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公开(公告)号:US20240420325A1
公开(公告)日:2024-12-19
申请号:US18721224
申请日:2022-12-19
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: ASHER GRINGAUZ , LIRAN GOSHEN
IPC: G06T7/00
Abstract: A mechanism for processing input 3D image data. In a first phase, the input 3D image data is separately processed using one or more neural networks to produce one or more modified 3D image data. In a second phase, the input 3D image data and the modified 3D image data are processed using neural networks to produce an output. The neural networks that produce the modified 3D image data are configured to process slices or sub-volumes of the input 3D image data to produce modified 3D image data.
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公开(公告)号:US20210007698A1
公开(公告)日:2021-01-14
申请号:US17041172
申请日:2019-03-22
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: MORDECHAY PINCHAS FREIMAN , LIRAN GOSHEN
Abstract: A system (300) includes a memory (324) configured to store an inflammation map generator module (328). The system further includes a processor (322) configured to: receive at least one of spectral projection data or spectral volumetric image data, decompose the at least one of spectral projection data or spectral volumetric image data using a two-basis decomposition to generate a set of vectors for each basis represented in the at least one of spectral projection data or spectral volumetric image data, compute a concentration of each basis within a voxel from the set of vectors for each basis, and determine a concentration of at least one of fat or inflammation within the voxel from the concentration of each basis. The system further includes a display configured to display the determined concentration of the at least one of fat or inflammation.
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公开(公告)号:US20240090849A1
公开(公告)日:2024-03-21
申请号:US18038546
申请日:2021-11-28
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: RAFAEL WIEMKER , LIRAN GOSHEN , HANNES NICKISCH , CLAAS BONTUS , TOM BROSCH , JOCHEN PETERS , ROLF JÜRGEN WEESE
IPC: A61B5/00 , A61B5/055 , G06V10/44 , G06V10/764
CPC classification number: A61B5/7425 , A61B5/055 , G06V10/44 , G06V10/764
Abstract: The present invention relates to multispectral imaging. In order to improve an identification of relevant multispectral material transitions (in particular caused by injected contrast agent), an apparatus is proposed to use the local maxima of the variances and/or covariances of the intensities of the multi-channel images to locate material transitions. In comparison to gradient vectors, the local variance is not directed and not prone to noise. An alternative apparatus is proposed to use the local covariance deficits of the intensities of the multi-channel images to locate material transitions. The proposed alternative approach is independent of spatial drifts across the image volume.
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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:US20230334732A1
公开(公告)日:2023-10-19
申请号:US18035121
申请日:2021-10-28
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: RAFAEL WIEMKER , DANIEL BYSTROV , LIRAN GOSHEN
CPC classification number: G06T11/008 , G06T15/08 , G06T15/06 , G06T2211/40 , G06T2210/41
Abstract: A method for generating an image representation of slices through a body based on tomographic imaging data for the body. The method comprises processing reconstructed tomographic image slices to selectively embed in each slice image information from at least one 3D volume rendering of the slice plane within the 3D tomographic image dataset. This is done through a selection process wherein, based on a set of pre-defined criteria, a decision is made for each pixel in each reconstructed tomographic slice as to whether the pixel value should be replaced with a new, modified pixel value determined based on the at least one volume rendering. This may comprise simply swapping the pixel value for the value of the corresponding pixel value in the volume rendering, or it may comprise a more complex process, for instance blending the two values, or adjusting a transparency of the pixel value based on the at least one volume rendering.
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公开(公告)号:US20240312086A1
公开(公告)日:2024-09-19
申请号:US18276665
申请日:2022-02-08
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: LIRAN GOSHEN
CPC classification number: G06T11/60 , G06T5/70 , G06T2207/30168
Abstract: A system (DSS) and related method for synthesizing training data or machine learning, based on a set (TD) including two types of training imagery, high image quality, IQ, imagery and low IQ imagery. The system comprises a data synthesizer (DSY), configured to register the at least two types of imagery and to transfer i) image information from high IQ imagery to the registered low IQ imagery to obtain synthesized high IQ imagery, or ii) image information from low IQ imagery to the registered high IQ imagery to obtain synthesized low IQ imagery. The synthesized data may be used for improved training of machine learning models for IQ enhancement.
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公开(公告)号:US20240311974A1
公开(公告)日:2024-09-19
申请号:US18276677
申请日:2022-02-14
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: LIRAN GOSHEN
CPC classification number: G06T5/60 , G06T5/70 , G06T5/94 , G06T2207/10081 , G06T2207/10088 , G06T2207/10116 , G06T2207/20081 , G06T2207/20084 , G06T2207/30004
Abstract: A training system for a target machine learning model for image enhancement, and related methods. The system comprises a framework of two machine learning models (G1, G2) of the generative type, one such model (G1) being part of the target machine learning model. The training is based on a training data set including at least two types of training imagery, high image quality, IQ, imagery and low IQ imagery, the training input image (I) being one of the high IQ type. The generative network (G1) processes the training input image (I) of the high IQ type to produce a training output image (I) having reduced IQ. The target machine learning model (TM) further produces, based on the training output image (I) and the training input image (I) of the high IQ type, a second training output image (I). The second generator network (G2) estimates, from the second training output image (I), an estimate of the training input image of the high IQ type. A training controller (TC) adjusts parameters of the machine learning model framework, based a deviation between the estimate of the training input image of the high IQ type, and the said training input image (I) of the high IQ type.
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公开(公告)号:US20230360201A1
公开(公告)日:2023-11-09
申请号:US18024595
申请日:2021-08-26
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: LUDMILA NATANZON , LIRAN GOSHEN
CPC classification number: G06T7/0012 , G06T11/008 , G06T2207/10081 , G06T2207/20076 , G06T2210/41
Abstract: A computer system (MD) and relates method for spectral-data based material decomposition. The system comprises a statistical module (SM) configured to fit, per patch in input spectral imagery, a set of probability distributions (Pk) to a respective vector spectral diagram (5) for the respective patch (A). The patch is one of a plurality of patches in the input spectral imagery obtained by operation of a spectral imaging apparatus. The probability distributions are combinable into a probability map indicative of material type probabilities per image location in the input spectral imagery.
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公开(公告)号:US20200258615A1
公开(公告)日:2020-08-13
申请号:US16753792
申请日:2018-10-02
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: LIRAN GOSHEN
Abstract: The present invention relates to an image processing device (10) comprising a data input (11) for receiving volumetric image data comprising a plurality of registered volumetric images of an imaged object, a noise modeler (12) for generating a noise model indicative of a spatial distribution of noise in each of the plurality of registered volumetric images, a feature detector (13) for detecting a plurality of image features taking the volumetric image data into account, and a marker generator (14) for generating a plurality of references indicating feature positions of a subset of the plurality of detected image features, in which said subset corresponds to the detected image features that are classified as difficult to discern on a reference volumetric image in the plurality of registered volumetric images based on a classification and/or a visibility criterium, wherein the classification and/or the visibility criterium takes the or each noise model into account.
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公开(公告)号:US20250061549A1
公开(公告)日:2025-02-20
申请号:US18719922
申请日:2022-12-16
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor: ASHER GRINGAUZ , LIRAN GOSHEN
Abstract: The invention provides a computer-implemented method for image-processing of CT images, the method comprising performing one or more pre-processing steps on a CT image so as to obtain a pre-processed CT image, wherein the one or more pre-processing steps comprise applying an edge-preserving denoising algorithm; and performing an adaptive spike suppression algorithm on the pre-processed CT image to obtain a processed CT image, the adaptive spike suppression algorithm being configured such that the processed CT image has a reduced number of spikes as compared to the pre-processed CT image.
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