公开(公告)号：US12086979B2

公开(公告)日：2024-09-10

申请号：US17128430

申请日：2020-12-21

申请人： Stichting Radboud universitair medisch centrum ,  CANON MEDICAL SYSTEMS CORPORATION

发明人： Mathias Prokop ,  Brian Mohr ,  Paul Thomson ,  Ewan Hemingway

IPC分类号： G06T7/00

CPC分类号： G06T7/0012 ,  G06T2207/20032 ,  G06T2207/20081

摘要： An apparatus including processing circuitry configured to: acquire a plurality of sets of medical imaging data of a region of a subject, each set of data corresponding to a respective different measurement period; apply a filter to the plurality of medical imaging data sets to produce a plurality of filtered medical imaging data sets corresponding to the different measurement periods, wherein the applying of the filter is such that, for each of the medical imaging data sets, the filtering uses at least some information from the other medical imaging data sets acquired at the different time periods and wherein the applying of the filter comprises applying at least one constraint or condition and the constraint or condition comprises preserving at least one measure of intensity for each medical imaging data set.

公开(公告)号：US20240233095A9

公开(公告)日：2024-07-11

申请号：US18491258

申请日：2023-10-20

申请人： CARNEGIE MELLON UNIVERSITY ,  AnyVision Interactive Technologies, Ltd.

发明人： Marios Savvides ,  Yu Kai Huang ,  Eddie Yu

IPC分类号： G06T5/00 ,  G06T3/40 ,  G06T3/60 ,  G06T5/20 ,  G06T7/20 ,  G06T7/60

CPC分类号： G06T5/002 ,  G06T3/4007 ,  G06T3/60 ,  G06T5/20 ,  G06T7/20 ,  G06T7/60 ,  G06T2207/20032 ,  G06T2207/20044

摘要： Disclosed here are various techniques for improving the testing and training of datasets comprising sequences of skeletal representations performing various actions. The dataset can be denoised by applying various techniques to determine noisy frames within each sequence and eliminating the sequences from the dataset when the number of noisy frames in the sequence is too large. In addition, the dataset may be augmented by various data augmentation techniques to manipulate the skeletal representations, after denoising.

公开(公告)号：US20240233089A1

公开(公告)日：2024-07-11

申请号：US18558605

申请日：2022-05-20

申请人： SHIMADZU CORPORATION

发明人： Ryuji SAWADA

IPC分类号： G06T5/50 ,  G06T5/20 ,  G06T5/70 ,  G06V10/60 ,  G06V20/69

CPC分类号： G06T5/50 ,  G06T5/20 ,  G06T5/70 ,  G06V10/60 ,  G06V20/695 ,  G06T2207/20032 ,  G06T2207/20221

摘要： An image processing method according to this invention includes a step of converting pixel values of pixels in a cell image (31) into relative values; a step of acquiring a frequency-component extraction image (50) that extracts a predetermined frequency component from the converted cell image (40); a step to acquiring a first image (61a) by binarizing the converted cell image (40), and a second image (62) by binarizing the frequency-component extraction image (50); and a step of generating a binary image (70) of the cell image (31) by combining the first image (61) and the second image (62).

公开(公告)号：US11989884B2

公开(公告)日：2024-05-21

申请号：US17859673

申请日：2022-07-07

申请人： XIM LIMITED

发明人： Laurence Pearce ,  Samuel Pearce

IPC分类号： G06K9/00 ,  A61B5/00 ,  A61B5/021 ,  A61B5/103 ,  G06T7/00 ,  G06T7/90 ,  G16H30/40

CPC分类号： G06T7/0016 ,  A61B5/02125 ,  A61B5/1032 ,  A61B5/7275 ,  G06T7/90 ,  G16H30/40 ,  A61B2560/0238 ,  G06T2207/10024 ,  G06T2207/20032 ,  G06T2207/30088 ,  G06T2207/30201

摘要： The present application discloses a method of adjusting a parameter, the parameter being used to derive a physiological characteristic of an individual from an image of the user, the method comprising the steps of: obtaining the parameter for the individual; obtaining a corresponding parameter for a plurality of other individuals within a cohort of the individual; comparing the parameter for the individual with a statistically significant parameter for the plurality of other individuals; and adjusting the parameter for the individual in accordance with the difference between the parameter for the individual and the statistically significant parameter for the plurality of other individuals.

公开(公告)号：US11915402B2

公开(公告)日：2024-02-27

申请号：US17421974

申请日：2019-12-16

申请人： AGFA NV

发明人： Marc Cresens

IPC分类号： G06T5/00 ,  G06T7/00 ,  G01N23/04 ,  G01N23/083

CPC分类号： G06T7/0002 ,  G01N23/04 ,  G01N23/083 ,  G06T5/003 ,  G06T7/97 ,  G01N2223/04 ,  G01N2223/40 ,  G06T2207/10116 ,  G06T2207/20032 ,  G06T2207/30168

摘要： This invention is related to a method to measure and calculate a point spread function PSF of an image detector system based on the analysis of quantum noise that is present in generic image acquisition data, and that is modulated by the transfer function of the digital imaging system. The method allows the calculation of the sharpness of a system without the need for image phantom recordings.

公开(公告)号：US11907331B1

公开(公告)日：2024-02-20

申请号：US18483054

申请日：2023-10-09

申请人： HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY

发明人： Mingliang Xie ,  Yixiong Yang ,  Zhihao Jiang

IPC分类号： G06F17/18 ,  G06T5/20 ,  G06T5/00

CPC分类号： G06F17/18 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10056 ,  G06T2207/20032

摘要： Disclosed in the present invention are a method and system for evaluating a fractal dimension of particle matter in a dispersing system. The method includes: setting that distribution of a particle radius r of particle matter in a dispersing system obeys logarithmic normal distribution lnr˜N(μ, σ2) with an expectation μ and a standard deviation σ, and determining the value of the standard deviation σ; and evaluating a fractal dimension Dƒ of the dispersing system on the basis of the standard deviation σ, an evaluation formula being: Dƒ=1/σ. The present invention provides the formula for evaluating the fractal dimension of particle distribution in a dispersing system. When the formula is used to calculate a fractal dimension, only particle radius distribution of particle matter needs to be measured, and no geometrical morphology feature parameter of the particle matter needs to be measured. Factors such as particle morphology and the like do not affect the fractal dimension. Therefore, the measurement method of the present invention can reduce an error resulting from experimental measurements, can acquire a fractal dimension of particle matter quickly and efficiently, and is especially adapted to data analysis of a dispersion system and a particle swarm.

公开(公告)号：US20230368324A1

公开(公告)日：2023-11-16

申请号：US18246132

申请日：2021-05-08

申请人： BEIJING WODONG TIANJUN INFORMATION TECHNOLOGY CO., LTD. ,  BEIJING JINGDONG CENTURY TRADING CO., LTD.

发明人： Fangru ZHOU ,  Shan AN ,  Mei YANG

IPC分类号： G06T1/00 ,  G06T5/20 ,  G06T7/13 ,  G06V10/24 ,  G06V20/70

CPC分类号： G06T1/0021 ,  G06T5/20 ,  G06T7/13 ,  G06V10/245 ,  G06V20/70 ,  G06T2207/20032 ,  G06T2207/20084 ,  G06V2201/07

摘要： Provided are a method and apparatus of embedding an image in video, and a method and apparatus of acquiring a plane prediction model, relating to the field of image processing. The method includes inputting a video frame image of a video into a plane prediction model to obtain a predicted plane mask of the video frame image, the plane prediction model being obtained by training a deep learning model using training images with labels having plane detection frames and plane masks; embedding the image to be embedded into the predicted plane mask of the video frame image.

公开(公告)号：US20230334687A1

公开(公告)日：2023-10-19

申请号：US18153856

申请日：2023-01-12

申请人： Adeia Imaging LLC

发明人： Ankit Jain ,  Priyam Chatterjee ,  Kartik Venkataraman

IPC分类号： G06T7/593 ,  G06T7/44 ,  G06T7/13 ,  G06T7/11 ,  G06T7/194 ,  G06T5/30 ,  G06T7/136 ,  G06T5/50

CPC分类号： G06T7/593 ,  G06T7/44 ,  G06T7/13 ,  G06T7/11 ,  G06T7/194 ,  G06T5/30 ,  G06T7/136 ,  G06T5/50 ,  G06T2200/04 ,  G06T2207/10012 ,  G06T2207/10028 ,  G06T2207/20036 ,  G06T2207/20028 ,  G06T2207/20192 ,  G06T2207/20032

摘要： Systems and methods for hybrid depth regularization in accordance with various embodiments of the invention are disclosed. In one embodiment of the invention, a depth sensing system comprises a plurality of cameras; a processor; and a memory containing an image processing application. The image processing application may direct the processor to obtain image data for a plurality of images from multiple viewpoints, the image data comprising a reference image and at least one alternate view image; generate a raw depth map using a first depth estimation process, and a confidence map; and generate a regularized depth map. The regularized depth map may be generated by computing a secondary depth map using a second different depth estimation process; and computing a composite depth map by selecting depth estimates from the raw depth map and the secondary depth map based on the confidence map.

公开(公告)号：US20230306562A1

公开(公告)日：2023-09-28

申请号：US18126317

申请日：2023-03-24

申请人： Arizona Board of Regents on behalf of Arizona State University

发明人： Jiaxuan Pang ,  DongAo Ma ,  Jiangming Liang

IPC分类号： G06T5/00 ,  G06T7/00 ,  G06T5/10 ,  G16H30/40 ,  G16H50/20

CPC分类号： G06T5/005 ,  G06T7/0012 ,  G06T5/10 ,  G16H30/40 ,  G16H50/20 ,  G06T2207/30004 ,  G06T2207/20081 ,  G06T2207/20048 ,  G06T2207/20032 ,  G06T2207/20192 ,  G06T2207/20084 ,  G06T2207/20021 ,  G06T2207/20092

摘要： Described herein are means for performing self-supervised visual representation learning using order and appearance recovery on a vision transformer. An exemplary system having a processor and memory is specially configured to execute instructions including: receiving medical image training data; selecting a medical image; generating a first perturbed image by applying local pixel shuffling and other image perturbations and outputting a first patchified perturbed image; generating a second randomized patchified image by patchifying and applying a random permutation to the original image; inputting the first patchified perturbed image and the second randomized patchified image into first and second transformer encoders which each generate and then share first and second generated weights through the recovery of both and patch order appearance from each image; and outputting a pre-trained AI model to perform medical image diagnosis on a new medical image absent from the training data input received by the system.

公开(公告)号：US20230305802A1

公开(公告)日：2023-09-28

申请号：US18135715

申请日：2023-04-17

申请人： Imagination Technologies Limited

发明人： Timothy Lee

IPC分类号： G06F7/02 ,  G06F17/18

CPC分类号： G06F7/026 ,  G06F17/18 ,  G06T2207/20032

摘要： Median values for a stream of received data values in a data processing system (e.g. an image processing system) are determined. A first median value of the received data values within a first subset of data values of the received stream is determined, and intermediate data used for determining the first median value is stored. The stored intermediate data is used to determine a median value of the received data values within a second subset of data values of the received stream, wherein the second subset at least partially overlaps with the first subset. The determined median values are outputted for use in the data processing system, e.g. for further processing.