Patents by Inventor Jianrong Wu

Jianrong Wu 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).

  • Publication number: 20210139880
    Abstract: The disclosure discloses microbial conductive ceramics and a preparation method and application thereof, and belongs to the technical field of microorganisms and the technical field of semiconductor materials. The disclosure is based on ordinary insulating macroporous ceramics, using the means of cell immobilization and the principle of microbial adsorption, to prepare the microbial conductive ceramics including macroporous ceramics, microbes immobilized on the macroporous ceramics and metal ions adsorbed to the microbes. The microbial conductive ceramics have excellent performance, and the conductivity of the microbial conductive ceramics can reach 2.91×106 S/m. At the same time, the cost of the microbial conductive ceramics is low, only 10% of the cost of conductive ceramics with the same conductivity.
    Type: Application
    Filed: December 18, 2020
    Publication date: May 13, 2021
    Inventors: Minjie GAO, Xiaobei ZHAN, Zhitao LI, Yun JIANG, Jianrong WU, Hongtao ZHANG, Jiajun YAN
  • Patent number: 10136078
    Abstract: A random grating based compressive sensing wideband hyperspectral imaging system comprising a front imaging component, an optical splitting component, more than two branches, and a computer, with each branch having an exit pupil transformation component and a compressive spectral imaging component. The system is based on compressive sensing theory, makes use of the correlation between spectra, increases compression rate on the spectral dimension, realizes three-dimensional compressive collection of wideband spectral image data, and greatly reduces data collection amount. The system is capable of measuring spectral image information on a wideband spectrum with a single exposure, and may obtain high spatial resolution and high spectral resolution by means of designing the random gratings on the various spitting paths.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: November 20, 2018
    Assignee: Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences
    Inventors: Shensheng Han, Zhentao Liu, Jianrong Wu, Enrong Li, Shiyu Tan, Zhe Chen
  • Patent number: 9912878
    Abstract: A flicker detection apparatus and method where flickers in the video images are detected based on the mean detection values obtained from pairs of neighboring frames in the current frame and the former n frames, which is able to perform flicker detection efficiently, and the detection results are accurate.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: March 6, 2018
    Assignee: FUJITSU LIMITED
    Inventor: Jianrong Wu
  • Publication number: 20170126990
    Abstract: A random grating based compressive sensing wideband hyperspectral imaging system comprising a front imaging component, an optical splitting component, more than two branches, and a computer, with each branch having an exit pupil transformation component and a compressive spectral imaging component. The system is based on compressive sensing theory, makes use of the correlation between spectra, increases compression rate on the spectral dimension, realizes three-dimensional compressive collection of wideband spectral image data, and greatly reduces data collection amount. The system is capable of measuring spectral image information on a wideband spectrum with a single exposure, and may obtain high spatial resolution and high spectral resolution by means of designing the random gratings on the various spitting paths.
    Type: Application
    Filed: January 17, 2017
    Publication date: May 4, 2017
    Inventors: Shensheng HAN, Zhentao LIU, Jianrong WU, Enrong LI, Shiyu TAN, Zhe CHEN
  • Publication number: 20170109892
    Abstract: A method and apparatus for detecting a traffic state and electronic equipment where the apparatus includes: a first calculating unit configured to detect a contour of an object from a region of interest of a traffic surveillance image to generate a contour image, and calculate an occupation ratio of the contour in the region of interest based on the contour image; a first detecting unit configured to detect whether there exists an object of a predetermined size moving in the region of interest, and determine a motion state of a vehicle in the region of interest; and a first determining unit configured to determine a traffic state according to the occupation ratio and the motion state. The embodiments of the present disclosure determine a traffic state according to the number of vehicles and motion states of the vehicles in the traffic surveillance image.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 20, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Jianrong WU, Zhiming TAN
  • Publication number: 20170104914
    Abstract: A flicker detection apparatus and method where flickers in the video images are detected based on the mean detection values obtained from pairs of neighboring frames in the current frame and the former n frames, which is able to perform flicker detection efficiently, and the detection results are accurate.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 13, 2017
    Applicant: FUJITSU LIMITED
    Inventor: Jianrong WU
  • Publication number: 20170032669
    Abstract: An apparatus and method for controlling traffic lights of a crossing where the traffic lights are controlled based on the jam states of the roads and according to jam levels of the roads, weights of the roads and the number of vehicles passing the crossing, which are fast in response and accurate in estimation, and the traffic lights can be quickly and efficiently controlled, thereby efficiently alleviating or solving the problem of traffic jam.
    Type: Application
    Filed: July 29, 2016
    Publication date: February 2, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Jianrong WU, Zhiming TAN, Qi WANG, Akihiro HIGASHI
  • Patent number: 9558537
    Abstract: The present invention provides an image denoising method and an image denoising apparatus. The image denoising method includes performing preliminary denoising processing to an acquired image to be processed, so as to obtain a preliminarily denoised image; calculating a residual quantity corresponding to a central pixel of each unit area in the image to be processed according to numerical values of specific energy parameters to which the image to be processed and the preliminarily denoised image correspond, respectively; and using the residual quantity to calculate a weight matrix corresponding to each unit area, and performing non-local mean value calculation to the image to be processed according to the weight matrix, so as to realize the denoising processing of the image to be processed. The image denoising method is able to denoise effectively, and make a denoised image more visually natural.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: January 31, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Jianrong Wu, Zhiming Tan, Akihiro Higashi
  • Patent number: 9530190
    Abstract: The present invention provides an image denoising method and an image denoising apparatus. The image denoising method includes performing preliminary denoising processing to an acquired image to be processed, so as to obtain a preliminarily denoised image; calculating a residual quantity corresponding to a central pixel of each unit area in the image to be processed according to numerical values of specific energy parameters to which the image to be processed and the preliminarily denoised image correspond, respectively; and using the residual quantity to calculate a weight matrix corresponding to each unit area, and performing non-local mean value calculation to the image to be processed according to the weight matrix, so as to realize the denoising processing of the image to be processed. The image denoising method is able to denoise effectively, and make a denoised image more visually natural.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: December 27, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Jianrong Wu, Zhiming Tan, Akihiro Higashi
  • Patent number: 9443286
    Abstract: The embodiments provide an image processing method and apparatus, which combine a wavelet transform method with a non-local means method, comprising: performing N-level decomposition of an original gray image by using a wavelet transform method; and performing non-local means processing and wavelet reconstruction of each level of components one by one starting from an N-th level, so as to obtain a processed gray image. The image processing method and apparatus can effectively remove various image noises, and well reserve the image details.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: September 13, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Jianrong Wu, Xuan Fu, Zheng Wang, Akihiro Higashi
  • Patent number: 9299163
    Abstract: A method and apparatus for processing a gray image, including: calculating a mean value and a standard difference of each edge pixel needing processing in an original gray image, and determining a predefined noise variance of each edge pixel according to the mean value and the standard difference; performing two-dimensional discrete cosine transform on an original gray image of a first adjacent area of each edge pixel; performing Wiener filtering on the two-dimensional discrete cosine transformed image data according to the noise variance; performing discrete cosine inverse transform on the two-dimensional Wiener filtered image data to obtain a filtered gray image of the first adjacent area; and extracting a filtered pixel value of each edge pixel from the filtered gray image of the first adjacent area, and obtaining a processed pixel value of each edge pixel by performing weighted summation on the filtered pixel value and an original pixel value.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: March 29, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Jianrong Wu, Xuan Fu, Akihiro Higashi
  • Publication number: 20150339806
    Abstract: The present invention provides an image denoising method and an image denoising apparatus. The image denoising method includes performing preliminary denoising processing to an acquired image to be processed, so as to obtain a preliminarily denoised image; calculating a residual quantity corresponding to a central pixel of each unit area in the image to be processed according to numerical values of specific energy parameters to which the image to be processed and the preliminarily denoised image correspond, respectively; and using the residual quantity to calculate a weight matrix corresponding to each unit area, and performing non-local mean value calculation to the image to be processed according to the weight matrix, so as to realize the denoising processing of the image to be processed. The image denoising method is able to denoise effectively, and make a denoised image more visually natural.
    Type: Application
    Filed: May 26, 2015
    Publication date: November 26, 2015
    Applicant: FUJITSU LIMITED
    Inventors: Jianrong WU, Zhiming TAN, Akihiro HIGASHI
  • Patent number: 9167175
    Abstract: The present invention discloses a flicker detection method and a flicker detection apparatus. The method includes: calculating the mean values of selected rows of image frames to constitute a mean value vector; calculating a differential vector between the mean value vectors of a current frame and a previous frame; calculating a DC-free difference vector; building a first square wave and a second square wave, and a third square wave and a fourth square wave; calculating a first frequency reference value; calculating a second frequency reference value; and if the difference between the first and second frequency reference values is above a threshold, then it is determined that flicker is present in the current frame; otherwise, it is determined that no flicker is present.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: October 20, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Jianrong Wu, Xuan Fu, Akihiro Higashi
  • Patent number: 9148583
    Abstract: The present invention discloses a flicker detection method and a flicker detection apparatus. The method includes: calculating the mean values of selected rows of image frames to constitute a mean value vector; calculating a differential vector between the mean value vectors of a current frame and a previous frame; calculating a DC-free difference vector by subtracting a direct current component from respective elements of the differential vector; calculating a power spectrum corresponding to the DC-free difference vector; obtaining a first frequency reference value; obtaining a second frequency reference value; and if the difference between the first and second frequency reference values is above a threshold, then it is determined that flicker is present in the current frame; otherwise, it is determined that no flicker is present.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: September 29, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Jianrong Wu, Xuan Fu, Akihiro Higashi
  • Publication number: 20150029360
    Abstract: The present invention discloses a flicker detection method and a flicker detection apparatus. The method includes: calculating the mean values of selected rows of image frames to constitute a mean value vector; calculating a differential vector between the mean value vectors of a current frame and a previous frame; calculating a DC-free difference vector; building a first square wave and a second square wave, and a third square wave and a fourth square wave; calculating a first frequency reference value; calculating a second frequency reference value; and if the difference between the first and second frequency reference values is above a threshold, then it is determined that flicker is present in the current frame; otherwise, it is determined that no flicker is present.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 29, 2015
    Applicant: Fujitsu Limited
    Inventors: Jianrong WU, Xuan FU, Akihiro HIGASHI
  • Publication number: 20150022686
    Abstract: The present invention discloses a flicker detection method and a flicker detection apparatus. The method includes: calculating the mean values of selected rows of image frames to constitute a mean value vector; calculating a differential vector between the mean value vectors of a current frame and a previous frame; calculating a DC-free difference vector by subtracting a direct current component from respective elements of the differential vector; calculating a power spectrum corresponding to the DC-free difference vector; obtaining a first frequency reference value; obtaining a second frequency reference value; and if the difference between the first and second frequency reference values is above a threshold, then it is determined that flicker is present in the current frame; otherwise, it is determined that no flicker is present.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 22, 2015
    Applicant: Fujitsu Limited
    Inventors: Jianrong WU, Xuan FU, Akihiro HIGASHI
  • Publication number: 20140355877
    Abstract: A method and apparatus for processing a gray image, including: calculating a mean value and a standard difference of each edge pixel needing processing in an original gray image, and determining a predefined noise variance of each edge pixel according to the mean value and the standard difference; performing two-dimensional discrete cosine transform on an original gray image of a first adjacent area of each edge pixel; performing Wiener filtering on the two-dimensional discrete cosine transformed image data according to the noise variance; performing discrete cosine inverse transform on the two-dimensional Wiener filtered image data to obtain a filtered gray image of the first adjacent area; and extracting a filtered pixel value of each edge pixel from the filtered gray image of the first adjacent area, and obtaining a processed pixel value of each edge pixel by performing weighted summation on the filtered pixel value and an original pixel value.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Jianrong WU, Xuan FU, Akihiro HIGASHI
  • Publication number: 20140294318
    Abstract: The embodiments provide an image processing method and apparatus, which combine a wavelet transform method with a non-local means method, comprising: performing N-level decomposition of an original gray image by using a wavelet transform method; and performing non-local means processing and wavelet reconstruction of each level of components one by one starting from an N-th level, so as to obtain a processed gray image. The image processing method and apparatus can effectively remove various image noises, and well reserve the image details.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: Fujitsu Limited
    Inventors: Jianrong Wu, Xuan Fu, Zheng Wang, Akihiro Higashi