Modeling background response and applications for mid-infrared remote sensing camera

Hu, Zhuoyue; Hei, Huage; Li, Xiaoyan; Chen, Fansheng

doi:10.1016/j.infrared.2019.103082

Cited by 6 publications

(7 citation statements)

References 17 publications

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“…Since any object with a temperature higher than 0K emits infrared radiation, the IRFPA receives not only radiation from the target but also radiation emitted by the infrared optical system itself. Internal stray radiation has been observed to have a significant impact on the system offset, resulting in a shift in the output gray value [ 19 , 21 , 22 ]. Therefore, it is necessary to separate the internal stray radiation from the system offset and model them as separate entities.…”

Section: Inner Stray Radiation Model and Calibration Methodsmentioning

confidence: 99%

“…In [ 21 ], the step-wise regression method was employed to select a subset of optical temperature variables, and the non-negative least squares method was utilized to ensure that the obtained coefficients were non-negative and aligned with the physical meaning. However, it is worth noting that step-wise regression adds or removes variables in a specific order, which can lead to the exclusion of important variables in the analysis.…”

Section: Inner Stray Radiation Model and Calibration Methodsmentioning

confidence: 99%

“…Hu et al [ 21 ] developed a model to characterize the variations in the background response in a mid-infrared remote sensing camera. This model incorporates the temperatures of multiple system components during the ground calibration process.…”

Section: Introductionmentioning

confidence: 99%

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Calibration Method for Airborne Infrared Optical Systems in a Non-Thermal Equilibrium State

Dong

Shen

Jia

et al. 2023

Sensors

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Airborne infrared optical systems equipped with multiple cooled infrared cameras are commonly utilized for quantitative radiometry and thermometry measurements. Radiometric calibration is crucial for ensuring the accuracy and quantitative application of remote sensing camera data. Conventional radiometric calibration methods that consider internal stray radiation are usually based on the assumption that the entire system is in thermal equilibrium. However, this assumption leads to significant errors when applying the radiometric calibration results in actual mission scenarios. To address this issue, we analyzed the changes in optical temperature within the system and developed a simplified model to account for the internal stray radiation in the non-thermal equilibrium state. Building upon this model, we proposed an enhanced radiometric calibration method, which was applied to the absolute radiometric calibration procedure of the system. The radiometric calibration experiment, conducted on the medium-wave channel of the system within a temperature test chamber, demonstrated that the proposed method can achieve a calibration accuracy exceeding 3.78% within an ambient temperature range of −30 °C to 15 °C. Additionally, the maximum temperature measurement error was found to be less than ±1.01 °C.

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Section: Inner Stray Radiation Model and Calibration Methodsmentioning

confidence: 99%

Section: Inner Stray Radiation Model and Calibration Methodsmentioning

confidence: 99%

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Calibration Method for Airborne Infrared Optical Systems in a Non-Thermal Equilibrium State

Dong

Shen

Jia

et al. 2023

Sensors

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“…Infrared remote sensing technology can accurately provide a wealth of information about the Earth’s surface or environmental conditions. Consequently, it is extensively utilized in military reconnaissance, meteorological observation, environmental monitoring, resource surveys, and disaster prevention, among other applications [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. With the continuous development of infrared remote sensing technology, the measurement of infrared radiation characteristics has become an essential tool for acquiring features and identifying complex or weak targets [ 8 , 9 , 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

Temperature-Automated Calibration Methods for a Large-Area Blackbody Radiation Source

Yang,

Cao,

Huang

et al. 2024

Sensors

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High-precision temperature control of large-area blackbodies has a pivotal role in temperature calibration and thermal imaging correction. Meanwhile, it is necessary to correct the temperature difference between the radiating (surface of use) and back surfaces (where the temperature sensor is installed) of the blackbody during the testing phase. Moreover, large-area blackbodies are usually composed of multiple temperature control channels, and manual correction in this scenario is error-prone and inefficient. At present, there is no method that can achieve temperature-automated calibration for a large-area blackbody radiation source. Therefore, this article is dedicated to achieving temperature-automated calibration for a large-area blackbody radiation source. First, utilizing two calibrated infrared thermometers, the optimal temperature measurement location was determined using a focusing algorithm. Then, a three-axis movement system was used to obtain the true temperature at the same measurement location on a large-area blackbody surface from different channels. This temperature was subtracted from the blackbody’s back surface. The temperature difference was calculated employing a weighted algorithm to derive the parameters for calibration. Finally, regarding experimental verification, the consistency error of the temperature measurement point was reduced by 85.4%, the temperature uniformity of the surface source was improved by 40.4%, and the average temperature measurement deviation decreased by 43.8%. In addition, this system demonstrated the characteristics of strong environmental adaptability that was able to perform temperature calibration under the working conditions of a blackbody surface temperature from 100 K to 573 K, which decreased the calibration time by 9.82 times.

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“…Infrared (IR) emission is commonly defined as the electromagnetic wave range from 0.76 to 300 μm [ 1 ]. In sharp contrast to that of visible emission, IR emission plays a key role in both military and civilian applications, including night vision [ 2 , 3 ], remote sensing [ 4 , 5 ], surveillance [ 6 , 7 ], target acquisition [ 8 , 9 ], optical communication [ 10 , 11 ], and so forth [ 12 , 13 , 14 , 15 ]. Motivated by this, numerous efforts have been made in the past few decades [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Infrared Light Emission Devices Based on Two-Dimensional Materials

Khan

et al. 2022

Nanomaterials

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Two-dimensional (2D) materials have garnered considerable attention due to their advantageous properties, including tunable bandgap, prominent carrier mobility, tunable response and absorption spectral band, and so forth. The above-mentioned properties ensure that 2D materials hold great promise for various high-performance infrared (IR) applications, such as night vision, remote sensing, surveillance, target acquisition, optical communication, etc. Thus, it is of great significance to acquire better insight into IR applications based on 2D materials. In this review, we summarize the recent progress of 2D materials in IR light emission device applications. First, we introduce the background and motivation of the review, then the 2D materials suitable for IR light emission are presented, followed by a comprehensive review of 2D-material-based spontaneous emission and laser applications. Finally, further development directions and challenges are summarized. We believe that milestone investigations of 2D-material-based IR light emission applications will emerge soon, which are beneficial for 2D-material-based nano-device commercialization.

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Modeling background response and applications for mid-infrared remote sensing camera

Cited by 6 publications

References 17 publications

Calibration Method for Airborne Infrared Optical Systems in a Non-Thermal Equilibrium State

Calibration Method for Airborne Infrared Optical Systems in a Non-Thermal Equilibrium State

Temperature-Automated Calibration Methods for a Large-Area Blackbody Radiation Source

Infrared Light Emission Devices Based on Two-Dimensional Materials

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