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公开(公告)号：US20200330063A1
公开(公告)日：2020-10-22
申请号：US16635700
申请日：2018-04-19
Applicant: Shimadzu Corporation
Inventor： David THIBAULT PELLETIER , Shota SATO , Shohei OKUBO
Abstract: A radiographic imaging apparatus (100) is configured to generate movement maps (30) of pixels (21) belonging to a first image (11) based on the first image (11) and a second image (12) captured at different times, to move a pixel (21) of the first image (11) based on a smoothed movement map (30a) in which high-frequency components of the movement maps (30) have been suppressed in a spatial direction and generate a deformed image (11a), and to combine the deformed image (11a) and the second image (12).
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公开(公告)号：US20180206809A1
公开(公告)日：2018-07-26
申请号：US15867317
申请日：2018-01-10
Applicant: SHIMADZU CORPORATION
Inventor： Shota SATO , Takihito SAKAI
CPC classification number: A61B6/5235 , A61B6/461 , A61B6/469 , A61B6/487 , A61B6/503 , A61B6/504 , A61B6/5205 , G01T1/2018 , G01T1/208 , G06T7/0012 , G06T7/11 , G06T7/20 , G06T11/60 , G06T2207/10121 , G06T2207/30048
Abstract: An X-ray fluoroscopic imaging apparatus includes: an image generation element that generates the fluoroscopic images of the subject; an image processing element that executes an image processing to superimpose a plurality of fluoroscopic images that the image generation element continuously generates, and generates and displays the image denoting the movement locus of the marker that denotes the location of a stent introduced inside a body of the subject; and a region-of-interest setting element that set up the region-of-interest includes the movement locus relative to the superimposed image, in which the fluoroscopic images are superimposed one another.
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公开(公告)号：US20190282304A1
公开(公告)日：2019-09-19
申请号：US15922965
申请日：2018-03-16
Applicant: Shimadzu Corporation
Inventor： Shota SATO
Abstract: An X-ray fluoroscopic imaging apparatus which can accurately perform enhancement processing of a device and can also reduce a burden on an operator is provided. An exclusion region E is set so as to surround an obstacle on an X-ray image generated by an image generation unit. A marker extraction unit extracts a marker from a region except for an exclusion region in the X-ray image. An integration unit superimposes a predetermined number of X-ray images on the basis of the position of the marker to generate an integrated image. In this case, detecting obstacle as a marker can be avoided, so the integrated image becomes an image with a stent suitably highlighted. Even in cases where it is difficult to set the region-of-interest so that an obstacle falls out of the range, such as a case in which an obstacle overlaps or is in proximity to a stent, it is easy to set the exclusion region so that the marker is out of range and the obstacle falls within the range. Therefore, the enhancement processing of the stent can be suitably executed according to more various situations.
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公开(公告)号：US20190015056A1
公开(公告)日：2019-01-17
申请号：US16066568
申请日：2015-12-28
Applicant: SHIMADZU CORPORATION
Inventor： Shota SATO , Wataru TAKAHASHI , Michel DARGIS , Takihito SAKAI , Keiichi GOTO , Sebastien MATTE
Abstract: A radiography apparatus sequentially determines, on the basis of the positions of markers as time-sequential feature points (of a plurality of frames), positions at which the markers in the frames are displayed. This makes it possible to display a moving object while the position, direction and size thereof are properly set. Another advantage is that when a plurality of markers are extracted, information relating to the direction and size of the object is retained and the proximal and distal directions of the object and the length of a device (e.g., stent) can be intuitively determined from an image. Since positioning is performed using the plurality of positions of markers and the plurality of display positions, the position and direction of a corrected image to be finally displayed can also be set properly.
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