Optical fiber image processing method based on nonuniform correction

A non-uniformity correction and image processing technology, applied in image data processing, image enhancement, image analysis, etc., can solve the problems of inability to process the black spot of the fiber core, incomplete edge of the fiber image, and prone to judgment errors, etc. Remove dark spots and bright spots, accurate judgment, reasonable design effect
CN107784673AActive Publication Date: 2018-03-09THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
Publication Date
2018-03-09

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Abstract

The invention discloses an optical fiber image processing method based on nonuniform correction and belongs to the field of optical fiber image processing. The optical fiber image processing method comprises the steps that an optical fiber wrapping layer, an optical fiber core and an image background in an optical fiber image are divided to determine a gray scale interval needing nonuniform correction, images different in illumination intensity under the same optical fiber microscope lens are selected as calibration images and calibration parameters are determined, and calibration parameters are utilized to perform nonuniform correction by using a two-point correction algorithm. By adopting the optical fiber image processing method, black spots and hot spots in the optical fiber image background are effectively removed under the condition that fewer hardware resources are occupied, accordingly the interference of image defects to optical fiber variety and position identification is reduced, and the optical fiber alignment accuracy is improved.
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Description

technical field

[0001] The invention belongs to the field of optical fiber image processing, in particular to an optical fiber image processing method based on non-uniformity correction. Background technique

[0002] During the working process of the optical fiber fusion splicer, dust or oil may adhere to the lens of the microscope objective lens, resulting in black spots or bright spots on the fiber image. Generally, there are two processing methods: the first is based on the calibration of two-point non-uniformity However, the general non-uniformity correction algorithm is only effective in the gray-scale range where the response area is approximately linear, and it will cause serious distortion when processing images with a wide gray-scale range. The second is to use hardware to process the source data of the optical fiber image. First, the position of the optical fiber in the image is judged, and then the area where the optical fiber is located is calibrated, and the ima...

Claims

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