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公开(公告)号：US11448595B2
公开(公告)日：2022-09-20
申请号：US17084738
申请日：2020-10-30
Applicant: CORNING INCORPORATED
Inventor： Ryan Claude Andrews , Rostislav Vatchev Roussev , Antons Treikalis , Ming Yang
Abstract: The prism-coupling systems and methods include using a prism-coupling system to collect a 2D digital mode spectrum of an IOX article. The mode line and critical angle positions and orientations are found by performing a weighted fit to mode line and critical angle images and are used to define a compensated mode spectrum. If mode line tilt is found, it is removed from the 2D digital mode spectrum to define the compensated mode spectrum. The compensated mode spectrum is then processed using techniques known in the art to provide a more accurate estimate of stress-related characteristics of the IOX sample versus using the uncompensated mode spectrum. Derivative-based methods of accurately establishing positions of intensity transitions in a mode spectrum of an IOX sample using a derivative spectrum and curve fitting are also disclosed.
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公开(公告)号：US20250095164A1
公开(公告)日：2025-03-20
申请号：US18888313
申请日：2024-09-18
Applicant: CORNING INCORPORATED
Abstract: Various embodiments disclosed relate to a method and system for quantifying the flow speed of glass liquid from digital video data. The present disclosure includes capturing images from a video, cropping an area from each image, and concatenating the area from each image into a single image. Additionally, the disclosure includes preprocessing the single image, performing template matching on the preprocessed single image, determining boundary indexes, and cropping a region from the preprocessed single image based on the boundary indexes. The disclosure also includes calculating gradients in the cropped region, identifying a pixel with a maximum gradient, determining an average row index for columns with multiple pixels, performing iterative linear regression on row and column indexes to find a line crossing all the maximum gradient pixels with the least error, and quantifying a flow speed of glass liquid based on a final slope of the line.
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公开(公告)号：US20210131959A1
公开(公告)日：2021-05-06
申请号：US17084738
申请日：2020-10-30
Applicant: Corning Incorporated
Inventor： Ryan Claude Andrews , Rostislav Vatchev Roussev , Antons Treikalis , Ming Yang
Abstract: The prism-coupling systems and methods include using a prism-coupling system to collect a 2D digital mode spectrum of an IOX article. The mode line and critical angle positions and orientations are found by performing a weighted fit to mode line and critical angle images and are used to define a compensated mode spectrum. If mode line tilt is found, it is removed from the 2D digital mode spectrum to define the compensated mode spectrum. The compensated mode spectrum is then processed using techniques known in the art to provide a more accurate estimate of stress-related characteristics of the IOX sample versus using the uncompensated mode spectrum. Derivative-based methods of accurately establishing positions of intensity transitions in a mode spectrum of an IOX sample using a derivative spectrum and curve fitting are also disclosed.
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