公开(公告)号：US20130064428A1

公开(公告)日：2013-03-14

申请号：US13670678

申请日：2012-11-07

Applicant: Fujifilm Corporation

Inventor： Yoshiro KITAMURA

IPC: G06K9/46 ,  G06K9/62

CPC classification number: G06K9/469 ,  G06K9/6211 ,  G06K9/6892 ,  G06K2209/05 ,  G06T7/12 ,  G06T7/149 ,  G06T2207/30048

Abstract: A plurality of candidate points are extracted from image data. The plurality of candidate points are normalized, and a set of representative points composing form model that is most similar to set form is selected from the plurality of candidate points. Further, the candidate points and the form model are compared with each other, and correction is performed by adding a region forming structure or by deleting a region, or the like. Accordingly, the structure is detected in image data.

Abstract translation: 从图像数据中提取多个候选点。 多个候选点被归一化，并且从多个候选点中选择构成与设定形式最相似的形式模型的一组代表点。 此外，将候选点和形式模型相互比较，并且通过添加区域形成结构或通过删除区域等来执行校正。 因此，在图像数据中检测结构。

公开(公告)号：US20230346351A1

公开(公告)日：2023-11-02

申请号：US18306966

申请日：2023-04-25

Applicant: FUJIFILM Corporation

Inventor： Yoshiro KITAMURA

IPC: A61B8/08 ,  A61B8/13 ,  G06T7/80 ,  G06T7/00

CPC classification number: A61B8/52 ,  A61B8/13 ,  G06T7/80 ,  G06T7/97 ,  G06T2207/10136

Abstract: A processor sequentially acquires a plurality of radiation images of a subject having a body cavity into which an ultrasonic endoscope to which an ultrasonic imaging device is attached and to which a radiation impermeable marker is attached is inserted, sequentially acquires a plurality of two-dimensional ultrasound images corresponding to the plurality of radiation images, which are acquired by the ultrasonic imaging device, recognizes a position and a posture of the ultrasonic endoscope in the body cavity based on the marker included in each of the plurality of radiation images, and derives a three-dimensional ultrasound image from the plurality of two-dimensional ultrasound images based on the position and the posture of the ultrasonic endoscope recognized with respect to the plurality of radiation images.

公开(公告)号：US20210319210A1

公开(公告)日：2021-10-14

申请号：US17356498

申请日：2021-06-23

Applicant: FUJIFILM Corporation

Inventor： Akimichi ICHINOSE ,  Yoshiro KITAMURA

IPC: G06K9/00 ,  G06T7/11 ,  G06T7/143 ,  G06T7/168 ,  G06T7/246 ,  G06K9/62 ,  G06T7/149

Abstract: A region specification apparatus, a region specification method, and a region specification program efficiently specify any object included in an input image. A convolutional neural network of an object specification unit generates a convolutional feature map from an input image (S0). A first discriminator selects an anchor based on a similarity in shape and size to a ground truth box including an object candidate from among a plurality of anchors having various shapes and various sizes. The first discriminator specifies an object candidate region in the input image based on the selected anchor.

公开(公告)号：US20180263527A1

公开(公告)日：2018-09-20

申请号：US15868045

申请日：2018-01-11

Applicant: FUJIFILM Corporation

Inventor： Yoshiro KITAMURA

IPC: A61B5/06 ,  A61B1/00 ,  A61B1/04 ,  A61B1/267

CPC classification number: A61B5/066 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/0005 ,  A61B1/04 ,  A61B1/2676

Abstract: An image acquisition unit sequentially acquires an endoscope image of a tubular structure having a plurality of branch structures, and an image generation unit generates an image of the tubular structure. A first certainty factor calculation unit calculates a first certainty factor indicating a possibility of presence of the endoscope within the tubular structure. A second certainty factor calculation unit calculates a second certainty factor indicating a possibility of presence of the endoscope by performing matching between the image of the tubular structure and each of the endoscope images at each of a plurality of positions within the tubular structure. A current position specifying unit specifies the current position of the endoscope based on the first and second certainty factors.

公开(公告)号：US20160228075A1

公开(公告)日：2016-08-11

申请号：US15133908

申请日：2016-04-20

Applicant: FUJIFILM Corporation

Inventor： Yoshiro KITAMURA

IPC: A61B6/12 ,  A61B6/03 ,  A61B1/00 ,  A61B6/00

CPC classification number: A61B6/12 ,  A61B1/00009 ,  A61B6/032 ,  A61B6/463 ,  A61B6/5235 ,  A61B6/541

Abstract: Employing a first image and a second image that represent a subject in different phases, based on a first insertion position and a first tip position of the first image and deformation information for deforming the first image so as to be aligned with the second image, a second insertion position of the second image corresponding to the first insertion position and a second tip position are specified such that a direction corresponding to a first insertion direction from the first insertion position toward the first tip position becomes a second insertion direction from the second insertion position toward the second tip position, and a second observation image obtained by visualizing the inside of the subject in a phase corresponding to the second image with the second tip position as a viewpoint is generated. Thereby, observation images of different phases as viewed through a virtual rigid surgical device are generated.

Abstract translation: 基于第一图像的第一插入位置和第一末端位置以及用于使第一图像变形以与第二图像对准的变形信息，采用表示不同阶段的被摄体的第一图像和第二图像， 指定与第一插入位置对应的第二图像的第二插入位置和第二前端位置，使得从第一插入位置朝向第一末端位置的第一插入方向对应的方向从第二插入位置变为第二插入方向 并产生第二观察图像，该第二观察图像通过以与第二图像的第二图像相对应的相位，以第二视点为视点，将被检体的内部可视化。 由此，生成通过虚拟的刚性手术装置观察的不同相的观察图像。

公开(公告)号：US20150071553A1

公开(公告)日：2015-03-12

申请号：US14542418

申请日：2014-11-14

Applicant: Fujifilm Corporation

Inventor： Yoshiro KITAMURA

IPC: G06K9/62 ,  G06T7/00

CPC classification number: G06K9/6211 ,  G06K2209/051 ,  G06T7/149 ,  G06T7/162 ,  G06T2207/20072 ,  G06T2207/20164 ,  G06T2207/30101 ,  G06T2207/30172

Abstract: An image processing device includes a candidate point extracting unit configured to extract a plurality of candidate points belonging to a predetermined structure from image data, a shape model storing unit configured to store a shape model representing a known shape of the predetermined structure, the shape model being formed by a plurality of model labels having a predetermined connection relationship, and a corresponding point selecting unit configured to select a mapping relationship between the candidate points and the model labels from a set of candidate mapping relationships.

Abstract translation: 一种图像处理装置，包括：候选点提取单元，被配置为从图像数据提取属于预定结构的多个候选点;形状模型存储单元，被配置为存储表示所述预定结构的已知形状的形状模型，所述形状模型 由具有预定连接关系的多个模型标签形成，以及对应点选择单元，被配置为从一组候选映射关系中选择候选点和模型标签之间的映射关系。

公开(公告)号：US20130108137A1

公开(公告)日：2013-05-02

申请号：US13721222

申请日：2012-12-20

Applicant: Fujifilm Corporation

Inventor： Yoshiro KITAMURA

IPC: G06K9/34

CPC classification number: G06K9/34 ,  A61B6/506 ,  G06T5/50 ,  G06T7/0012 ,  G06T2207/10116 ,  G06T2207/30004

Abstract: A problem inherent to radiographic images, which may occur when an independent component analysis technique is applied to energy subtraction carried out on radiographic images, is solved to achieve separation of image components to be separated with higher accuracy. As preprocessing before the independent component analysis, a spatial frequency band which contains the components to be separated is extracted, pixels of the radiographic images are classified into more than one subsets for each radiographic image based on a value of a predetermined parameter, and/or nonlinear pixel value conversion is applied to the radiographic images based on a value of the predetermined parameter. Alternatively, nonlinear independent component analysis is carried out according to a model using the predetermined parameter.