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公开(公告)号：US20240037754A1
公开(公告)日：2024-02-01
申请号：US18266030
申请日：2021-12-07
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： JÖRG SABCZYNSKI , RAFAEL WIEMKER , TOBIAS KLINDER
CPC classification number: G06T7/13 , G06T7/0012 , G06T17/20 , G16H30/40 , A61B6/5205 , G06T2207/10081 , G06T2210/41 , G06T2207/30028 , G06T2210/56
Abstract: A method for identifying a material boundary within volumetric image data is based on use of a model boundary transition function, which models the expected progression of voxel values across the material boundary, as a function of distance. Each voxel is taken in turn, and voxel values within a subregion surrounding the voxel are fitted to the model function, and the corresponding fitting parameters are derived, in addition to a parameter relating to quality of the model fit. Based on these parameters for each voxel, for each of at least a subset of the voxels, a candidate spatial point is identified, estimated to lie on the material boundary within the 3-D image dataset. The result is a cloud of candidate spatial points which spatially correspond to the outline of the boundary wall. Based on these, a representation of the boundary wall can be generated, for example a surface mesh.
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12.发明公开公开(公告)号：US20240005455A1
公开(公告)日：2024-01-04
申请号：US18038562
申请日：2021-11-28
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： RAFAEL WIEMKER , LIRAN GOSHEN , HEIKE CAROLUS RUPPERTSHOFEN , TOBIAS KLINDER
CPC classification number: G06T5/002 , G06T11/008 , G06T7/12 , G06T5/20 , G06T2211/404 , G06T2210/41 , G06T2207/30104 , G06T2207/30028 , G06T2207/20081 , G06T2207/10088 , G06T2207/10081
Abstract: The present invention relates to edge restoration. In order to improve a restoration of the artificially created cleansed edges, an apparatus is proposed to automatically restore image edges after digital subtraction of digital material substitution to optimally resemble image edges in unmodified locations. The appearance of edges is machine-learned in an unsupervised non-analytical way from unmodified locations, and then, after digital suppression or digital material substitution, applied to the artificially created cleansed edges.
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公开(公告)号：US20220101626A1
公开(公告)日：2022-03-31
申请号：US17426759
申请日：2020-01-21
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： MATTHIAS LENGA , RAFAEL WIEMKER , TOBIAS KLINDER , MARTEN BERGTHOLDT , HEIKE CAROLUS
IPC: G06V10/776 , G06T3/00 , G06V10/82 , G06N20/00
Abstract: Presented are concepts for obtaining a confidence measure for a machine learning model. One such concept process input data with the machine learning model to generate a primary result. It also generate a plurality of modified instances of the input data and processes the plurality of modified instances of the input data with the machine learning model to generate a respective plurality of secondary results. A confidence measure relating to the primary result is determined based on the secondary results.
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公开(公告)号：US20220101617A1
公开(公告)日：2022-03-31
申请号：US17298038
申请日：2019-11-22
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： RAFAEL WIEMKER , MUKTA JOSHI , JORG SABCZYNSKI , TOBIAS KLINDER
IPC: G06T19/20
Abstract: A three-dimensional virtual endoscopy rendering of a lumen of a tubular structure is based on both non-spectral and spectral volumetric imaging data. The three-dimensional virtual endoscopy rendering includes a 2-D image of a lumen of the tubular structure from a viewpoint of a virtual camera of a virtual endoscope passing through the lumen. In one instance, the three-dimensional virtual endoscopy rendering is similar to the view which is provided by a physical endoscopic video camera inserted into the actual tubular structure and positioned at that location. The non-spectral volumetric image data is used to determine an opacity and shading of the three-dimensional virtual endoscopy rendering. The spectral volumetric image data is used to visually encode the three-dimensional virtual endoscopy rendering to visually distinguish an inner wall of the tubular structure and structure of interest on the wall.
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公开(公告)号：US20200022609A1
公开(公告)日：2020-01-23
申请号：US16465629
申请日：2017-12-05
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： CRISTIAN LORENZ , PETER BORNERT , TOBIAS KLINDER
Abstract: The invention provides for a medical imaging system (700) comprising: a memory (734) for storing machine executable instructions (740), a display (732) for rendering a user interface (800), and a processor (730). Execution of the machine executable instructions causes the processor to receive (1000) three dimensional medical image data (746) descriptive of a region of interest (709) of a subject (718). The region of interest comprises a spine (200). Execution of the machine executable instructions further causes the processor to receive (1002) a set of spinal coordinate systems (748) each descriptive of a location and an orientation of spinal vertebrae in the three dimensional medical image data. The set of spinal coordinate systems further comprises a set of spine centerline positions (102) each positioned on a spine centerline (108). Execution of the machine executable instructions further causes the processor to receive (1004) a mapping (750) between the set of spinal coordinate systems and a simplified coordinate system. The simplified coordinate system comprises a spinal height (300) descriptive of a position along the spine centerline. The simplified coordinate system further comprises a rotational orientation relative to a local vertebrae orientation. The simplified coordinate system further comprises an offset from the spine centerline. Execution of the machine executable instructions further cause the processor to repeatedly receive (1006) a simplified coordinate (752) of the simplified coordinate system from the user interface. Execution of the machine executable instructions further cause the processor to repeatedly calculate (1008) a spinal image rendering (754). Calculating the spinal image rendering comprises using the mapping to transform the simplified coordinate into the set of spinal coordinate systems to determine an image location in the three dimensional medical image data. Execution of the machine executable instructions further cause the processor to repeatedly render (1010) the spinal image rendering on the display.
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Patent Agency Ranking
公开(公告)号：US20230144823A1
公开(公告)日：2023-05-11
申请号：US17917573
申请日：2021-04-06
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： RAFAEL WIEMKER , LIRAN GOSHEN , JÖRG SABCZYNSKI , TOBIAS KLINDER
CPC classification number: G06T11/008 , G06T5/50 , G06V10/751 , G06T2207/10024 , G06T2207/10081 , G06T2207/20081 , G06T2207/20221
Abstract: The invention refers to an apparatus (110) for generating an augmented image comprising a) a base image providing unit (111), wherein the base image is generated based on a combination of spectral image data, b) a contrast image providing unit (112), wherein the contrast image is generated based on a different combination of the spectral image data, c) a degree of saliency determination unit (113), wherein the degree of saliency is indicative of a difference between an image value of a voxel of the contrast image and an image value of a corresponding voxel of a predetermined template image, and d) an augmented image generation unit (114) for generating an augmented base image of the object by augmenting voxels of the base image based on the degree of saliency. The invention allows to provide the augmented base image with an improved image quality and information content.
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公开(公告)号：US20230050190A1
公开(公告)日：2023-02-16
申请号：US17797786
申请日：2021-02-05
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： CHRISTIAN BUERGER , TOBIAS KLINDER , ALEXANDER SCHMIDT-RICHBERG
Abstract: A method and system for mapping boundary detecting features of at least one source triangulated mesh of known topology to a target triangulated mesh of arbitrary topology. A region of interest in a volumetric image associated with each triangle of the target triangulated mesh is provided to a feature mapping network. The feature mapping network assigns a feature selection vector to each triangle of the target triangulated mesh. The associated region of interest and assigned feature selection vector for each triangle of the target triangulated mesh are provided to a boundary detection network. A predicted boundary based on features of the associated region of interest selected by the assigned feature selection vector is obtained from the boundary detection network.
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公开(公告)号：US20230038965A1
公开(公告)日：2023-02-09
申请号：US17797793
申请日：2021-02-11
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： CHRISTIAN BUERGER , TOBIAS KLINDER , JENS VON BERG , ASTRID RUTH FRANZ , MATTHIAS LENGA , CRISTIAN LORENZ
Abstract: Presented are concepts for initialising a model for model-based segmentation of an image which use specific landmarks (e.g. detected using other techniques) to initialize the segmentation mesh. Using such an approach, embodiments need not be limited to predefined model transformations, but can initialise a segmentation mesh with arbitrary shape. In this way, embodiments may provide for an image segmentation algorithm that not only delivers a robust surface-based segmentation result but also does so for strongly varying target structure variations (in terms of shape).
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公开(公告)号：US20210082108A1
公开(公告)日：2021-03-18
申请号：US16642275
申请日：2018-08-31
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： CHRISTIAN BUERGER , TOBIAS KLINDER , JENS VON BERG , CRISTIAN LORENZ
Abstract: The invention relates to an image processing device (10) comprising a data input (11) for receiving a 3D diagnostic image and a segmentation unit (12) for segmenting a thoracic cavity, a pelvic cavity, an abdominopelvic cavity or a combination of a thoracic cavity and an abdominopelvic cavity in the 3D diagnostic image and for determining a boundary surface thereof. The device also comprise a surface texture processor (13) for determining a surface texture for the boundary surface by projecting image information from a local neighborhood of the boundary surface in the 3D diagnostic image onto the boundary surface. The device comprises an output (14) for outputting a visual representation of at least one flat anatomical structure, comprising one or more ribs, a sternum, one or more vertebrae and/or a pelvic bone complex, adjacent to the body cavity by applying and visualizing the surface texture on the boundary surface.
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公开(公告)号：US20190117186A1
公开(公告)日：2019-04-25
申请号：US16093175
申请日：2017-04-13
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： TOBIAS KLINDER , CHRISTIAN LORENZ , IRINA WAECHTER-STEHLE
Abstract: The present invention provides an improved ultrasound imaging system arranged to evaluate a set of acquired 3D image data in order to provide a compounded 3D image of a fetus irrespective of its position and movement. This is achieved by providing an ultrasound imaging system comprising: an ultrasound probe having an ultrasound transducer array operable to acquire at different look directions a plurality of three dimensional (3D) ultrasound image frames of a volumetric region comprising a fetus; a compound image memory for storing the acquired plurality of the 3D ultrasound image frames and an articulated fetal model with a common fetal structure; an ultrasound image processor responsive to the plurality of 3D ultrasound image frames, said processor comprising a fetal segmentation unit arranged to segment each 3D image frame based on the articulated fetal model thereby providing a plurality of spatially related 3D images of the volumetric region; and an image quality analyzer coupled to the segmentation unit and arranged to determine, based on the articulated fetal model, an overall confidence value of the plurality of the 3D images, said image quality analyzer is further arranged to compare the overall confidence value with an image compounding threshold.
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