Journal
OPTICS AND LASERS IN ENGINEERING
Volume 142, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2021.106596
Keywords
Grayscale image; Infrared thermography; Image interpolation; Infrared radiance; Smoke transmittance
Categories
Funding
- State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology
- National Natural Science Foundation of China [11672041]
Ask authors/readers for more resources
In a smoke environment, target recognition is hindered by the transmittance of smoke. This study proposes a numerical method to calculate infrared smoke transmittance and presents a solution through a test example. The new method eliminates anomalies and provides accurate solutions for engineering applications.
In a smoke environment, target recognition is a pivotal problem faced by imaging-guided weapons and reconnaissance equipment. In fact, the transmittance of smoke is the main hindrance to recognition. In this study, a numerical method for extracting pixel radiance to calculate infrared (IR) smoke transmittance is proposed. First, a description of the field test and the equation governing the transmittance of IR smoke are introduced. Next, a method for extracting pixel radiance from an IR image is presented; specifically, a scheme that uses a bicubic interpolation algorithm, to calculate the radiance of the background pixels is presented. Finally, the steps of the method are illustrated through a test example. The results show that the new method eliminates the anomaly of the transmittance value being less than 0 or greater than 1, and in addition, yields sufficiently accurate solutions for engineering applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available