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151.发明授权公开(公告)号：US11452502B2
公开(公告)日：2022-09-27
申请号：US16482802
申请日：2017-12-26
Applicant: Shenzhen Institutes of Advanced Technology
Inventor： Yang Xiao , Hairong Zheng , Congzhi Wang , Lili Niu , Zhiting Deng
IPC: A61B8/08
Abstract: A method and a device for acquiring biomechanical parameters based on an ultrasonic elastomyogram are provided, wherein the method includes: synchronously collecting a dynamic myodynamics image sequence and a dynamic elasticity image sequence of a single skeletal muscle under continuous stretching; acquiring a myodynamics parameter corresponding to each myodynamics image in the dynamic myodynamics image sequence and an elasticity modulus value corresponding to each elasticity image in the dynamic elasticity image sequence respectively; and generating an ultrasonic elastomyogram curve with the myodynamics parameter as the abscissa and the synchronized elasticity modulus value as the ordinate, and estimating a muscle biomechanical parameter based on the ultrasonic elastomyogram curve. Dynamically changing biomechanical parameters can be obtained, and the obtained muscle biomechanical parameters have relatively high accuracy.
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公开(公告)号：US20220283325A1
公开(公告)日：2022-09-08
申请号：US17824453
申请日：2022-05-25
Inventor： Zhanli HU , Yongfeng YANG , Chunhui ZHANG , Zhonghua KUANG , Xiaohui WANG , San WU , Dong LIANG , Xin LIU , Hairong ZHENG
Abstract: A method for processing positron emission tomography data is provided, this method includes: obtaining a first coordinate and a second coordinate respectively corresponding to two ends of a response line to be processed; determining corresponding dimensional coordinates of the response line to be processed in a sinogram based on the first coordinate and the second coordinate; and generating the sinogram corresponding to the response line to be processed based on the dimensional coordinates. According to this method, the amount of calculation of system matrix is reduced, the accuracy of position information of the generated response line is improved, and the accuracy of generated sinogram is improved accordingly.
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公开(公告)号：US20220253985A1
公开(公告)日：2022-08-11
申请号：US17732577
申请日：2022-04-29
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Rongliang CHEN , Xiaochuan CAI
Abstract: A method for denoising an image, an apparatus, and a computer-readable storage medium. The method includes: dividing a to-be-processed image into a plurality of image areas; for each image area, expanding an edge of the image area to obtain an expanded area; wherein the expanded area comprises the image area and an edge area, and the edge area comprises pixels in another image area adjacent to the image area; for each expanded area, performing denoising processing on the expanded area through a preset algorithm to obtain a denoised expanded area; wherein the denoised expanded area comprises a denoised image area and a denoised edge area; and abandoning the denoised edge area in each denoised expanded area, and retaining and combining all the denoised image areas to form a denoised image.
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公开(公告)号：US11378636B2
公开(公告)日：2022-07-05
申请号：US17032588
申请日：2020-09-25
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Ye Li , Qiaoyan Chen , Jo Lee , Chao Luo , Jianhong Wen , Chao Zou , Xin Liu
Abstract: A shimming system for magnetic resonance imaging is provided, which includes: a multi-channel local shim coil unit configured to be installed on an inspection table of a magnetic resonance imaging system, where the multi-channel local shim coil unit includes a local multi-channel shim coil and a radio frequency receiving coil for receiving magnetic resonance signals, and the radio frequency receiving coil is placed inside the local multi-channel shim coil and separated by a distance from the local multi-channel shim coil; a computer control system configured to install and set software controlled by a DC power and calculate field maps and calculate optimization processes; a DC power system communicatively connected to the computer control system to control a value of current of each channel; and a housing having a semi-cylindrical configuration, where the local multi-channel shim coil is only distributed on a semi-cylindrical surface of the semi-cylindrical configuration of the housing.
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155.发明授权公开(公告)号：US11210783B2
公开(公告)日：2021-12-28
申请号：US16910074
申请日：2020-06-24
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Hairong Zheng , Xin Liu , Na Zhang , Zhanli Hu , Dong Liang , Yongfeng Yang
Abstract: A method of processing plaques in magnetic resonance imaging of vessel wall include: step S101, training a generative adversarial network and a capsule neural network to obtain a trained generator network and a trained capsule neural network; and step S102, cascade-connecting the trained generator network with the capsule neural network into a system to recognize and classify plaques in magnetic resonance imaging of vessel wall. In one aspect, the capsule neural network has more abundant vascular plaques characteristic information represented by vector; in another aspect, when the trained generator network and the capsule neural network are cascaded into the system to recognize and classify the plaques in magnetic resonance imaging of vessel wall, an accuracy of recognition and classification may be greatly improved. A device for processing the method as well as a computer for implementing are also disclosed.
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Patent Agency Ranking
公开(公告)号：US20210342551A1
公开(公告)日：2021-11-04
申请号：US17367883
申请日：2021-07-06
Applicant: Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences , Tencent Technology (Shenzhen) Company Limited
Inventor： Min Yang , Wei Bi , Xiao Jiang Liu , Lei Chen , Ting Ting Huang
Abstract: A method for training a dialog generation model includes: acquiring a dialog data set, and encoding a post in the dialog data set by using an encoder in the dialog generation model to obtain an encoded representation of the post; fusing, by using a decoder in the dialog generation model, the encoded representation of the post and knowledge information corresponding to the post that is obtained from a knowledge base question answering model through transfer learning to obtain a predicted response corresponding to the post; determining a value of a loss function of the dialog generation model based on the predicted response and the annotated response that correspond to the post; and updating a model parameter of the dialog generation model based on the value of the loss function. A method, an apparatus, a device, and a computer storage medium for generating a dialog are also provided.
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公开(公告)号：US20210333344A1
公开(公告)日：2021-10-28
申请号：US16624478
申请日：2019-09-17
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Dong LIANG , Jing CHENG , Haifeng WANG , Hairong ZHENG , Xin LIU
Abstract: Disclosed are a magnetic-resonance imaging method, apparatus and system, and a storage medium. The method includes acquiring an initial model of magnetic-resonance imaging and establishing an initial imaging model according to an iterative algorithm used for solving the initial model, where the iterative algorithm includes at least one of an undetermined parameter, an undetermined solving operator or an undetermined structural relationship; training the initial imaging model on the basis of sample data to generate a magnetic-resonance imaging model, where training of the initial imaging model is used for learning the at least one of the undetermined parameter, the undetermined solving operator or the undetermined structural relationship in the iterative algorithm; and acquiring under-sampled K-space data to be processed, inputting the under-sampled K-space data into the magnetic-resonance imaging model, and generating a magnetic-resonance image.
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158.发明申请公开(公告)号：US20210192806A1
公开(公告)日：2021-06-24
申请号：US16878633
申请日：2020-05-20
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Zhan Li HU , Dong LIANG , Hai Rong ZHENG , Xin LIU , Yong Feng YANG , Zhen Xing HUANG
IPC: G06T11/00
Abstract: The disclosure provides a low-dose image reconstruction method and system based on prior anatomical structure difference. The method includes: determining the weights of different parts in the low-dose image based on prior information of anatomical structure differences; constructing a generative network being taking the low-dose image as input extract features, and integrating the weights of the different parts in the feature extraction process, outputting a predicted image; constructing a determining network being taking the predicted image and standard-dose image as input, to distinguish the authenticity of the predicted image and standard-dose image as the first optimization goal, and identifying different parts of the predicted image as the second optimization goal, collaboratively training the generative network and the determining network to obtain the mapping relationship between the low-dose image and the standard-dose image; and reconstructing the low-dose image by using the obtained mapping relationship. The disclosure can obtain more accurate high-definition images.
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公开(公告)号：US20210146350A1
公开(公告)日：2021-05-20
申请号：US16973702
申请日：2018-12-17
Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY
Inventor： Zhiting PENG , Tianzhun WU
Abstract: A device for generating a droplet array, which comprises a substrate, a roller on the substrate, and a microgrooved chip on the outer surface of the roller, wherein a sealant is on a surface of the substrate close to the roller and the microgrooved chip comprises a chip body fitted to the roller and an array of microgrooves arranged on the chip body, the array of microgrooves consisting of a plurality of microgrooves arranged at intervals on the chip body. When the roller rolls, liquid between the substrate and the roller enters the microgrooves and forms droplets while the microgrooved chip detaches from the roller and combines with the sealant which seals the microgrooves, generating a droplet array. The device generates a droplet array having uniform droplet size, good repeatability. Further, the method is simple and highly efficient, and has broad application prospects in the fields of medicine and biology.
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公开(公告)号：US11004206B2
公开(公告)日：2021-05-11
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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