Patents by Inventor Kwong W. Au

Kwong W. Au 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).

  • Patent number: 9696210
    Abstract: A process is provided for mapping temperatures in an enclosure during a combustion process. A device setting of an image-capturing device is provided. An intensity-temperature mapping is generated by performing an intensity-temperature calibration based on an intensity of an image pixel in a field of view (FOV) generated by the image-capturing device, a corresponding temperature measurement, and a selected device setting. Each emitted radiation of selected regions is detected based on a first image in the FOV. At least one region is determined whether the region is poor responsive, based on the intensity-temperature mapping associated with the device setting. The at least one poor responsive region is replaced with acceptable regions unaffected by the saturation from at least one other image captured at a different device setting for higher temperature resolution.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: July 4, 2017
    Assignee: Honeywell International Inc.
    Inventors: Sharath Venkatesha, Kwong W. Au, Stefano Bietto
  • Patent number: 9664568
    Abstract: A process is provided for mapping temperatures in an enclosure. A spectral band for a multi-spectral image-capturing device is selected. An intensity-temperature mapping is generated by performing an intensity-temperature calibration based on an intensity of an image pixel in a field of view (FOV) generated by the multi-spectral image-capturing device, a corresponding temperature measurement, and a selected device setting of the image-capturing device. An emitted radiation is detected based on a first spectral image in the FOV. At least one region is determined whether it is poor responsive, which is underexposed or overexposed, such that an accurate temperature is unable to be estimated based on a temperature value associated with the spectral band. Temperatures of the at least one poor responsive regions are replaced with temperatures from corresponding acceptable regions from at least one other spectral image to provide an extended temperature mapping of the enclosure.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: May 30, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Kwong W. Au, Sharath Venkatesha, Stefano Bietto
  • Publication number: 20150362371
    Abstract: A process is provided for mapping temperatures in an enclosure. A spectral band for a multi-spectral image-capturing device is selected. An intensity-temperature mapping is generated by performing an intensity-temperature calibration based on an intensity of an image pixel in a field of view (FOV) generated by the multi-spectral image-capturing device, a corresponding temperature measurement, and a selected device setting of the image-capturing device. An emitted radiation is detected based on a first spectral image in the FOV. At least one region is determined whether it is poor responsive, which is underexposed or overexposed, such that an accurate temperature is unable to be estimated based on a temperature value associated with the spectral band. Temperatures of the at least one poor responsive regions are replaced with temperatures from corresponding acceptable regions from at least one other spectral image to provide an extended temperature mapping of the enclosure.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 17, 2015
    Inventors: Kwong W. Au, Sharath Venkatesha, Stefano Bietto
  • Publication number: 20150362372
    Abstract: A process is provided for mapping temperatures in an enclosure during a combustion process. A device setting of an image-capturing device is provided. An intensity-temperature mapping is generated by performing an intensity-temperature calibration based on an intensity of an image pixel in a field of view (FOV) generated by the image-capturing device, a corresponding temperature measurement, and a selected device setting. Each emitted radiation of selected regions is detected based on a first image in the FOV. At least one region is determined whether the region is poor responsive, based on the intensity-temperature mapping associated with the device setting. The at least one poor responsive region is replaced with acceptable regions unaffected by the saturation from at least one other image captured at a different device setting for higher temperature resolution.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 17, 2015
    Inventors: Sharath Venkatesha, Kwong W. Au, Stefano Bietto