The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2019
Filed:
Mar. 20, 2019
Huazhong University of Science and Technology, Wuhan, CN;
Tianxu Zhang, Wuhan, CN;
Xuan Hou, Wuhan, CN;
Chuan Zhang, Wuhan, CN;
Li Liu, Wuhan, CN;
Quan Chen, Wuhan, CN;
Ao Zhong, Wuhan, CN;
Mingxing Xu, Wuhan, CN;
Yutian Zhou, Wuhan, CN;
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Wuhan, CN;
Abstract
An aerothermal-radiation correction method, including: using a Gaussian surface to approximate a thermal radiation noise, performing a Fourier transform on the Gaussian surface so as to obtain a centralized spectrum of the thermal radiation noise, constructing a filter function H based on the centralized spectrum of the thermal radiation noise; performing a Fourier transform on the aerothermal-radiation degraded image f so as to obtain a centralized spectrum F, taking dot product of F and H to obtain a filtered spectrum G; and performing an inverse Fourier transform on filtered spectrum G to obtain a modulus, and acquire a corrected image. The method effectively removes background noise generated by aerothermal radiation, greatly improves image quality and image signal-to-noise ratio. The method features reduced computational complexity and a shorter operation time, and is suited for real-time processing.