Patents by Inventor Yu-Ching Ni
Yu-Ching Ni 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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Patent number: 11693146Abstract: A calculation method for a dual-energy X-ray imaging system is provided. The calculation method for the dual-energy X-ray imaging system includes the following steps. A plurality of material attenuation coefficient ratio of the dual-energy projection image are established according to the reference materials with known material characteristics. The effective atomic number of each reference material and the material attenuation coefficient ratio are used to establish a calibration data set. A rational polynomial approximation method is adopted to obtain the characteristic model related to the material attenuation coefficient ratio of the reference material and the effective atomic number of the reference material. The material attenuation coefficient ratio of the dual-energy projection image of unknown material is established.Type: GrantFiled: January 12, 2022Date of Patent: July 4, 2023Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN, R.O.CInventors: Chia-Hao Chang, Yu-Ching Ni, Sheng-Pin Tseng
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Publication number: 20220308252Abstract: A calculation method for a dual-energy X-ray imaging system is provided. The calculation method for the dual-energy X-ray imaging system includes the following steps. A plurality of material attenuation coefficient ratio of the dual-energy projection image are established according to the reference materials with known material characteristics. The effective atomic number of each reference material and the material attenuation coefficient ratio are used to establish a calibration data set. A rational polynomial approximation method is adopted to obtain the characteristic model related to the material attenuation coefficient ratio of the reference material and the effective atomic number of the reference material. The material attenuation coefficient ratio of the dual-energy projection image of unknown material is established.Type: ApplicationFiled: January 12, 2022Publication date: September 29, 2022Inventors: CHIA-HAO CHANG, YU-CHING NI, SHENG-PIN TSENG
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Patent number: 11369268Abstract: A brain-function image data augmentation method includes: a step of providing a target database including a plurality of image-data information; a step of, based on a plurality of image-data expected information in an expectation-value database, calculating a ratio of the plurality of image-data expected information with respect to different ages; a step of, based on the plurality of image-data information and the ratio, obtaining image-data ratio information with respect to an estimated age; a step of establishing a relationship for each pair of the image-data information and the image-data expected information; a step of, based on the relationship, the ratio and the image-data information, calculating an estimated image-data information with respect to the estimated age; and, a step of combining linearly the estimated image-data information and the image-data ratio information so as to generate an augmented image-data information with respect to the estimated age.Type: GrantFiled: May 28, 2020Date of Patent: June 28, 2022Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN, R.O.CInventors: Fan-Pin Tseng, Yu-Ching Ni, Wen-Bin Lin
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Patent number: 11311261Abstract: A nuclear image processing method is provided. The method includes the following steps: inputting a normalized standard space nuclear image; selecting a voxel of the normalized standard space nuclear image and collecting the values of the neighbor voxels to form a voxel value set; conducting a data augmentation algorithm to generate a voxel distribution function; calculating an expected value of the distribution and calculating a first standard deviation of the portion over the expected value and a second standard deviation of the portion lower than the expected value; repeating the above steps to calculate the expected value, the first standard deviation and the second standard deviation of the necessary voxels, so as to form an image standardization template set including expected value template, first standard deviation template and the second standard deviation template.Type: GrantFiled: May 31, 2019Date of Patent: April 26, 2022Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUANInventors: Ho-Hui Hsieh, Yu-Ching Ni
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Patent number: 10925572Abstract: A geometric calibration method for dual-axis digital tomosynthesis includes the steps of: providing a calibration phantom having a first plate, a second plate parallel to the first plate, and mark points distributed to the first and second plates; arranging any mark point at the first plate not to be vertically collinear with a mark point at the second plate; projecting the calibration phantom onto a planar detector to obtain a projected calibration-phantom image; deriving a conversion relationship between the mark point and the corresponding projected position at the planar detector to further establish a projection matrix related to an imaging system; and, applying the projection matrix to calculate a plurality of geometric parameters. In addition, a geometric calibration system for dual-axis digital tomosynthesis is also provided.Type: GrantFiled: February 20, 2020Date of Patent: February 23, 2021Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN, R.O.CInventors: Chia-Hao Chang, Sheng-Pin Tseng, Yu-Ching Ni, Fan-Pin Tseng
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Publication number: 20200375462Abstract: A brain-function image data augmentation method includes: a step of providing a target database including a plurality of image-data information; a step of, based on a plurality of image-data expected information in an expectation-value database, calculating a ratio of the plurality of image-data expected information with respect to different ages; a step of, based on the plurality of image-data information and the ratio, obtaining image-data ratio information with respect to an estimated age; a step of establishing a relationship for each pair of the image-data information and the image-data expected information; a step of, based on the relationship, the ratio and the image-data information, calculating an estimated image-data information with respect to the estimated age; and, a step of combining linearly the estimated image-data information and the image-data ratio information so as to generate an augmented image-data information with respect to the estimated age.Type: ApplicationFiled: May 28, 2020Publication date: December 3, 2020Inventors: FAN-PIN TSENG, Yu-Ching Ni, Wen-Bin Lin
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Publication number: 20200315563Abstract: A nuclear image processing method is provided. The method includes the following steps: inputting a normalized standard space nuclear image; selecting a voxel of the normalized standard space nuclear image and collecting the values of the neighbor voxels to form a voxel value set; conducting a data augmentation algorithm to generate a voxel distribution function; calculating an expected value of the distribution and calculating a first standard deviation of the portion over the expected value and a second standard deviation of the portion lower than the expected value; repeating the above steps to calculate the expected value, the first standard deviation and the second standard deviation of the necessary voxels, so as to form an image standardization template set including expected value template, first standard deviation template and the second standard deviation template.Type: ApplicationFiled: May 31, 2019Publication date: October 8, 2020Inventors: HO-HUI HSIEH, YU-CHING NI
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Patent number: 10582898Abstract: A tomography method includes: a step of having a photon counting detector to undergo a relative motion with respect to an X-Ray source, and capturing 2×N projected energy spectral data at 2×N individual discrete projection angles that divide the relative motion, the N being a positive integer; a step of reforming the 2×N projected energy spectral data at the 2×N individual discrete projection angles and establishing corresponding projection intensity data; and, a step of basing on the projection intensity data and the 2×N projected energy spectral data at the 2×N individual discrete projection angles to calculate the material decomposition images. In addition, a tomography system is also provided.Type: GrantFiled: March 19, 2018Date of Patent: March 10, 2020Assignee: INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN, R.O.C.Inventors: Chia-Hao Chang, Shu-Chun Chang, Fan-Pin Tseng, Yu-Ching Ni
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Publication number: 20190117172Abstract: A tomography method includes: a step of having a photon counting detector to undergo a relative motion with respect to an X-Ray source, and capturing 2×N projected energy spectral data at 2×N individual discrete projection angles that divide the relative motion, the N being a positive integer; a step of reforming the 2×N projected energy spectral data at the 2×N individual discrete projection angles and establishing corresponding projection intensity data; and, a step of basing on the projection intensity data and the 2×N projected energy spectral data at the 2×N individual discrete projection angles to calculate the material decomposition images. In addition, a tomography system is also provided.Type: ApplicationFiled: March 19, 2018Publication date: April 25, 2019Inventors: Chia-Hao Chang, Shu-Chun Chang, Fan-Pin Tseng, Yu-Ching Ni
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Patent number: 8966954Abstract: An anthropomorphic phantom for medical imaging systems is disclosed, which is configured with organ models designed to mimic the three-dimensional shape of human organs, and also by the arrangement of plate-like first connecting elements inside their corresponding organ models, lesion phantoms for simulating tumors can be fixedly secured inside the corresponding organ model using a plurality of first connection holes formed on the first connecting element. Therefore, by the distribution of those first connection holes, not only the lesion phantoms can be arranged at any position inside the corresponding organ model at will as required, but also by modularized design of the anthropomorphic phantom, organ models can first be assembled to form a module structure while the whole module structure with the organ model can be moved into and assembled easily with a torso-like humanoid housing of the anthropomorphic phantom by the use of a handle element.Type: GrantFiled: March 6, 2012Date of Patent: March 3, 2015Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Yu-Ching Ni, Shiang-Lin Hsu, Meei-Ling Jan
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Patent number: 8971657Abstract: The invention provides a method for improving image quality. Through applying variation value during operation of iterated algorithm, this invention can reduce blur phenomenon caused by partial volume effects and improve image accuracy. In an embodiment, by applying the algorithm utilized in the method for improving image quality, this invention further provides an imaging system to detect the distribution of the object, thereby obtaining a clear restored image corresponding to the radiation source.Type: GrantFiled: August 8, 2013Date of Patent: March 3, 2015Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Fan-Pin Tseng, Meei-Ling Jan, Yu-Ching Ni
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Patent number: 8958865Abstract: A lesion phantom is disclosed, which is a spherical ball having a cavity formed therein for housing contrast agents or medicines, and is enabled for the quantitative evaluation of a medical image in drug development and evaluation. In an embodiment, the cavity of the lesion phantom is coupled to a tapering ring and is configured to be sealed by a silicon plug, in order to ensure that contrast agents or medicines can be fed into the cavity easily and conveniently without causing any problem, such as overflowing, a bubble residue problem, radioactive contamination, etc. Moreover, by the arrangement of a retractable fixing bar, the positioning of the lesion phantom can be adjusted flexibly at will, and additionally by the tapering of the tapering ring, the lesion phantom can be prevented from being damaged by any extreme, sudden, unjust, or improper force exerted, and thus the lifespan of the lesion phantom can be prolonged.Type: GrantFiled: March 16, 2012Date of Patent: February 17, 2015Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Shiang-Lin Hsu, Yu-Ching Ni, Meei-Ling Jan
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Publication number: 20140133723Abstract: The invention provides a method for improving image quality. Through applying variation value during operation of iterated algorithm, this invention can reduce blur phenomenon caused by partial volume effects and improve image accuracy. In an embodiment, by applying the algorithm utilized in the method for improving image quality, this invention further provides an imaging system to detect the distribution of the object, thereby obtaining a clear restored image corresponding to the radiation source.Type: ApplicationFiled: August 8, 2013Publication date: May 15, 2014Applicant: INSTITUTE OF NUCLEAR ENERGY RESEARCH ATOMIC ENERGY COUNCIL, EXECUTIVE YUANInventors: FAN-PIN TSENG, MEEI-LING JAN, YU-CHING NI
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Patent number: 8666710Abstract: The present invention provides a method for calibrating the crystal-level detection efficiency, which is capable of evaluating the influences caused by the penetration effect of the crystals of a scintillation detector so as to calculate the difference of detection efficiency between crystals correctly and thereby calibrate the difference between crystals appropriately such that the quality of the imaging result is improved accordingly. The method of present invention is simple without modifying the hardware design and consequently the design cost, manpower cost and time cost can be reduced.Type: GrantFiled: July 21, 2010Date of Patent: March 4, 2014Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Tien-Hsiu Tsai, Meei-Ling Jan, Yu-Ching Ni
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Patent number: 8464378Abstract: A medical inspection apparatus includes a main body and an inspection module. The main body has at least two guide rails and at least two sliding blocks which are slidably coupled to the guide rails respectively, and the inspection module further includes at least one pivot, and each of the sliding blocks is pivotally connected to the inspection module with a pivot, so that the inspection module is capable of sliding on the sliding rail to regulate the height and rotating with respect to the pivot to regulate the inclination. Moreover, the main body has a first supporting component and a second supporting component, so that the combination of the first supporting component and the second supporting component can provide three-ended support for an inspected person.Type: GrantFiled: July 8, 2011Date of Patent: June 18, 2013Assignee: Institute of Nuclear Energy Research Atomic Energy CouncilInventors: Po-Hsiu Kuo, Yu-Ching Ni, Meei-Ling Jan
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Publication number: 20130104678Abstract: An anthropomorphic phantom for medical imaging systems is disclosed, which is configured with organ models designed to mimic the three-dimensional shape of human organs, and also by the arrangement of plate-like first connecting elements inside their corresponding organ models, lesion phantoms for simulating tumors can be fixedly secured inside the corresponding organ model using a plurality of first connection holes formed on the first connecting element. Therefore, by the distribution of those first connection holes, not only the lesion phantoms can be arranged at any position inside the corresponding organ model at will as required, but also by modularized design of the anthropomorphic phantom, organ models can first be assembled to form a module structure while the whole module structure with the organ model can be moved into and assembled easily with a torso-like humanoid housing of the anthropomorphic phantom by the use of a handle element.Type: ApplicationFiled: March 6, 2012Publication date: May 2, 2013Applicant: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: YU-CHING NI, Shiang-Lin Hsu, Meei-Ling Jan
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Publication number: 20130091966Abstract: A lesion phantom is disclosed, which is a spherical ball having a cavity formed therein for housing contrast agents or medicines, and is adapted for the quantitative evaluation of a medical image in drug development and evaluation. In an embodiment, the cavity of the lesion phantom is coupled to a tapering ring and is adapted to be sealed by a silicon plug, by that contrast agents or medicines can be fed into the cavity easily and conveniently without causing any problem, such as overflowing, bubble residue problem, radioactive contamination, etc. Moreover, by the arrangement of a retractable fixing bar, the positioning of the lesion phantom can be adjusted flexibly at will, and also by the tapering of the tapering ring, the lesion phantom can be prevented from being damaged by any extreme, sudden, unjust, or improper force exerted, and thus the lifespan of the lesion phantom can be prolonged.Type: ApplicationFiled: March 16, 2012Publication date: April 18, 2013Applicant: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: SHIANG-LIN HSU, Yu-Ching Ni, Meei-Ling Jan
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Publication number: 20120029338Abstract: A medical inspection apparatus includes a main body and an inspection module. The main body has at least two guide rails and at least two sliding blocks which are slidably coupled to the guide rails respectively, and the inspection module further includes at least one pivot, and each of the sliding blocks is pivotally connected to the inspection module with a pivot, so that the inspection module is capable of sliding on the sliding rail to regulate the height and rotating with respect to the pivot to regulate the inclination. Moreover, the main body has a first supporting component and a second supporting component, so that the combination of the first supporting component and the second supporting component can provide three-ended support for an inspected person.Type: ApplicationFiled: July 8, 2011Publication date: February 2, 2012Applicant: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: PO-HSIU KUO, Yu-Ching Ni, Meei-Ling Jan
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Publication number: 20110106473Abstract: The present invention provides a method for calibrating the crystal-level detection efficiency, which is capable of evaluating the influences caused by the penetration effect of the crystals of a scintillation detector so as to calculate the difference of detection efficiency between crystals correctly and thereby calibrate the difference between crystals appropriately such that the quality of the imaging result is improved accordingly. The method of present invention is simple without modifying the hardware design and consequently the design cost, manpower cost and time cost can be reduced.Type: ApplicationFiled: July 21, 2010Publication date: May 5, 2011Applicant: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: TIEN-HSIU TSAI, Meei-Ling Jan, Yu-Ching Ni
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Patent number: 7778452Abstract: An image reconstruction method for structuring planar images into three-dimension images is disclosed in the present invention.Type: GrantFiled: November 22, 2006Date of Patent: August 17, 2010Assignee: Institute of Nuclear Energy Research Atomic Energy Council, Executive YuanInventors: Meei-Ling Jan, Keh-Shih Chiang, Yu-Ching Ni