-
公开(公告)号：US20160324505A1
公开(公告)日：2016-11-10
申请号：US15038841
申请日：2014-11-13
Applicant: Hitachi, Ltd.
Inventor： Toshinori MAEDA , Masaru MURASHITA , Noriyoshi MATSUSHITA , Yuko NAGASE
CPC classification number: A61B8/5215 , A61B8/0858 , A61B8/0883 , A61B8/4444 , A61B8/461 , A61B8/5207 , A61B8/5223 , A61B8/5238 , A61B8/5246 , A61B8/5253 , G06T5/003 , G06T5/50 , G06T7/0012 , G06T2207/10132 , G06T2207/20016 , G06T2207/20192 , G06T2207/20221
Abstract: An image processing unit (20) performs resolution conversion processing on an ultrasound image obtained on the basis of a reception signal, to generate a plurality of resolution images having mutually different resolutions. Furthermore, the image processing unit (20) performs non-linear processing on a difference image obtained by comparing the plurality of resolution images with each other, to generate boundary components related to boundaries included in the image. Moreover, a boundary-enhanced image is generated by performing enhancement processing on the ultrasound image on the basis of the generated boundary components.
Abstract translation: 图像处理单元（20）对基于接收信号获得的超声波图像执行分辨率转换处理，以产生具有相互不同分辨率的多个分辨率图像。 此外，图像处理单元（20）对通过比较多个分辨率图像而获得的差分图像进行非线性处理，以生成与图像中包括的边界相关的边界分量。 此外，通过基于生成的边界分量对超声波图像执行增强处理来生成边界增强图像。
-
公开(公告)号：US20210089812A1
公开(公告)日：2021-03-25
申请号：US16630581
申请日：2018-06-07
Applicant: Hitachi, Ltd.
Inventor： Yun LI , Takashi TOYOMURA , Toshinori MAEDA , Zisheng LI
Abstract: Provided is a technique for automatically extracting a cross section with a high degree of precision and at high speed, with avoiding problems of operator dependence and imaging target dependence, from 3D volume data or temporally sequential 2D or 3D images or 3D volume data, acquired by a medical imaging device, when determining the cross section used for diagnosis and measurement. An image processor of an imaging device is provided with a cross section extractor for extracting a specified cross section from imaged data. The cross section extractor determines the specified cross section by using a learning model trained in advance to output discrimination scores for a plurality of cross sectional image data, the discrimination score representing spatial or temporal proximity to the specified cross section. The learning model is a downsized model obtained by integrating a highly trained model having a large number of layers, with an untrained model having less number of layers, followed by retraining.
-
3.发明申请公开(公告)号：US20200046316A1
公开(公告)日：2020-02-13
申请号：US16361446
申请日：2019-03-22
Applicant: Hitachi, Ltd.
Inventor： Toshinori MAEDA
Abstract: A temporal change at each coordinate of interest which is spatially fixed in frame data of a plurality of time phases obtained by transmitting and receiving ultrasound is made understandable. A trace processor derives an amount of temporal change at each coordinate of interest of a plurality of coordinates of interest which are spatially fixed in the frame data over a plurality of time phases. The trace processor also derives an amount of spatial movement of each site of interest based on the amount of temporal change of each coordinate of interest near each site of interest. Further, the trace processor derives an amount of spatial movement of each site of interest for each time phase over a plurality of time phases in a trace period, and traces a motion of each site of interest in the trace period based on the amount of movement derived for each time phase.
-
Patent Agency Ranking
公开(公告)号：US20170352134A1
公开(公告)日：2017-12-07
申请号：US15543679
申请日：2016-02-09
Applicant: HITACHI, LTD.
Inventor： Masaki KOBAYASHI , Nobuyasu INOUE , Masaru MURASHITA , Yuko NAGASE , Toshinori MAEDA , Yuki MITANI
CPC classification number: G06T5/002 , A61B8/0866 , A61B8/14 , A61B8/466 , A61B8/5207 , A61B8/523 , G06K9/00275 , G06K9/4638 , G06K9/4661 , G06T1/00 , G06T7/0012 , G06T2207/10136 , G06T2207/20182 , G06T2207/30044
Abstract: On the basis of voxel data for a plurality of voxels constituting a set of ultrasound volume data, a voxel group identifying unit 50 identifies, in said ultrasound volume data, one or more voxel groups formed by a plurality of voxels in which voxel data satisfy a condition of being linked. On the basis of the voxel data for a plurality of voxels corresponding to each voxel group to be displayed, from among the one or more identified voxel groups, an image forming unit 80 forms an ultrasound image in which the voxel groups to be displayed are indicated clearly in a selective manner. It is thus possible for a three-dimensional image to be formed in such a way that one part of the image, such as floating matter in the amniotic fluid, does not interfere with another part of the image, such as a fetus.
-
公开(公告)号：US20170035394A1
公开(公告)日：2017-02-09
申请号：US15038831
申请日：2014-11-13
Applicant: HITACHI, LTD.
Inventor： Toshinori MAEDA , Masaru MURASHITA
CPC classification number: A61B8/5276 , A61B8/0883 , A61B8/14 , A61B8/5207 , A61B8/5246 , A61B8/5269 , G01S7/52077
Abstract: The purpose of the present invention is to use multiresolution decomposition to reduce image sections, such as fogging and stationary artifacts, which appear in an ultrasound image. An image processing unit (20) performs resolution conversion processing on an ultrasound image obtained on the basis of a reception signal, to form a plurality of resolution images having mutually different resolutions, determines, on the basis of the plurality of resolution images, a reduction degree for each section in the image, and forms an ultrasound image in which reduction processing has been performed on each section in the image in accordance with the reduction degrees.
Abstract translation: 本发明的目的是使用多分辨率分解来减少出现在超声图像中的图像部分，例如起雾和静止的伪像。 图像处理单元（20）对基于接收信号获得的超声波图像执行分辨率转换处理，以形成具有相互不同分辨率的多个分辨率图像，基于多个分辨率图像确定缩小 并且根据缩小度形成对图像中的每个部分执行缩小处理的超声图像。
-
公开(公告)号：US20170258437A1
公开(公告)日：2017-09-14
申请号：US15509423
申请日：2015-08-20
Applicant: Hitachi, Ltd.
Inventor： Toshinori MAEDA , Eiji KASAHARA , Masaru MURASHITA , Yuko NAGASE , Yuki TANAKA
CPC classification number: A61B8/02 , A61B8/08 , A61B8/0866 , A61B8/4483 , A61B8/461 , A61B8/5223
Abstract: A region of interest setting unit sets a region of interest within image data for a tomographic image. The region of interest setting unit sets the region of interest to the heart of an embryo and partitions the region of interest into a plurality of blocks. A waveform generating unit generates an embryonic heartbeat waveform for each block of the plurality of blocks within the region of interest on the basis of the image data within the block. A waveform evaluating unit uses a standard waveform to evaluate the reliability of the embryonic heartbeat waveform for each block of the plurality of blocks within the region of interest.
-
公开(公告)号：US20170251999A1
公开(公告)日：2017-09-07
申请号：US15320299
申请日：2015-04-17
Applicant: HITACHI, LTD.
Inventor： Yoshimi NOGUCHI , Masahiro OGINO , Takuma SHIBAHARA , Toshinori MAEDA , Yuuko NAGASE , Masaru MURASHITA
Abstract: An ultrasonography generation device includes an ultrasonic wave transceiver (1002), a user inputter (1006) which inputs input by an operator, a monitor (1011) capable of displaying an image, an image processor (1005) which generates tomographic image data of a fetus and the placenta based on signals acquired from the ultrasonic wave transceiver and sets a region of interest including a region between the fetus and the placenta according to the input from the inputter when the tomographic image data is displayed on the display, a 3D-ROI corrector (1008) which corrects the region of interest using the region of interest set by the operator and the tomographic image data and determines validity of the corrected region of interest, and a presentation part (1012) which presents the determination result from 3D-ROI corrector. The ultrasonography generation device generates a 3D image of the fetus using the corrected region of interest.
-
公开(公告)号：US20170251998A1
公开(公告)日：2017-09-07
申请号：US15510247
申请日：2015-08-20
Applicant: Hitachi, Ltd.
Inventor： Toshinori MAEDA , Eiji KASAHARA , Noriyoshi MATSUSHITA , Masaru MURASHITA
CPC classification number: A61B8/02 , A61B8/08 , A61B8/0866 , A61B8/0883 , A61B8/461 , A61B8/5207
Abstract: A tracking processing unit performs tracking processing for a plurality of states during a tracking period and, on the basis of a plurality of tracking results obtained from the tracking processing for the plurality of states, tracks the movement of a measurement point during the tracking period. In addition, with regard to a plurality of tracking points that comprise the measurement point and an auxiliary point, the tracking processing unit performs tracking processing for each tracking point during the tracking period and, on the basis of a plurality of tracking results obtained from the plurality of tracking points, tracks the movement of the measurement point during the tracking period.
-
-
-
-
-
-
-
Search Results
8
records
(took 0.015 seconds)
