Patents by Inventor Qingping Huang
Qingping Huang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170176353Abstract: The present disclosure relates to multi-modality detection systems and methods. One illustrative multi-modality detection system may include a distributed radiation source configured to irradiate an object under detection, a primary collimator configured to separate rays of the distributed radiation source into two parts, wherein one part is for CT detection and the other part is for XRD detection, a CT detection device configured to perform a CT detection to acquire a CT image of the object under detection, and an XRD detection device configured to perform an XRD detection to acquire an XRD image of the object under detection, wherein the CT detection and the XRD detection are performed simultaneously.Type: ApplicationFiled: September 12, 2016Publication date: June 22, 2017Inventors: Zhiqiang CHEN, Li ZHANG, Tianyi YANG DAI, Qingping HUANG, Yunda SUN, Xin JIN
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Publication number: 20170122884Abstract: The present disclosure discloses a radiography system including: a ray source, comprising a plurality of X-ray generators which are distributed on one or more planes intersected with a moving direction of an object being inspected; a detector module comprising a plurality of detection units; a data collection circuit; a controller, configured to control at least two X-ray generators of the plurality of X-ray generators in the ray source to generate X-rays alternately such that the object is scanned by the generated X-rays; and control the detector module and the data collection circuit to respectively obtain detection data corresponding to the at least two X-ray generators; and a data processing computer, configured to create images of the object being inspected in view angles of the at least two X-ray generators based on the detection data.Type: ApplicationFiled: December 14, 2015Publication date: May 4, 2017Inventors: Li ZHANG, Xin JIN, Huaping TANG, Qingping HUANG, Yunda SUN, Zhiqiang CHEN
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Publication number: 20170082777Abstract: A security inspection passage and a security inspection apparatus. The security inspection passage includes: an inspection passage main portion that extends along a first direction and through which an item to be inspected passes so as to receive an inspection; an inspection passage entrance end portion configured to be oriented in a direction that is angled at a first angle relative to the first direction; and an inspection passage exit end portion configured to be oriented in a direction that is angled at a second angle relative to the first direction, wherein the first angle and/or the second angle are/is not zero.Type: ApplicationFiled: September 21, 2016Publication date: March 23, 2017Applicant: NUCTECH COMPANY LIMITEDInventors: Qingping HUANG, Jia XU, Mingzhi HONG, Yanxia ZHENG
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Publication number: 20170083768Abstract: The disclosure relates to smart security inspection systems and methods. One illustrative method may comprise distributing, by the system, a security inspection tray to a person to be inspected through an unpacking station and associating/binding information regarding the person to be inspected to a baggage identifier, and identifying the baggage identifier, obtaining the information of the person to be inspected according to the baggage identifier, obtaining pre-stored risk information according to the information of the person to be inspected, performing differentiated security inspections on the person to be inspected and/or baggage according to the risk information, and associating/binding the obtained data to the information of the person to be inspected. Further implementations relate to features such as processing identity information, controlling flow in the baggage handling area(s), imaging baggage, packing the baggage, and finishing the security inspection.Type: ApplicationFiled: September 20, 2016Publication date: March 23, 2017Inventors: JIA XU, HU TANG, QINGPING HUANG, YING FAN
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Publication number: 20170075026Abstract: The present disclosure discloses an inspection device, an inspection method and an inspection system. The device comprises a distributed ray source comprising multiple source points; a light source collimator configured to converge the rays generated by the distributed ray source to form an inverted fan-shaped ray beam; a scatter collimator configured to only allow rays scattered at one or more particular scattering angles which are generated by the rays from the light source collimator interacting with inspected objects to pass; at least one detector each comprising multiple detection units which have an energy resolution capability and are substantially arranged in a cylindrical surface to receive the scattered rays passing through the scatter collimator; and a processing apparatus configured to calculate energy spectrum information of the scattered rays from the inspected objects based on a signal output by the detectors.Type: ApplicationFiled: March 3, 2015Publication date: March 16, 2017Inventors: Zhiqiang Chen, Li Zhang, Tianyi Yangdai, Qingping Huang
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Patent number: 9557436Abstract: Disclosed are methods and apparatuses for creating a 3-Dimensional model for objects in an inspected luggage in a CT system. The method includes acquiring slice data of the luggage with the CT system; interpolating the slice data to generate 3D volume data of the luggage; performing unsupervised segmentation on the 3D volume data of the luggage to obtain a plurality of segmental regions; performing isosurface extraction on the plurality of segmental regions to obtain corresponding isosurfaces; and performing 3D surface segmentation on the isosurfaces to form a 3D model for the objects in the luggage. The above solutions can create a 3D model for objects in the inspected luggage in a relatively accurate manner, and thus provide better basis for subsequent shape feature extraction and security inspection, and reduce omission factor.Type: GrantFiled: December 23, 2013Date of Patent: January 31, 2017Assignees: Tsinghua University, Nuctech Company LimitedInventors: Zhiqiang Chen, Li Zhang, Ziran Zhao, Qiang Li, Jianping Gu, Qingping Huang
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Patent number: 9542624Abstract: The present invention discloses recognizing methods of flaky or blocky prohibited articles, explosives or drugs. Specifically, the method for recognizing flaky prohibited articles, explosives or drugs comprises steps of: (1) reading in tomogram data of an object to be inspected for one tomogram; (2) pre-processing the tomogram data; (3) splitting the pre-processed tomogram data into a plurality of regions that have similar physical properties; (4) analyzing whether each of the split regions is a flaky region; (5) determining whether the flaky region recognized in the current tomogram can be merged with the flaky region detected from the previous tomogram, so as to form a flaky target; (6) determining whether each detected flaky target is complete or finished; (7) repeating steps (1)-(6) and processing each tomogram data layer by layer, until all of the tomogram data have been processed.Type: GrantFiled: March 18, 2016Date of Patent: January 10, 2017Assignees: Tsinghua University, Nuctech Company LimitedInventors: Li Zhang, Qingping Huang, Yunda Sun, Lei Lei, Zhi Tang
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Patent number: 9500764Abstract: The present disclosure discloses a scanning imaging system, comprising a transportation apparatus, a first imaging system, and a second imaging system. A distance between a ray beam from a first ray generator of the first imaging system and a ray beam from a second ray generator of the second imaging system in the transportation direction is roughly L. A controller is configured to acquire, based on a count value of the encoding counter module, a correspondence relationship between data in a position of the inspected object in the transportation direction which is collected by the first imaging system and data in the position of the inspected object in the transportation direction which is collected by the second imaging system, wherein a difference between a count value of the encoder corresponding to the data in the position which is collected by the first imaging system and a count value of the encoder corresponding to the data in the position which is collected by the second imaging system is roughly L/D.Type: GrantFiled: May 14, 2015Date of Patent: November 22, 2016Assignee: Nuctech Company LimitedInventors: Li Zhang, Jinyu Zhang, Qingping Huang, Hu Tang, Hui Ding, Qianlu Ren
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Publication number: 20160321816Abstract: Methods for extracting a shape feature of an object and security inspection methods and apparatuses. Use is made of CT's capability of obtaining a 3D structure. The shape of an object in an inspected luggage is used as a feature of a suspicious object in combination with a material property of the object. For example, a false alarm rate in detection of suspicious explosives may be reduced.Type: ApplicationFiled: July 7, 2016Publication date: November 3, 2016Applicants: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITEDInventors: Zhiqiang CHEN, Li ZHANG, Ziran ZHAO, Qingping HUANG, Qiang LI, Jianping GU, Yunda SUN
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Publication number: 20160314378Abstract: The present invention discloses recognizing methods of flaky or blocky prohibited articles, explosives or drugs. Specifically, the method for recognizing flaky prohibited articles, explosives or drugs comprises steps of: (1) reading in tomogram data of an object to be inspected for one tomogram; (2) pre-processing the tomogram data; (3) splitting the pre-processed tomogram data into a plurality of regions that have similar physical properties; (4) analyzing whether each of the split regions is a flaky region; (5) determining whether the flaky region recognized in the current tomogram can be merged with the flaky region detected from the previous tomogram, so as to form a flaky target; (6) determining whether each detected flaky target is complete or finished; (7) repeating steps (1)-(6) and processing each tomogram data layer by layer, until all of the tomogram data have been processed.Type: ApplicationFiled: March 18, 2016Publication date: October 27, 2016Inventors: Li Zhang, Qingping Huang, Yunda Sun, Lei Lei, Zhi Tang
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Patent number: 9466137Abstract: The present disclosure discloses a spiral CT system and a reconstruction method thereof. In some embodiments, it is proposed that data missing due to a large pitch is compensated by weighting the complementary projection data of the projection data obtained using the spiral CT system. After the data is complemented, the projection data is rebinned as cone parallel beam data, cone-angle cosine weighting and one-dimensional filtering are implemented on the rebinned data, and parallel beam back projection is finally implemented on the filtered data, to obtain the reconstructed images. In some embodiments, with the above method, the speed of the belt can be increased by more than one time in a case that the existing area of the detectors and the existing speed of the slip ring are unchanged, thereby improving the pass rate of the luggage and maintaining the quality of the reconstructed images unchanged.Type: GrantFiled: May 11, 2015Date of Patent: October 11, 2016Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Li Zhang, Zhiqiang Chen, Le Shen, Yuxiang Xing, Xin Jin, Qingping Huang
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Patent number: 9448188Abstract: The present invention discloses a vehicular radiation inspection system comprising a mobile vehicle body, a detection arm, a radiation source and a detector. The vehicular radiation inspection system further comprises a following mechanism separated from the detection arm. The following mechanism contains radiation protection material, and the following mechanism follows the detection arm to move in a non-contact manner during inspection of the inspected object, so as to prevent radiation leakage. In the present invention, it does not need to infuse radiation protection material having a high density, such as lead, into the detection arm. Therefore, it can effectively decrease the weight of the detection arm, and it does not need to provide a balance counterweight on the mobile vehicle body on which the detection arm is carried, thereby effectively solving the problem that the vehicular radiation inspection system has an excessively large mass.Type: GrantFiled: July 2, 2013Date of Patent: September 20, 2016Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Jianmin Li, Yinong Liu, Yulan Li, Chunguang Zong, Hui Gong, Qingping Huang, Weifeng Yu
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Patent number: 9449399Abstract: The present invention discloses recognizing methods of flaky or blocky prohibited articles, explosives or drugs. Specifically, the method for recognizing flaky prohibited articles, explosives or drugs comprises steps of: (1) reading in tomogram data of an object to be inspected for one tomogram; (2) pre-processing the tomogram data; (3) splitting the pre-processed tomogram data into a plurality of regions that have similar physical properties; (4) analyzing whether each of the split regions is a flaky region; (5) determining whether the flaky region recognized in the current tomogram can be merged with the flaky region detected from the previous tomogram, so as to form a flaky target; (6) determining whether each detected flaky target is complete or finished; (7) repeating steps (1)-(6) and processing each tomogram data layer by layer, until all of the tomogram data have been processed.Type: GrantFiled: January 23, 2014Date of Patent: September 20, 2016Assignees: Tsinghua University, Nuctech Company LimitedInventors: Li Zhang, Qingping Huang, Yunda Sun, Lei Lei, Zhi Tang
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Patent number: 9412019Abstract: Methods for extracting a shape feature of an object and security inspection methods and apparatuses. Use is made of CT's capability of obtaining a 3D structure. The shape of an object in an inspected luggage is used as a feature of a suspicious object in combination with a material property of the object. For example, a false alarm rate in detection of suspicious explosives may be reduced.Type: GrantFiled: December 20, 2013Date of Patent: August 9, 2016Assignees: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITEDInventors: Zhiqiang Chen, Li Zhang, Ziran Zhao, Qingping Huang, Qiang Li, Jianping Gu, Yunda Sun
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Publication number: 20160178789Abstract: The present disclosure provides a dual-source security inspection CT scanning system and scanning method. The system includes two sets of scan imaging systems, wherein each set of the scan imaging systems has its own separate ray source and detector, the two sets of scan imaging systems are juxtaposed on a same rotary mechanism, and a predetermined interval is provided between imaging planes of the two sets of scan imaging systems. The present disclosure ensures the two sets of imaging optical paths do not interfere with each other, therefore effectively avoiding the problem of scattering mutual interference between the dual sources of the dual-source CT scanning system in the prior art.Type: ApplicationFiled: December 23, 2015Publication date: June 23, 2016Inventors: Li Zhang, Mingzhi Hong, Qingping Huang, Xin Jin
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Patent number: 9250180Abstract: A raman spectrum measuring method for drug inspection is provided, comprising: measuring raman spectrum of a sample to be inspected to acquire an original raman spectrum curve of the sample; determining whether the original raman spectrum curve has a characterizing portion, and if not, measuring a mixture of the sample and an enhancing agent to acquire an enhanced raman spectrum curve of the sample; and if the original raman spectrum curve of the sample to be inspected has a characterizing portion, comparing the original raman spectrum curve of the sample with data in an original raman spectrum database of a drug to determine whether the sample contains the drug, otherwise, comparing the enhanced raman spectrum curve of the sample with data in an enhanced raman spectrum database of the drug to determine whether the sample to be inspected contains the drug.Type: GrantFiled: September 24, 2014Date of Patent: February 2, 2016Assignee: Nuctech Company LimitedInventors: Zhiqiang Chen, Li Zhang, Jianhong Zhang, Hongqiu Wang, Ziran Zhao, Yumin Yi, Jianping Gu, Qingping Huang
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Patent number: 9239895Abstract: A computer-implemented method for use in analyzing a model of a repetitive structure includes generating a plurality of blocks based on the model such that the blocks are arranged end to end. The method also includes defining at least one boundary condition on an inlet of the model and on an outlet of the model, generating a plurality of constraints to be applied to the blocks to define connectivity between adjacent blocks, defining an inlet state based on the boundary condition and at least a portion of the constraints. The method further includes detecting when a first block passes a trigger plane at the inlet of the model, erasing a state of a second block at the outlet of the model, shuffling the second block to an inlet zone, and resetting the state of the second block to the inlet state.Type: GrantFiled: December 2, 2011Date of Patent: January 19, 2016Assignee: Dassault Systèmes Simulia Corp.Inventors: Qingping Huang, Victor George Oancea, William John Grimes
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Publication number: 20160012647Abstract: A CT system for security check and a method thereof are provided. The method includes: reading inspection data of an inspected object; inserting at least one three-dimensional (3D) Fictional Threat Image (FTI) into a 3D inspection image of the inspected object, which is obtained from the inspection data; receiving a selection of at least one region in the 3D inspection image including the 3D FTI or at least one region in a two-dimensional (2D) inspection image including a 2D FTI corresponding to the 3D FTI, wherein the 2D inspection image is obtained from the 3D inspection image or is obtained from the inspection data; and providing a feedback of the 3D inspection image including at least one 3D FTI in response to the selection. With the above solution, it is convenient for a user to rapidly mark a suspected object in the CT image, and provides a feedback of whether a FTI is included.Type: ApplicationFiled: June 24, 2015Publication date: January 14, 2016Inventors: Zhiqiang CHEN, Li ZHANG, Shuo WANG, Yunda SUN, Qingping HUANG, Zhi TANG
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Publication number: 20150378047Abstract: The present disclosure discloses a detector device comprising a plurality of detector assemblies. Each detector assembly comprises at least one detection crystal units having a first energy response and those having a second energy response, which are both arranged along a first direction at intervals, each detection crystal unit having a first/second energy response including at least one detection crystals having a first/second energy response arranged along a second direction. The at least one detection crystal units having a first energy response and the at least one detection crystal units having a second energy response are, at least partially, alternatively arranged along the first direction when viewed from an incidence direction of the X-ray. The present disclosure also discloses a dual energy CT system having the detector device and a CT detection method using this system.Type: ApplicationFiled: June 24, 2015Publication date: December 31, 2015Inventors: Zhiqiang CHEN, Li ZHANG, Xin JIN, Qingping HUANG, Le SHEN, Yunda SUN
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Publication number: 20150379745Abstract: The present invention provides a CT image calibration method and device and a CT system. The method includes: arranging a fixed calibration element at the outside of a channel area and within the maximal reconstruction area of a CT scanning device, and storing the theoretical value of the fixed calibration element; collecting the projection data of the fixed calibration element to obtain the actual reconstructed image of the fixed calibration element; and comparing the actual reconstructed image with the stored corresponding theoretical value, to establish a mapping function for correcting the actual reconstructed image into the theoretical value. By adopting the present invention, the calibration quality can be effectively improved, the image calibration effect is enhanced, the reliability of the CT scanning device is improved and the maintenance cost is saved, thus the practical application value is very high.Type: ApplicationFiled: June 25, 2015Publication date: December 31, 2015Inventors: Li ZHANG, Xin JIN, Qingping HUANG, Yunda SUN