&#x3b8;', and &#x201c;&#x3c6;&#x201d;, wherein the plurality of transducers is arrayed at a set azimuth angle spiral pitch in an azimuth angle direction and an axis direction spiral pitch set parallel to a central axis direction of the symmetrical concave surface, and wherein the azimuth angle spiral pitch is an angle acquired by dividing 2&#x3c0; by 1+golden number.

Acoustic probe and acoustic apparatus

Viscoelastic characteristics in a subject are imaged by a simple method. A viscoelasticity measurement reference layer whose elastic modulus and viscosity coefficient are known is included between an ultrasonic wave transmitting/receiving probe and the subject and distributions of elastic modulus and viscosity coefficient inside the subject are calculated from a change over time of strain generated in the viscoelasticity measurement reference layer and the subject according to a pressure applied to the subject which changes over time and known elastic modulus and viscosity coefficient of the viscoelasticity measurement reference layer.

Subject information acquisition apparatus

A photoacoustic apparatus sets a light irradiation timing such that a subject is irradiated with pulsed light at least once within a period extending from a start timing determined on the basis of a generation timing of an R-wave in an electrocardiogram signal to a point at which a first time extending from the generation timing of the R-wave in the electrocardiogram signal to a generation timing of a T-wave in the electrocardiogram signal elapses, and sets the light irradiation timing such that the subject is not irradiated with the pulsed light in a period outside the period extending from the start timing to a point at which the first time elapses.

Photoacoustic apparatus

An information processing apparatus includes a first image acquisition unit configured to acquire first image data derived from a photoacoustic wave generated by light irradiation, a position acquisition unit configured to acquire position information indicating a position in the first image data having an image value that is within a predetermined range, a neighborhood position acquisition unit configured to acquire neighborhood position information indicating a neighborhood position neighboring the position based on the position information, and a display control unit configured to cause a display unit to display an image based on the first image data, the position information, and the neighborhood position information.

Information processing apparatus, information processing method, and non-transitory storage medium

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Yokohama, Japan

Kenichi Nagae