Patents by Inventor Takehiro Tsujita
Takehiro Tsujita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240078664Abstract: An accuracy calculation unit receives an ultrasound image generated by transmitting and receiving an ultrasonic wave, and specifies an imaging scene by a plurality of types of specifying processing for specifying the imaging scene of the ultrasound image. Further, the accuracy calculation unit calculates accuracy of specifying the imaging scene for each specifying processing. The determination unit determines an examination action to be performed next on the basis of a result of calculation by the accuracy calculation unit.Type: ApplicationFiled: August 28, 2023Publication date: March 7, 2024Inventors: Teiichiro Ikeda, Takehiro Tsujita, Atsuko Otake, Atsushi Shiromaru, Rei Yokosawa
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Publication number: 20230196580Abstract: A mark that identifies a lesion site is displayed on a tomographic image. A two-dimensional map and a graph are displayed regardless of whether or not the mark is displayed. The two-dimensional map represents lesion site probability distribution. The graph represents temporal change of lesion site probabilities.Type: ApplicationFiled: October 20, 2022Publication date: June 22, 2023Inventors: Kenta Inoue, Takehiro Tsujita, Tomofumi Nishiura, Yoko Horie, Maki Kuwayama
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Patent number: 11134921Abstract: An ultrasonic diagnostic device and ultrasonic three-dimensional image generation method generate a three-dimensional image by expressing interaction by dispersion, absorption, or the like of light in tissue or between tissues. The ultrasonic diagnostic device displays a three-dimensional image of a target object based on at least one piece of volume data among luminance volume data, blood flow volume data, and elasticity volume data.Type: GrantFiled: April 11, 2014Date of Patent: October 5, 2021Assignee: HITACHI, LTD.Inventor: Takehiro Tsujita
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Patent number: 11017512Abstract: According to one embodiment, a depth map used for a reflection model is generated based on a power image as a blood flow image. A reflection image is generated from the depth map according to the reflection model. By synthesizing the reflection image 70 with the power image, a weighted power image is generated. Using the same method as described above, a weighted velocity image may be generated.Type: GrantFiled: March 22, 2019Date of Patent: May 25, 2021Assignee: Hitachi, Ltd.Inventor: Takehiro Tsujita
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Publication number: 20190370947Abstract: According to one embodiment, a depth map used for a reflection model is generated based on a power image as a blood flow image. A reflection image is generated from the depth map according to the reflection model. By synthesizing the reflection image 70 with the power image, a weighted power image is generated. Using the same method as described above, a weighted velocity image may be generated.Type: ApplicationFiled: March 22, 2019Publication date: December 5, 2019Inventor: Takehiro Tsujita
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Patent number: 10016181Abstract: Provided is an ultrasound diagnostic apparatus capable of creating a three-dimensional image that expresses the shading effect due to leakage, absorption or others of light. The apparatus displays a three-dimensional image of an object based on luminance volume data, and includes: a light source information setting unit configured to set light source data indicating a property of a light source that is set in a three-dimensional space; an optical property setting unit configured to set a weight coefficient indicating an optical property of the luminance volume data with respect to the light source; an illuminance calculation unit configured to calculate an illuminance at a position corresponding to a coordinate of the luminance volume data, based on the optical data and the weight coefficient, and to create illuminance volume data based on the calculated illuminance; and a volume rendering unit configured to create the three-dimensional image from the data.Type: GrantFiled: September 12, 2013Date of Patent: July 10, 2018Assignee: HITACHI, LTD.Inventor: Takehiro Tsujita
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Ultrasound diagnostic apparatus and ultrasound two-dimensional cross-section image generation method
Patent number: 9786040Abstract: An ultrasound diagnostic apparatus includes a light source information setting unit setting light source data indicating a property of a light source irradiated to a cross section region of the object, an optical property setting unit setting a weight coefficient indicating an optical property of cross-section region data including intensity information on the cross section region to the light source, an illuminance slice data creation unit calculating illuminance at positions corresponding to coordinates of a plurality of the cross-section regions based on the light source data and the weight coefficient, and creating illuminance slice data of the plurality of the cross-section regions based on the calculated illuminance, and a composition unit compositing a two-dimensional cross-section image of the object from the plurality of illuminance slice data.Type: GrantFiled: September 12, 2013Date of Patent: October 10, 2017Assignee: HITACHI, LTD.Inventor: Takehiro Tsujita -
Patent number: 9514564Abstract: For generating ultrasonic projection images in which various kind of ultrasonic projection images have been appropriately combined, the invention is provided with: a storage unit that stores tomographic image volume data and elastic image volume data; a volume rendering unit that generates tomographic projection images by volume rendering on the basis of the tomographic image volume data; a display device that displays the ultrasonic projection images generated by the volume rendering unit; and an operation unit for inputting commands to control the volume rendering unit. For one of the rendering spaces partitioned by a cutting plane set in the rendering space by a command input from the operation unit, the volume rendering unit renders voxels of tomographic image volume data corresponding to the voxels of elastic image volume data that have elasticity values satisfying a set threshold value, and generates and displays the tomographic projection image on the display device.Type: GrantFiled: July 28, 2011Date of Patent: December 6, 2016Assignee: HITACHI MEDICAL CORPORATIONInventor: Takehiro Tsujita
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Publication number: 20160038124Abstract: Provided is an ultrasound diagnostic apparatus capable of creating a three-dimensional image that expresses the shading effect due to leakage, absorption or others of light. The apparatus displays a three-dimensional image of an object based on luminance volume data, and includes: a light source information setting unit configured to set light source data indicating a property of a light source that is set in a three-dimensional space; an optical property setting unit configured to set a weight coefficient indicating an optical property of the luminance volume data with respect to the light source; an illuminance calculation unit configured to calculate an illuminance at a position corresponding to a coordinate of the luminance volume data, based on the optical data and the weight coefficient, and to create illuminance volume data based on the calculated illuminance; and a volume rendering unit configured to create the three-dimensional image from the data.Type: ApplicationFiled: September 12, 2013Publication date: February 11, 2016Inventor: Takehiro TSUJITA
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Publication number: 20160030007Abstract: An ultrasonic diagnostic device and ultrasonic three-dimensional image generation method generate a three-dimensional image by expressing interaction by dispersion, absorption, or the like of light in tissue or between tissues. The ultrasonic diagnostic device displays a three-dimensional image of a target object based on at least one piece of volume data among luminance volume data, blood flow volume data, and elasticity volume data.Type: ApplicationFiled: April 11, 2014Publication date: February 4, 2016Inventor: Takehiro TSUJITA
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Patent number: 9247922Abstract: Provided is an ultrasonic diagnostic apparatus configured to appropriately display a region of interest that is intended to be observed in a 3-dimensional elastic image, and also provided is an ultrasonic image display method. The ultrasonic diagnostic apparatus includes an elastic opacity table creating section for creating, on the basis of the elasticity values, an elastic opacity table used for setting an opacity in the volume rendering of the elastic volume data.Type: GrantFiled: November 25, 2010Date of Patent: February 2, 2016Assignee: HITACHI MEDICAL CORPORATIONInventor: Takehiro Tsujita
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ULTRASOUND DIAGNOSTIC APPARATUS AND ULTRASOUND TWO-DIMENSIONAL CROSS-SECTION IMAGE GENERATION METHOD
Publication number: 20150248750Abstract: An ultrasound diagnostic apparatus includes a light source information setting unit setting light source data indicating a property of a light source irradiated to a cross section region of the object, an optical property setting unit setting a weight coefficient indicating an optical property of cross-section region data including intensity information on the cross section region to the light source, an illuminance slice data creation unit calculating illuminance at positions corresponding to coordinates of a plurality of the cross-section regions based on the light source data and the weight coefficient, and creating illuminance slice data of the plurality of the cross-section regions based on the calculated illuminance, and a composition unit compositing a two-dimensional cross-section image of the object from the plurality of illuminance slice data.Type: ApplicationFiled: September 12, 2013Publication date: September 3, 2015Inventor: Takehiro Tsujita -
Patent number: 8988462Abstract: In order to provide an ultrasonic diagnostic apparatus and an ultrasonic image display method for appropriately displaying a three-dimensional elastic image, a three-dimensional blood flow image, and a three-dimensional tomographic image such that the images can be separately recognized, the ultrasonic diagnostic apparatus includes projected image creation units that create a plurality of projected images from the plurality of types of volume data and a projected image combination unit that creates a composite projected image by combining the plurality of projected images on the basis of a predetermined combination rate, and the display unit displays the composite projected image.Type: GrantFiled: February 3, 2011Date of Patent: March 24, 2015Assignee: Hitachi Medical CorporationInventor: Takehiro Tsujita
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Patent number: 8948485Abstract: In order to generate a three-dimensional tomographic image in which the visibility of specific tissue that an examiner wants is enhanced, an ultrasonic diagnostic apparatus 100 of the present invention includes: an offset calculating section 16 which increases or decreases the brightness value of each voxel according to the brightness value of each voxel of a three-dimensional tomographic image volume data. The amount of increase or decrease in the brightness value of each voxel of the offset calculating section is adjustable through a control panel 26, and a tomographic image volume rendering section generates the three-dimensional tomographic image on the basis of a three-dimensional tomographic image volume data in which the brightness value is offset by the offset calculating section.Type: GrantFiled: June 4, 2010Date of Patent: February 3, 2015Assignee: Hitachi Medical CorporationInventor: Takehiro Tsujita
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Patent number: 8617075Abstract: An ultrasonic diagnostic apparatus is disclosed for imaging 3-dimensional images by irradiating ultrasonic waves to an object and reconstructing the 3-dimensional image. The ultrasonic diagnostic apparatus includes an ultrasonic probe for transmitting/receiving ultrasonic waves to/from an object to be examined, an ultrasonic image construction unit for constructing a 3-dimensional ultrasonic image based on the 3-dimensional ultrasonic image data from the ultrasonic signals received from the ultrasonic probe, and a display unit for displaying the 3-dimensional ultrasonic image. A position sensor is provided for detecting the position of the ultrasonic probe. A positional information analyzing unit stores the first position of the ultrasonic probe obtained from the position sensor and analyzes the positional relationship between the first position and the second position.Type: GrantFiled: February 9, 2006Date of Patent: December 31, 2013Assignee: Hitachi Medical CorporationInventors: Takehiro Tsujita, Tetsuya Hayashi
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Publication number: 20130271455Abstract: Provided is a technology capable of obtaining at high speed a three-dimensional image having good image quality, without increasing the load on an ultrasonic diagnostic device. A plurality of filter processing having different effects are performed, prior to rendering, on tomographic volume data that has completed coordinate transformation, and volume data is obtained for each. A prescribed weight is added to each voxel for each of the obtained volume data, and a three-dimensional image is generated from the volume data obtained thereby. The filter processing having different effects may be different types of filter processing such as smoothing and sharpening, the same filter processing but having different strengths, or a combination of filter processing and no filter processing.Type: ApplicationFiled: January 19, 2012Publication date: October 17, 2013Applicant: HITACHI MEDICAL CORPORATIONInventor: Takehiro Tsujita
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Publication number: 20130194267Abstract: For generating ultrasonic projection images in which various kind of ultrasonic projection images have been appropriately combined, the invention is provided with: a storage unit that stores tomographic image volume data and elastic image volume data; a volume rendering unit that generates tomographic projection images by volume rendering on the basis of the tomographic image volume data; a display device that displays the ultrasonic projection images generated by the volume rendering unit; and an operation unit for inputting commands to control the volume rendering unit. For one of the rendering spaces partitioned by a cutting plane set in the rendering space by a command input from the operation unit, the volume rendering unit renders voxels of tomographic image volume data corresponding to the voxels of elastic image volume data that have elasticity values satisfying a set threshold value, and generates and displays the tomographic projection image on the display device.Type: ApplicationFiled: July 28, 2011Publication date: August 1, 2013Applicant: HITACHI MEDICAL CORPORATIONInventor: Takehiro Tsujita
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Publication number: 20120287156Abstract: In order to provide an ultrasonic diagnostic apparatus and an ultrasonic image display method for appropriately displaying a three-dimensional elastic image, a three-dimensional blood flow image, and a three-dimensional tomographic image such that the images can be separately recognized, the ultrasonic diagnostic apparatus includes projected image creation units that create a plurality of projected images from the plurality of types of volume data and a projected image combination unit that creates a composite projected image by combining the plurality of projected images on the basis of a predetermined combination rate, and the display unit displays the composite projected image.Type: ApplicationFiled: February 3, 2011Publication date: November 15, 2012Applicant: HITACHI MEDICAL CORPORATIONInventor: Takehiro Tsujita
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Publication number: 20120259223Abstract: Provided is an ultrasonic diagnostic apparatus configured to appropriately display a region of interest that is intended to be observed in a 3-dimensional elastic image, and also provided is an ultrasonic image display method. The ultrasonic diagnostic apparatus includes an elastic opacity table creating section for creating, on the basis of the elasticity values, an elastic opacity table used for setting an opacity in the volume rendering of the elastic volume data.Type: ApplicationFiled: November 25, 2010Publication date: October 11, 2012Applicant: HITACHI MEDICAL CORPORATIONInventor: Takehiro Tsujita
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Publication number: 20120203108Abstract: An ultrasonic diagnostic apparatus is provided with: an ultrasonic probe which is brought into contact with an object to transmit and receive ultrasonic waves; a transmission unit and a reception unit which periodically transmit and receive the ultrasonic waves to and from the object and subject a reflection echo signal from the object to reception processing; a displacement measurement unit which sequentially finds the displacements of a living organism tissue at the position of cross section at which the ultrasonic waves are transmitted to and received from the object; an elasticity image construction unit which sequentially constructs the elasticity images of the living organism tissue; and a three-dimensional image construction unit which constructs a three-dimensional elasticity image.Type: ApplicationFiled: October 15, 2010Publication date: August 9, 2012Applicant: HITACHI MEDICAL CORPORATIONInventor: Takehiro Tsujita