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公开(公告)号：US11803978B2
公开(公告)日：2023-10-31
申请号：US17684470
申请日：2022-03-02
CPC分类号： G06T7/38 , G06T3/0075 , G06T5/002 , G06T5/50 , G06T7/0002 , G06T7/571 , G06T2207/10056 , G06T2207/10148 , G06T2207/30168
摘要： A method of generating a composite image from multiple images captured for a subject is disclosed. In some embodiments, the method may include receiving, via an image capturing device, a plurality of sets of images of at least a portion of a subject. The images within a set of images may be captured at a plurality of vertical positions with respect to an associated fixed section of a horizontal plane. The method may further include generating a plurality of focus-stacked images corresponding to the plurality of sets of images, for example, by combining the images in the associated set of images. The method may further include aligning the plurality of focus-stacked images in the horizontal plane based on a horizontal coordinate transformation model to generate a composite image representing the subject.
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公开(公告)号：US20230298162A1
公开(公告)日：2023-09-21
申请号：US17655220
申请日：2022-03-17
CPC分类号： G06T7/0012 , G06T7/38 , G06T5/50 , G06T5/20 , G06V10/82 , G06V10/443 , G06T2207/10088 , G06T2207/20081 , G06T2207/20084
摘要： For reconstruction in medical imaging using phase correction, a machine learning model is trained for reconstruction of an image. The reconstruction may be for a sequence without repetitions or may be for a sequence with repetitions. Where repetitions are used, rather than using just a loss for that repetition in training, the loss based on an aggregation of images reconstructed from multiple repetitions may used to train the machine learning model. In either approach, a phase correction is applied in machine training. A phase map is extracted from output of the model in training or extracted from the ground truth of the training data. The phase correction, based on the phase map, is applied to the ground truth and/or the output of the model in training. The resulting machine-learned model may better reconstruct an image as a result of having been trained using phase correction.
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公开(公告)号：US20230274437A1
公开(公告)日：2023-08-31
申请号：US18013297
申请日：2021-06-24
IPC分类号： G06T7/00 , G06T7/38 , G06T7/174 , G06V10/82 , G06V10/774 , G06V10/26 , G06T7/70 , G16H30/40 , A61B6/00 , A61B6/12
CPC分类号： G06T7/0016 , A61B6/12 , A61B6/504 , G06T7/38 , G06T7/70 , G06T7/174 , G06V10/26 , G06V10/82 , G06V10/774 , G16H30/40 , G06T2207/10121 , G06T2207/30101
摘要： The present invention relates to localizing stenoses. In order to provide improved and facilitated stenosis localization, a device (10) for localizing a stenosis in an angiogram is provided. The device comprises an image supply (12), a data processor (14) and an output (16). The image supply is configured to provide a first image (18) and a second image (20). The first image is an angiographic image that comprises image data representative of a region of interest of a vascular structure in a visible and distinct manner, wherein the vascular structure comprises at least one vessel with at least a part of a stenosis. The second image is a treatment X-ray image that comprises image data representative of at least a part of an interventional device arranged within the vascular structure in a state when the stenosis of the vascular structure is treated. The data processor is configured to identify and delineate the stenosis in the first image based on the first image and at least based on device-related content present in the second image. The data processor is also configured to detect the interventional device in the second image, and to provide a direct identification of structures in the first image that are most similar to the device as detected in the second image. The output is configured to provide an indication of the stenosis.
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公开(公告)号：US20230206495A1
公开(公告)日：2023-06-29
申请号：US17564766
申请日：2021-12-29
CPC分类号： G06T7/80 , G06T7/38 , G06T7/215 , G06T7/11 , G06T2207/20004 , G06T2207/30244
摘要： A device, system, and/or method may be used to provide an adaptive alignment. A first video data may be received. The first video data may comprise a first video frame and a second video frame. Sensor pose data may be determined. The pose data may be associated with the first video frame and the second video frame. An adjusted video frame may be determined based on the first video frame and a motion indicated by the pose data. A frame adjustment value may be determined by comparing a first pixel from the adjusted video frame to a second pixel from the second video frame. The frame adjustment value may correlate the pose data to the first video data. A second video data may be determined by applying the frame adjustment value.
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公开(公告)号：US11688084B1
公开(公告)日：2023-06-27
申请号：US17370761
申请日：2021-07-08
CPC分类号： G06T7/38 , G06T7/60 , G06T15/205 , G06T19/006
摘要： An artificial reality system is configured to more accurately and efficiently construct a 3D virtual representation of a real-world environment from a set of 2D images. The system identifies points and/or lines within the images that define a plane along an orientation and then performs a planar sweep along a perpendicular path to identify surfaces in which the plane intersects with multiple points. Points that appear to be in the same plane are “collapsed” into a cohesive plane to conserve processing power by estimating and/or storing parameters for the cohesive plane, rather than all of the individual 3D points. In this way, the system also “averages out” random variation in the planar surface that would otherwise result from random noise in the estimation of the individual 3D points. The system may then generate a 3D map from a constrained alignment of all of the identified planes.
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公开(公告)号：US11678955B2
公开(公告)日：2023-06-20
申请号：US17146053
申请日：2021-01-11
申请人： CVSTOM Co.
发明人： Kjeld A. Aamodt
CPC分类号： A61C7/002 , A61C9/0006 , A61C9/0053 , A61C19/06 , G06T7/0012 , G06T7/38 , G16H30/20 , G16H30/40 , G06T2207/10081 , G06T2207/30036 , G06T2207/30204
摘要： A method of orthodontic treatment planning for a patient includes receiving three-dimensional intraoral surface scan data of a dentition of the patient, receiving three-dimensional volumetric scan data of the dentition of the patient, and overlaying the intraoral surface scan data and the volumetric scan data to generate an integrated patient model comprising a root of at least one tooth having a longitudinal axis. The method further includes determining, for use in planning an orthodontic treatment, a center of rotation of the at least one tooth, wherein the center of rotation is defined as a point located a predetermined distance from a base of the root to an apex of the root along the longitudinal axis of the at least one tooth in the integrated patient model.
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公开(公告)号：US11648422B2
公开(公告)日：2023-05-16
申请号：US16596817
申请日：2019-10-09
申请人： University of Macau
发明人： Greta S. P. Mok
CPC分类号： A61N5/1071 , A61B6/032 , A61B6/037 , G06T7/33 , G06T7/38 , A61N2005/1087 , G06T2207/10081 , G06T2207/10104 , G06T2207/10108
摘要： The present disclosure provides a system comprising a SPECT or PET device; a CT device; and a computer comprising memory and a processor in communication with the memory, the memory comprising a computer application program for a method of performing dosimetric analysis of an organ. The computer application program is executable by the processor to perform the method. The method comprising receiving single photon emission computed tomography (SPECT) or positron emission tomography (PET) images at time instances, the SPECT or PET images relating to the organ. The method then receives a computed tomography (CT) image at one of the time instances, the CT image relating to the organ. Virtual CT images are then generated at the other time instances based on the received SPECT or PET images and the CT image. An absorbed dose of ionising radiation on the organ can then be measured based on the received SPECT or PET images, the received CT image, and the generated virtual CT images. The method generates the virtual CT images using any one of: SPECT to SPECT (or PET to PET) registration, CT to SPECT (PET) registration, and SPECT (PET) to CT registration.
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公开(公告)号：US20180259341A1
公开(公告)日：2018-09-13
申请号：US15453200
申请日：2017-03-08
发明人： OMAR ABOUTALIB , BICH M. THAI , ALEX C. FUNG
IPC分类号： G01C21/16 , G08G5/02 , B64C39/02 , G01C21/00 , B63B49/00 , G08G5/00 , F41G7/00 , G06T7/246 , G06T7/579 , G06T7/33 , G06T7/38 , G06T7/73
CPC分类号： G01C21/165 , B63B49/00 , B63B2213/02 , B64C39/024 , F41G7/008 , G01C21/005 , G06T7/248 , G06T7/337 , G06T7/38 , G06T7/579 , G06T7/74 , G08G5/0047 , G08G5/025
摘要： An adaptive navigation system for airborne, ground and dismount applications. The system performs adaptive fusion of all sensed signals, information sources, and databases that may be available on a single or multiple cooperative platforms to provide optimal Positioning, Navigation, and Timing (PNT) state. To reduce error building over time, the system incorporates the concept of geo-registration fusion into the ANAGDA filter. The architecture of the ANAGDA filter consists of user/application configurable functionalities in hierarchical layers. The sensing layer senses the environment and contains the required databases such as surveyed landmarks, and Digital Terrain Elevation Data/Digital Elevation Model (DTED/DEM). The processing layer has a Smart Sensor Resource Manager which is a performance-based sensor/feature selection module. The measurement abstraction layer isolates the filter from hardware specifics. The fusion layer performs the Inertial Measurement Unit (IMU) data integration with sensor measurements, and feature fusion.
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公开(公告)号：US10055831B2
公开(公告)日：2018-08-21
申请号：US15446202
申请日：2017-03-01
CPC分类号： G06K9/0063 , B64C39/024 , B64C2201/127 , B64D47/08 , G01C11/02 , G05D1/0044 , G05D1/0088 , G05D1/0094 , G05D1/101 , G06K9/00637 , G06K9/4604 , G06K9/6215 , G06T7/0004 , G06T7/30 , G06T7/38 , G06T2207/10032 , G06T2207/20101 , G06T2207/20104 , G06T2207/30108 , G06T2207/30184 , H04N1/00204 , H04N5/2258 , H04N5/23203 , H04N5/23216 , H04N7/185
摘要： An unmanned autonomous vehicle (aerial or ground) assessment and reporting system may conduct micro scans of interior portions of a structure, such as walls, windows, doorways, stairs, and the like. Scan data from one or more sensor types may be compared with stored profile data from a library of profiles using computer vision or other matching techniques to identify characteristics, defects, damage, construction materials, etc. An adaptive response system may modify the types of sensors used for scanning and/or the scanning pattern itself based on matched profile data. Modifications to the scanning process are implemented in real-time based on identified characteristics of the interior portions of the structure.
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公开(公告)号：US10013749B2
公开(公告)日：2018-07-03
申请号：US15581060
申请日：2017-04-28
申请人： NOVARTIS AG
发明人： Steven T. Charles
CPC分类号： G06T5/50 , A61B3/0025 , A61B3/0041 , A61B3/102 , A61B3/13 , A61B3/145 , A61B90/37 , A61B2090/3735 , G06T7/33 , G06T7/38 , G06T2207/10016 , G06T2207/10056 , G06T2207/10101 , G06T2207/20016 , G06T2207/30041 , G06T2207/30101 , G06T2210/41 , G06T2210/44
摘要： Resolution enhancement of OCT images during ophthalmic surgery may be performed with an OCT scanning controller that interfaces to an OCT scanner used with a surgical microscope. Real-time OCT images may be acquired by the OCT scanner, while previously acquired high resolution OCT images are accessed by the OCT scanning controller. The high resolution OCT images may be morphed based on the real-time OCT images to match a deformation of the eye. The morphed high resolution OCT images may be displayed during surgery.
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