Optimizing user interactions in segmentation

    公开(公告)号:US10672122B2

    公开(公告)日:2020-06-02

    申请号:US15774623

    申请日:2016-11-01

    Abstract: A system and a computer-implemented method are provided for segmenting an object in a medical image using a graphical segmentation interface. The graphical segmentation interface may comprise a set of segmentation tools for enabling a user to obtain a first segmentation of the object in the image. This first segmentation may be represented by segmentation data. Interaction data may be obtained which is indicative of a set of user interactions of the user with the graphical segmentation interface by which the first segmentation of the object was obtained. The system may comprise a processor configured for analyzing the segmentation data and the interaction data to determine an optimized set of user interactions which, when carried out by the user, obtains a second segmentation similar to the first segmentation, yet in a quicker and more convenient manner. A video may be generated for training the user by indicating the optimized set of user interactions to the user.

    Optimization of parameters for segmenting an image

    公开(公告)号:US10134142B2

    公开(公告)日:2018-11-20

    申请号:US15314527

    申请日:2015-06-11

    Abstract: The present invention relates to a device for segmenting an image (12) of a subject (14) comprising a data interface (16) for receiving an image (12) of said subject (14) and at least one contour (18) or at least one part of a contour (18), said contour (18) indicating a structure (19) within said image (12), a selection unit (20) for selecting a region (22) in said image (12) divided into a first and a second disjoint part (24, 26) by said contour (18) or said part of said contour (18), said selected region (22) comprising a drawn region and/or a computed region, a classifier (28) for classifying said selected region (22) based on at least one parameter for image segmentation, an analysis unit (29) for defining an objective function based on the classification result, an optimizer (30) for optimizing said parameter set by varying an output of said objective function and an image segmentation unit (32) for segmenting said image (12) using said optimized parameter set.

    Automated scan planning for follow-up magnetic resonance imaging

    公开(公告)号:US10032250B2

    公开(公告)日:2018-07-24

    申请号:US15547083

    申请日:2016-01-15

    Abstract: An MRI system (100) acquires magnetic resonance data (158, 168) from a subject. The execution of machine-executable instructions (180, 182, 184, 186, 188) causes a processor (144) to: receive (300) a baseline medical image (152) data descriptive of one or more internal structures (126) of the subject; receive (302) a baseline scan geometry (154); acquire (304) survey magnetic resonance data (158) from the subject by controlling the magnetic resonance imaging system with survey pulse sequence data, wherein the survey pulse sequence data comprises instructions for controlling the magnetic resonance imaging system to acquire magnetic resonance data descriptive of a three-dimensional volume (124) of the subject; reconstruct (306) the survey magnetic resonance data into a three-dimensional survey image (160); calculate (308) location data by processing the three dimensional survey image with an organ detection algorithm (182), wherein the location data is descriptive of a target region (128); assign (310) a predefined region of interest (130) to the three dimensional survey image using the location data; calculate (312) registration data (164) by registering the baseline medical image to the three dimensional survey image.

    System and method for processing a pointer movement
    6.
    发明授权
    System and method for processing a pointer movement 有权
    用于处理指针运动的系统和方法

    公开(公告)号:US09542012B2

    公开(公告)日:2017-01-10

    申请号:US14380735

    申请日:2013-01-28

    CPC classification number: G06F3/03543 G06F3/038 G06F3/0383 G06F3/04812

    Abstract: A system 100 for real-time processing of a pointer movement provided by a pointing device, the system comprising an output 130 for displaying a pointer 162, 164 at a first position p1 in an image 152, 154, 156, the image comprising a contour; a user input 110 for obtaining pointer movement data 112 from a pointing device 140 operable by a user, the pointer movement data being indicative of a pointer movement v of the pointer from the first position to a second position p2 in the image; and a processor 120 for (i) dampening the pointer movement by reducing the pointer movement along a direction orthogonal 172 to the contour, and (ii) establishing a third position p3 of the pointer based on said dampened pointer movement vd.

    Abstract translation: 一种用于实时处理由指示设备提供的指针移动的系统100,该系统包括用于在图像152,154,156中的第一位置p1处显示指针162,164的输出端130,该图像包括轮廓 ; 用户输入110,用于从可由用户操作的指示设备140获取指针移动数据112,指针移动数据指示指示器从图像中的第一位置到第二位置p2的指针移动v; 以及处理器120,用于(i)通过减小沿着与轮廓正交的方向172的方向的指针移动来衰减指针移动,以及(ii)基于所述衰减的指针移动vd建立指针的第三位置p3。

    OBJECT IMAGE LABELING APPARATUS, METHOD AND PROGRAM
    7.
    发明申请
    OBJECT IMAGE LABELING APPARATUS, METHOD AND PROGRAM 有权
    对象图像标签设备,方法和程序

    公开(公告)号:US20150036900A1

    公开(公告)日:2015-02-05

    申请号:US14374923

    申请日:2013-01-28

    Abstract: The invention relates to a labeling apparatus (1) for labeling structures of an object shown in an object image. A probability map providing unit (3) provides a probability map, the probability map indicating for different labels, which are indicative of different structures of the object, and for different positions in the probability map the probability that the respective structure, which is indicated by the respective label, is present at the respective position, wherein the probability depends on the position in the probability map. The probability map is mapped to the object image by a mapping unit (4), wherein a label assigning unit (5) assigns to a provided contour, which represents a structure in the object image, a label based on the mapped probability map. This allows automatically labeling structures of the object, which are indicated by provided contours in the object image, with relatively low computational efforts.

    Abstract translation: 本发明涉及一种用于标记物体图像中所示物体的结构的标签装置(1)。 概率图提供单元(3)提供概率图,指示不同标签的概率图,其指示对象的不同结构,并且对于概率图中的不同位置,提供由 相应的标签存在于相应位置,其中概率取决于概率图中的位置。 通过映射单元(4)将概率图映射到对象图像,其中,标签分配单元(5)基于映射的概率图来分配表示对象图像中的结构的提供的轮廓。 这允许以相对低的计算量来自动地标记在对象图像中由提供的轮廓指示的对象的结构。

    Resource scheduling in adaptive radiation therapy planning

    公开(公告)号:US11633624B2

    公开(公告)日:2023-04-25

    申请号:US16558509

    申请日:2019-09-03

    Abstract: A resource management system for better operation of a plurality of devices. The system comprises an input interface (IN) for receiving input data including one or more characteristics of at least one work object (P1-P3) and/or including context data. The at least one work object (P1-P3) can be processed by one or more processing devices (Mij). The said processing is specified in a respective work specification (S1-S3). A predictor component (PC) of the system is configured to predict, based on the input data, a change to the work specification. The system comprises an output interface (OUT) for providing output data that represents said predicted change.

    Optimized anatomical structure of interest labelling

    公开(公告)号:US11183293B2

    公开(公告)日:2021-11-23

    申请号:US15524322

    申请日:2015-10-22

    Abstract: A system (100) for detecting and labeling structures of interest includes a current patient study database (102) containing a current patient study (200) with clinical contextual information (706), a statistical model patient report database (104) containing at least one or more prior patient documents containing clinical contextual information (706), an image metadata processing engine (118) configured to extract metadata for preparing an input for an anatomical structure classifier (608), a natural language processing engine (120) configured to extract clinical context information (706) from the prior patient documents, an anatomical structure detection and labeling engine (718) or processor (112), and a display device (108) configured to display findings from the current patient study. The anatomical structure detection and labeling engine (718) or processor (112) is configured to identify and label one or more structures of interest (716) from the extracted metadata and clinical context information (706) and aggregate series level data.

    Visualizing volumetric image of anatomical structure

    公开(公告)号:US10297089B2

    公开(公告)日:2019-05-21

    申请号:US15513184

    申请日:2015-09-18

    Abstract: A system and method is provided for visualizing a volumetric image of an anatomical structure. Using a first view of the volumetric image showing a non-orthogonal cross-section of a surface of the anatomical structure, a local orientation of the surface within the volumetric image is determined, namely by analyzing the image data of the volumetric image. Having determined the local orientation of the surface, a second view is generated of the volumetric image, the second view being geometrically defined by a viewing plane intersecting the surface of the anatomical structure in the volumetric image orthogonally. Accordingly, the surface is shown in a sharper manner in the second view than would typically be the case in the first view. Advantageously, the user can manually define or correct a delineation of the outline of the anatomical structure in a more precise manner. Moreover, various other advantageously uses of such a second view exist, such as facilitating the image interpretation by the clinician, more reliable further automatic analysis, etc.

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