Determining detection, recognition, and identification ranges of thermal cameras on the basis of laboratory measurements and TTP model

Bareła, Jaroslaw; Kastek, M.; Firmanty, K.; Trzaskawka, P.; Dulski, R.

doi:10.1117/12.918390

Cited by 6 publications

(5 citation statements)

References 2 publications

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“…Also, with higher camera resolution, larger distances can be achieved. For example, with a smaller resolution camera, object detection was found successful with 80% probability up to at about 1.4 km, recognition at up to 0.5 km and identification up to about 200 m, while with higher resolution camera, with the same rate of success, identification was possible up to 0.7 km, recognition up to 1.2 km and detection up to about 2.2 km [46].…”

Section: A Thermal Camera Characteristic For Surveillance Applicationsmentioning

confidence: 98%

“…Recording distance and the type and quality of the thermal camera and its thermal imaging sensor are significant for human detection because they directly affect the image or video resolution and the size of the human figure in the recording. The impact of sensor resolution, recording distance, and image quality on object detection, recognition, and identification were studied in [46], where experiments based on TTP (Targeting Task Performance) were conducted to determine the effective distance for each of the tasks.…”

Section: A Thermal Camera Characteristic For Surveillance Applicationsmentioning

confidence: 99%

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Thermal Object Detection in Difficult Weather Conditions Using YOLO

2020

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Section: A Thermal Camera Characteristic For Surveillance Applicationsmentioning

confidence: 98%

Section: A Thermal Camera Characteristic For Surveillance Applicationsmentioning

confidence: 99%

Thermal Object Detection in Difficult Weather Conditions Using YOLO

2020

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“…The third term refers to the target area and is based on the standardized North Atlantic Treaty Organization (NATO) target specifications [63][64][65][66][67]. This standard target serves as a reference for defining the laser crosssection of the target, which would otherwise be challenging to determine due to variations between tanks and different tank paintings.…”

Section: Electro-optical System Designmentioning

confidence: 99%

Laser seeker design with multi-focal diffractive lens

Ünal

2023

Eng. Res. Express

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Diffractive optical elements are increasingly favoured due to their ability to provide numerous design freedoms by adjusting the Fresnel regions. The design freedoms make it possible to meet multiple system functions in electro-optical systems simultaneously by using a single optical element. This research introduces a novel laser seeker design with a multi-focal diffractive lens that enhances a laser seeker’s measurement sensitivity and linear measurement range. The development of the multi-focal combined lens, featuring two distinct regions with unique focal lengths, aims to simultaneously fulfill two system functions within the laser seeker. The central region of the lens is intended for adjusting the linear measurement range, while the outer region is utilized to regulate the measurement sensitivity of the seeker. The numerical optical wave propagation method was employed to simulate the behaviour of the laser seeker with a multi-focal diffractive lens, and the combined diffractive lens was compared to an ideal lens in the scope of laser seeker application. The simulation results indicate that the measurement sensitivity of the seeker has been increased between 0° to ±3° angular incidence, and the linear measurement range has been increased from ±18° to ±26°. The findings of this study contribute to the advancement of multi-focal diffractive lenses, which fulfil multiple functions within an electro-optical system concurrently.

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“…(11) The sign in case of random error is irrelevant, thus the relation can be written as: (12) and finally (13) where: Th -random variable describing the T temperature difference distribution caused by a limited repeatability of human sight, Tr -random variable describing the distribution of measurement results due to limited thermal resolution of a blackbody.…”

Section: Mrtd Measurementsmentioning

confidence: 99%

Accuracy of measurements of basic parameters of observation thermal cameras

Bareła¹,

Kastek²,

Firmanty³

et al. 2016

Proceedings of the 2016 International Conference on Quantitative InfraRed Thermography

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Measurements of performance parameters of observation thermal cameras are usually conducted to check the applied design concept and the operation of implemented image-enhancing algorithms or to verify the manufacturer's claim regarding the figures of merit. In both cases there are several important conditions to be met in order to obtain reliable measurement results. One must have a measurement stand providing measurement uncertainty figures several times lower than the magnitude of measured parameter. There can be no influence of environmental conditions and the personnel conducting the test must precisely know the applicable procedures and should possess considerable experience in the measurements of thermal imaging devices. The paper presents the measurement equipment used to test the infrared imaging devices as well as measurement data analysis regarding basic camera parameters. Accuracy assessment were conducted on the basis of measurement methods and procedures implemented in Accredited Testing

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Determining detection, recognition, and identification ranges of thermal cameras on the basis of laboratory measurements and TTP model

Cited by 6 publications

References 2 publications

Thermal Object Detection in Difficult Weather Conditions Using YOLO

Thermal Object Detection in Difficult Weather Conditions Using YOLO

Laser seeker design with multi-focal diffractive lens

Accuracy of measurements of basic parameters of observation thermal cameras

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