Background radiance estimation and gas concentration-length quantification method for optical gas imaging camera
AssigneeKonica Minolta Laboratory U.S.A., Inc.
InventorsLeiming Wang, Ting Xu
Life of this patent
Estimating the term…
Abstract
A gas concentration-length quantification method, including: acquiring a first image including a gas plume with a camera; identifying and segmenting pixels corresponding to the gas plume in the first image; generating a background image corresponding to the first image using an image inpainting algorithm with the first image and positional information of the segmented pixels corresponding to the gas plume as inputs; calculating a gas concentration-length for each pixel corresponding to the gas plume in the first image, based on the first image and the background image data; and triggering an alert when the gas concentration-length for at least one pixel exceeds a threshold level.
Claims17
A gas concentration-length quantification method, comprising:
- acquiring a first image including a gas plume with a camera;
- identifying and segmenting pixels corresponding to the gas plume in the first image;
- generating a background image corresponding to the first image using an image inpainting algorithm with the first image and positional information of the segmented pixels corresponding to the gas plume as inputs;
- calculating a gas concentration-length for each pixel corresponding to the gas plume in the first image, based on the first image and the background image data;
- and
- triggering an alert when the gas concentration-length for at least one pixel exceeds a threshold level.
A gas concentration-length quantification system, comprising:
- a camera;
- a processing unit connected to the camera,
- wherein the processor performs:
- reading a first image including a gas plume from the camera;
- identifying and segmenting pixels corresponding to the gas plume in the first image;
- generating a background image corresponding to the first image using an image inpainting algorithm with the first image and positional information of the segmented pixels corresponding to the gas plume as inputs;
- calculating a gas concentration-length for each pixel corresponding to the gas plume in the first image, based on the first image and the background image data;
- and
- triggering an alert when the gas concentration-length for at least one pixel exceeds a threshold level.
A non-transitory computer readable medium (CRM) storing computer readable program code embodied therein that:
- reads a first image including a gas plume;
- identifies and segments pixels corresponding to the gas plume in the first image;
- generates a background image corresponding to the first image using an image inpainting algorithm with the first image and positional information of the segmented pixels corresponding to the gas plume as inputs;
- calculates a gas concentration-length for each pixel corresponding to the gas plume in the first image, based on the first image and the background image data;
- and
- triggers an alert when the gas concentration-length for at least one pixel exceeds a threshold level.
Dependencies are inferred from the claim text.