Patents by Inventor Bian Qian

Bian Qian 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: 20240420489
    Abstract: A visual analysis system may be automatically focused (or the focus of such a system may be automatically corrected) by subjecting one or more images captured by such a system to a multi-layer analysis. In such an analysis, a cell boundary may be identified in an input image based on the lightness value of the pixels of the input image. Based on the identified cell boundary, a predicted nominal focus value is determined which can provide a focusing distance (e.g., a distance between the focal plane of a camera used when an image was captured and the actual focal plane for an in-focus image). This focusing distance may then be used to (re) focus a camera or for other purposes (e.g., generating an alert).
    Type: Application
    Filed: July 26, 2024
    Publication date: December 19, 2024
    Inventors: Bart J. WANDERS, Jiuliu LU, Bian QIAN, John S. RILEY
  • Publication number: 20240357232
    Abstract: A focusing distance (e.g., a distance between a focal plane of a camera used when n image was captured and the actual focal plane for an in-focus image) in a visual analysis system may be determined by subjecting one or more images captured by such a system to a multi-layer analysis. In such an analysis, an input may be subjected to one or more convolution filters, and the ultimate result of such convolution may be provided to a dense layer which can provide the focusing distance. This focusing distance may then be used to (re)focus a camera or for other purposes (e.g., generating an alert).
    Type: Application
    Filed: June 11, 2024
    Publication date: October 24, 2024
    Inventors: Jiuliu LU, Bian QIAN, John S. RILEY, Bart WANDERS, Ken GOOD
  • Patent number: 10705011
    Abstract: A method for dynamic focusing is presented that can be performed by a dynamic focusing controller that can receive images from the image capture device, and for each image, determine a border of the particle within the image, and calculate a pixel intensity ratio of the image based on the border of the particle. The dynamic focusing controller can also calculate a median pixel intensity ratio from the pixel intensity ratios for each image, determine a focal distance direction based on the median pixel intensity ratio, calculate a focal distance based on the median pixel intensity ratio when the focal distance direction is positive, and calculate the focal distance based on a median border width when the focal distance direction is negative. The autofocusing controller can then send an instruction to the focusing mechanism to adjust the image capture device by the focal distance in the focal distance direction.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: July 7, 2020
    Assignee: Beckman Coulter, Inc.
    Inventors: Jiuliu Lu, Bian Qian, Bart J. Wanders, Ken Good, John Riley
  • Publication number: 20190369000
    Abstract: A method for dynamic focusing is presented that can be performed by a dynamic focusing controller that can receive images from the image capture device, and for each image, determine a border of the particle within the image, and calculate a pixel intensity ratio of the image based on the border of the particle. The dynamic focusing controller can also calculate a median pixel intensity ratio from the pixel intensity ratios for each image, determine a focal distance direction based on the median pixel intensity ratio, calculate a focal distance based on the median pixel intensity ratio when the focal distance direction is positive, and calculate the focal distance based on a median border width when the focal distance direction is negative. The autofocusing controller can then send an instruction to the focusing mechanism to adjust the image capture device by the focal distance in the focal distance direction.
    Type: Application
    Filed: October 5, 2017
    Publication date: December 5, 2019
    Inventors: Jiuliu Lu, Bian Qian, Bart J. Wanders, Ken Good, John Riley
  • Patent number: 10429401
    Abstract: Container identification data from a container inspection unit that analyzes a container containing a liquid is combined with liquid level detection raw data from a liquid level detection unit that analyzes the container containing the liquid and a liquid level detection result is generated. The liquid level detection result is cross-checked with additional data from the container inspection unit. The result can be used to plan a route for the container in the laboratory automation system.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: October 1, 2019
    Assignee: Beckman Coulter, Inc.
    Inventors: Sebastian Streibl, Jiuliu Lu, Bian Qian, Melvin Ayala
  • Publication number: 20160018427
    Abstract: Container identification data from a container inspection unit that analyzes a container containing a liquid is combined with liquid level detection raw data from a liquid level detection unit that analyzes the container containing the liquid and a liquid level detection result is generated. The liquid level detection result is cross-checked with additional data from the container inspection unit. The result can be used to plan a route for the container in the laboratory automation system.
    Type: Application
    Filed: July 20, 2015
    Publication date: January 21, 2016
    Inventors: Sebastian Streibl, Jiuliu Lu, Bian Qian, Melvin Ayala