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101.发明授权公开(公告)号：US10818011B2
公开(公告)日：2020-10-27
申请号：US16236366
申请日：2018-12-29
Inventor： Qingmao Hu , Liyilei Su , Xiaodong Zhang , Xianjun Fu
IPC: G06T7/00 , G06T7/13 , A61B6/00 , G06T7/143 , G06T5/00 , G06T7/194 , G06T7/12 , G06T5/40 , G06T7/136
Abstract: The present application relates to the technical field of image recognition, and provides a carpal segmentation and recognition method, including: performing threshold segmentation on a carpal region of interest on a child orthotopic wrist X-ray image based on an adaptive threshold segmentation manner of variable threshold segmentation windows, and extracting edge information of the carpal region of interest based on an edge detection manner; combining a binarized image obtained by performing the threshold segmentation with the extracted edge information to obtain an initial segmentation image; performing carpal recognition on the initial segmentation image by using a carpal anatomy priori model to obtain an initial recognition image including information of each carpal bone; and performing boundary optimization on the initial recognition image, and outputting a carpal recognition image obtained after the boundary optimization is performed.
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公开(公告)号：US10790537B2
公开(公告)日：2020-09-29
申请号：US15773805
申请日：2016-11-12
Inventor： Yongbing Tang , Xiaolong Zhang , Fan Zhang
IPC: H01M10/052 , H01M10/0525 , H01M4/583 , H01M10/0567 , H01M10/058 , H01M4/66 , H01M4/48 , H01M4/58 , H01M4/38 , H01M2/02 , H01M2/14 , H01M2/16 , H01M4/1393 , H01M4/1397 , H01M10/04 , H01M10/0569 , H01M6/16 , C01B32/184 , H01M4/02
Abstract: A secondary battery and its preparation method, the secondary battery having a negative electrode containing a negative current collector and no negative active material; an electrolyte having an electrolyte salt and an organic solvent; a separator; a positive electrode having a positive active material layer containing a positive active material, wherein the positive active material comprises a material having a layered crystal structure; and a battery case used for packaging. Main active component of the secondary battery is the positive active material having a layered crystal structure, which is environmentally-friendly and low in cost; meanwhile, negative active material is not needed by the second battery system, thereby remarkably reducing the weight and cost of the battery and improving the battery energy density. The reaction mechanism adopted by the secondary battery significantly increases the working voltage of the battery and further improves the energy density of the battery.
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公开(公告)号：US10746833B2
公开(公告)日：2020-08-18
申请号：US15986462
申请日：2018-05-22
Inventor： Lei Zhang , Yiu-Cho Chung , Xin Liu , Xiaoqing Hu , Hairong Zheng
IPC: G01R33/565 , G01R33/56 , A61B5/02 , G06T11/00 , G01R33/50 , A61B5/055 , A61B5/00 , G01R33/563 , A61B5/03
Abstract: A magnetic resonance vessel wall imaging method and device. The method comprises: applying a set pulse sequence into an imaging region, wherein the set pulse sequence comprises, in chronological order, a Delay Alternating with Nutation for Tailored Excitation (DANTE) pulse train, a variable flip angle train of a three-dimensional fast spin echo (SPACE), and a flip-down pulse train (S110); acquiring a magnetic resonance signal generated in the imaging region, and reconstructing a magnetic resonance images of the vessel wall in the imaging region according to the magnetic resonance signal (S120). By adding the flip-down pulse train behind the variable flip angle train of the three-dimensional fast spin echo (SPACE), the cerebrospinal fluid signals of the whole brain can be further suppressed effectively and uniformly, and the DANTE pulse train promotes the vessel wall imaging of the head and neck jointing portion.
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公开(公告)号：US10743789B2
公开(公告)日：2020-08-18
申请号：US15739719
申请日：2017-11-28
Inventor： Ye Li , Xiaomao Fan , Yunpeng Cai , Qihang Yao , Yujie Yang
IPC: A61B5/0452 , A61B5/04 , A61B5/0472 , A61B5/00 , A61B5/0404 , G16H50/20 , A61B5/0432 , A61B5/0245 , A61B5/0456
Abstract: Provided are an electrocardiogram signal parallel analysis apparatus, a mobile terminal incorporating the apparatus, and related methods. The apparatus includes an integrated memory, a central processing unit and a graphic processing unit. The integrated memory includes a first memory and a second memory for being used by the central processing unit and the graphic processing unit respectively, and the central processing unit may access the second memory. The central processing unit performs primary noise reduction on a received electrocardiogram original signal to obtain a primary electrocardiogram signal, and performs abnormal heartbeat classification preliminary screening on characteristic data extracted from the graphic processing unit to obtain suspected abnormal heartbeat data. The graphic processing unit performs characteristic extraction on the primary electrocardiogram signal to obtain characteristic data, performs secondary noise reduction on the primary electrocardiogram signal to obtain a secondary electrocardiogram signal, and processes the suspected abnormal heartbeat data and the secondary electrocardiogram signal by applying a template matching classification mode to obtain final abnormal heartbeat data.
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公开(公告)号：US20200175711A1
公开(公告)日：2020-06-04
申请号：US16077523
申请日：2017-05-24
Inventor： Shoujun Zhou , Baolin Li , Cheng Wang , Pei Lu
Abstract: A method and an apparatus for extracting a centerline of a tubular object are provided. The method includes: preprocessing an image of the tubular object whose centerline is to be extracted to obtain an enhanced image, acquiring a gradient vector flow field of the enhanced image; acquiring a deformation force parameter based on the gradient vector flow field and extracting ridge points of the tubular object from the enhanced image, establishing a regularized open curve deformable model; if a deformation end condition is not met, deforming and processing one ridge line segment in the initial ridge line segment list based on the model to obtain a centerline segment of the tubular object, updating the initial ridge line segment list based on the ridge line segment traversed; if the deformation end condition is met, generating a centerline of the tubular object based on the centerline segments.
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Patent Agency Ranking
公开(公告)号：US20200175264A1
公开(公告)日：2020-06-04
申请号：US16623397
申请日：2017-08-07
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY CHINESE ACADEMY OF SCIENCES , SHENZHEN SIBIKU TECHNOLOGY CO., LTD
Inventor： SHUQIANG WANG , YONGCAN WANG , YUE YANG , YANYAN SHEN , MINGHUI HU
Abstract: A teaching assistance method and a teaching assistance system using said method, the teaching assistance method comprising implementing behaviour detection of students in classroom images by means of using a trained depth tensor column network model, thus providing higher image recognition precision and reducing the hardware requirements for algorithms, and being able to be used on an embedded device, reducing the usage costs of the teaching assistance method; in addition, a teaching assistance system using said teaching assistance method has the same advantages.
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公开(公告)号：US10665221B2
公开(公告)日：2020-05-26
申请号：US15856349
申请日：2017-12-28
Inventor： Rongmao Li , Shanshan Zang , Yanjun Liu , Yili Chen , Yanchun Zhu , Mingmin Chen , Yaoqin Xie
IPC: G10L13/04 , G10L13/047 , G06F17/27 , A61M21/02 , G09B9/00 , G06F40/30 , G06F40/253 , G10L13/10 , A61M21/00
Abstract: A virtual reality guide hypnosis speech processing method and apparatus, wherein the method comprises: performing a text analysis for a hypnosis guide language, so as to obtain text hierarchical information of the hypnosis guide language; performing a speech analysis for the hypnosis guide language, so as to obtain speech rhythm information of the hypnosis guide language; searching a hypnosis speech library for corresponding speech units, according to the text hierarchical information and the speech rhythm information of the hypnosis guide language, the hypnosis speech library storing speech units generated according to corpus data recorded by a user's susceptible person; synthesizing found speech units into hypnosis speech data; and synthesizing the hypnosis speech data with a virtual reality hypnosis scene, and outputting a virtual reality guide hypnosis speech. The present disclosure can improve the user's hypnosis susceptibility and optimize the hypnosis effect.
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108.发明授权公开(公告)号：US10555724B2
公开(公告)日：2020-02-11
申请号：US15519531
申请日：2015-12-31
Inventor： Tiexiang Wen , Jia Gu , Yaoqin Xie , Lei Wang
Abstract: An ultrasound probe calibration system and method. The system comprises an ultrasound probe calibration phantom (100), and the ultrasound probe calibration phantom (100) is provided with a sunken recess (110) at a middle position of an upper surface thereof and with several conical holes on a side surface thereof. The sunken recess (110) is fixedly connected with a two dimensional ultrasound probe (220) therein. The conical hole is inserted with an NDI insertion stylus (230), and a tip of the NDI insertion stylus (230) can be acquired in ultrasound imaging. An ultrasound probe calibration system employing the above structure enables a midplane of an ultrasound plane to pass a midplane of an ultrasound probe calibration phantom (100) along a middle gap, such that a tip of an NDI insertion stylus (230) is used for the midplane of the ultrasound plane, thereby addressing the problem of misalignment of a point-type phantom or a two-dimensional plane-type phantom to the ultrasound plane.
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公开(公告)号：US20200027215A1
公开(公告)日：2020-01-23
申请号：US16490082
申请日：2017-03-21
Inventor： WENCHAO LI , RUIZHEN HU , HUI HUANG
Abstract: The present disclosure provides a three-dimensional shape expression method and device thereof. The method includes following steps: extracting a hybrid type framework of a three-dimensional shape; obtaining a segmentation of the three-dimensional shape by segmenting the hybrid type framework; obtaining a sub-structure of the three-dimensional shape according to the segmentation of the three-dimensional shape; and establishing an expression of the three-dimensional shape by using a bag-of-words model according to the sub-structure of the three-dimensional shape. The embodiments of the present disclosure are capable to express a three-dimensional shape with an easy and high-efficient method.
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公开(公告)号：US10459052B2
公开(公告)日：2019-10-29
申请号：US16067204
申请日：2015-12-30
Inventor： Hairong Zheng , Xin Liu , Chuanli Cheng , Chao Zou
IPC: G01R33/56 , G01R33/48 , A61B5/055 , G01R33/44 , G01R33/46 , G01R33/485 , G01R33/565
Abstract: Provided are a magnetic resonance chemical-shift-encoded imaging method, apparatus, and device, belonging to the technical field of magnetic resonance imaging. The method comprises: in a phasor-error plot established on the basis of a two-point magnetic resonance signal model, determining to be an initial seed point a pixel having a unique phasor and causing said plot to reach a minimal local value; according to the initial seed point, estimating the phasor value of a to-be-estimated pixel to obtain a field map; mapping and merging the field map at the highest resolution to obtain a reconstructed field map; determining a reconstructed seed point from the reconstructed field map, and estimating the reconstructed seed point to obtain the phasor value of the reconstructed to-be-estimated pixel; according to the reconstructed seed point and the phasor value of the reconstructed to-be-estimated pixel, obtaining two separate images having predetermined components. In the method, a region simultaneously containing two components is identified as a seed point, eliminating the deviation caused by phasor-value jump at high resolution and ensuring the correctness of the seed point ultimately selected.
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