Patents by Inventor Changjiu YANG
Changjiu YANG 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: 11973337Abstract: This invention relates to the technical field of harmonic elimination for ferromagnetic resonance for a voltage transformer (abbreviated as PT), in particular, to a harmonic elimination method for ferromagnetic resonance for an active resistance-matching voltage transformer based on PID-adjustment, including compiling a resistance matching algorithm; designing and building a harmonic elimination control system based on the PID control strategy; presetting an active resistance-matching strategy; designing an engineering scheme for placing resistors.Type: GrantFiled: August 17, 2023Date of Patent: April 30, 2024Assignee: Qujing Power Supply Bureau of Yunnan Power Grid Co., LtdInventors: Xiaohong Zhu, Lianjing Yang, Fei Mao, Rong Zhang, Yang Yang, Jiangyun Su, Wenfei Feng, Zhe Li, Pengjin Qiu, Jianbin Li, Zhikun Hong, Weirong Yang, Changjiu Zhou, Yingqiong Zhang, Rui Xu, Guibing Duan
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Publication number: 20240072531Abstract: This invention relates to the technical field of harmonic elimination for ferromagnetic resonance for a voltage transformer (abbreviated as PT), in particular, to a harmonic elimination method for ferromagnetic resonance for an active resistance-matching voltage transformer based on PID-adjustment, including compiling a resistance matching algorithm; designing and building a harmonic elimination control system based on the PID control strategy; presetting an active resistance-matching strategy; designing an engineering scheme for placing resistors.Type: ApplicationFiled: August 17, 2023Publication date: February 29, 2024Inventors: Xiaohong ZHU, Lianjing YANG, Fei MAO, Rong ZHANG, Yang YANG, Jiangyun SU, Wenfei FENG, Zhe LI, Pengjin QIU, Jianbin LI, Zhikun HONG, Weirong YANG, Changjiu ZHOU, Yingqiong ZHANG, Rui XU, Guibing DUAN
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Publication number: 20230370734Abstract: An embodiment of this application discloses an image capturing apparatus, including a rolling shutter image sensor, a wheel, and a driving apparatus. The wheel is located on a photosensitive side of the rolling shutter image sensor, and a light shielding part for blocking light and a light transmission part for transmitting light are disposed on the wheel. When the driving apparatus drives the wheel to rotate, the light transmission part on the wheel periodically transmits light, so that a plurality of rows of photosensitive units in the rolling shutter image sensor receive the transmitted light, and convert a light signal into an electric signal through optical-to-electrical conversion. In addition, the rolling shutter image sensor is combined with the wheel, to reduce costs of the image capturing apparatus.Type: ApplicationFiled: July 24, 2023Publication date: November 16, 2023Inventors: Xiaolei CHEN, Qing ZHU, Changcai LAI, Hongqi HU, Changjiu YANG
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Publication number: 20230032520Abstract: This application discloses a photographing apparatus and method, and relates to the field of image processing. When a high-quality image in a low illumination environment is obtained, costs are reduced, a size is reduced, and product compatibility is improved. The method includes: controlling a light filtering unit to: transparently transmit visible light in incident light and block infrared light in the incident light in a first image exposure interval, transparently transmit the infrared light in the incident light in a first time period of a second image exposure interval, and block the incident light in a second time period of the second image exposure interval; performing, by using an image sensor to obtain a first image, and performing photoelectric imaging on a light ray to obtain a second image; and synthesizing the first image and the second image, to generate a first target image.Type: ApplicationFiled: October 13, 2022Publication date: February 2, 2023Inventors: Xiaolei CHEN, Jinxin HUANG, Changcai LAI, Hongqi HU, Changjiu YANG, Shisheng ZHENG
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Patent number: 11436702Abstract: A method for super-resolution image reconstruction may include obtaining an original image that has first resolution and includes a target object. The method may also include generating a first target image by increasing the first resolution of the original image. The method may also include determining first feature points relating to the target object based on the first target image. The method may also include determining first priori information relating to the target object based on the first feature points relating to the target object. The method may also include generating a second target image having second resolution higher than the first resolution based on the first priori information relating to the target object and the first target image.Type: GrantFiled: May 29, 2020Date of Patent: September 6, 2022Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventor: Changjiu Yang
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Publication number: 20210295480Abstract: According to aspects of the present disclosure, methods, systems, and media for processing an image are provided. A system may include at least one computer-readable storage medium including a set of instructions for processing an original image, and at least one processor in communication with the at least one computer-readable storage medium. When executing the set of instructions, the system is directed to obtain a first luminance image of the original image; decompose the first luminance image to provide a plurality of first decomposed images; adjust pixel frequencies in at least some of the plurality of first decomposed images to generate a plurality of second decomposed images; generate a second luminance image of the original image based on the plurality of second decomposed images; and determine a final image of the original image based on the first luminance image, the second luminance image, and the original image.Type: ApplicationFiled: June 9, 2021Publication date: September 23, 2021Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventors: Changjiu YANG, Xiaotao JIANG
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Patent number: 11094045Abstract: According to aspects of the present disclosure, methods, systems, and media for processing an image are provided. A system may include at least one computer-readable storage medium including a set of instructions for processing an original image, and at least one processor in communication with the at least one computer-readable storage medium. When executing the set of instructions, the system is directed to obtain a first luminance image of the original image; decompose the first luminance image to provide a plurality of first decomposed images; adjust pixel frequencies in at least some of the plurality of first decomposed images to generate a plurality of second decomposed images; generate a second luminance image of the original image based on the plurality of second decomposed images; and determine a final image of the original image based on the first luminance image, the second luminance image, and the original image.Type: GrantFiled: December 13, 2018Date of Patent: August 17, 2021Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventors: Changjiu Yang, Xiaotao Jiang
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Patent number: 11069090Abstract: A method for identifying a color of an object may include obtaining a target image including the object and identifying in the target image a region of interest (ROI) including the object. The method may also include identifying at least one sub-region of the object from the ROI of the object and determining at least one first characteristic vector respectively corresponding to the at least one sub-region. The method may further include determining a second characteristic vector of the ROI of the object and identifying, based on the at least one first characteristic vector and the second characteristic vector, the color of the object using a color identification model. The method may further include correcting the color of the target image.Type: GrantFiled: December 18, 2019Date of Patent: July 20, 2021Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventors: Jianhai Fu, Changjiu Yang
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Publication number: 20200327643Abstract: A method for super-resolution image reconstruction may include obtaining an original image that has first resolution and includes a target object. The method may also include generating a first target image by increasing the first resolution of the original image. The method may also include determining first feature points relating to the target object based on the first target image. The method may also include determining first priori information relating to the target object based on the first feature points relating to the target object. The method may also include generating a second target image having second resolution higher than the first resolution based on the first priori information relating to the target object and the first target image.Type: ApplicationFiled: May 29, 2020Publication date: October 15, 2020Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventor: Changjiu YANG
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Publication number: 20200126261Abstract: A method for identifying a color of an object may include obtaining a target image including the object and identifying in the target image a region of interest (ROI) including the object. The method may also include identifying at least one sub-region of the object from the ROI of the object and determining at least one first characteristic vector respectively corresponding to the at least one sub-region. The method may further include determining a second characteristic vector of the ROI of the object and identifying, based on the at least one first characteristic vector and the second characteristic vector, the color of the object using a color identification model. The method may further include correcting the color of the target image.Type: ApplicationFiled: December 18, 2019Publication date: April 23, 2020Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventors: Jianhai FU, Changjiu YANG
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Publication number: 20190164263Abstract: According to aspects of the present disclosure, methods, systems, and media for processing an image are provided. A system may include at least one computer-readable storage medium including a set of instructions for processing an original image, and at least one processor in communication with the at least one computer-readable storage medium. When executing the set of instructions, the system is directed to obtain a first luminance image of the original image; decompose the first luminance image to provide a plurality of first decomposed images; adjust pixel frequencies in at least some of the plurality of first decomposed images to generate a plurality of second decomposed images; generate a second luminance image of the original image based on the plurality of second decomposed images; and determine a final image of the original image based on the first luminance image, the second luminance image, and the original image.Type: ApplicationFiled: December 13, 2018Publication date: May 30, 2019Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventors: Changjiu YANG, Xiaotao JIANG