Patent №
US 11,145,035
Granted
2021-10-12
Filed 2020
Owner
CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
16901093
The present invention proposes a method for rapidly dehazing an underground pipeline image based on dark channel prior (DCP). The method includes: preprocessing a hazy underground pipeline image to obtain a dark channel image corresponding to the hazy image; average-filtering the obtained dark channel image to estimate an image transmittance; compensating an offset value for an average filtering result to obtain a rough estimate of the transmittance; using a pixel value of the original image and an average-filtered image to estimate a global atmospheric light value; and using a physical restoration model to restore a dehazed image. The method of the present invention realizes the timeliness of the algorithm while ensuring the dehazing effect, and is suitable for scientific fields such as video monitoring of underground pipeline environment and identification of underground pipeline defects.
AI classification
Ownership
CHINA UNIVERSITY OF MINING & TECHNOLOGY, BEIJING
assignment · 529360189
Assignors
LI, CE, YANG, FENG, HE, TAN
On an employer assignment, the assignors are typically the inventors.