Flexible 640 x 480 pixel infrared camera module for fast prototyping

Bergeron, Alain; Noc, Loïc Le; Tremblay, Bruno; Lagacé, François; Mercier, Luc; Duchesne, François; Marchese, Linda; Lambert, Julie; Jacob, Michel; Morissette, Martin; Jerominek, Hubert

doi:10.1117/12.830479

Cited by 16 publications

(11 citation statements)

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“…The INO commercial electronics assembly [12] is not designed to fulfill spatial requirements so there are substantial differences between the INO camera and the FEEP. However, the INO camera will be used in the EUSO-balloon project, a pathfinder to test the validity of concepts and technical choices made for the JEM-EUSO space mission.…”

Section: Laboratory Facilitiesmentioning

confidence: 99%

Microbolometer characterization with the electronics prototype of the IRCAM for the JEM-EUSO mission

et al. 2014

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JEM-EUSO is a space observatory that will be attached to the Japanese module of the International Space Station (ISS) to observe the UV photon tracks produced by Ultra High Energy Cosmic Rays (UHECR) interacting with atmospheric nuclei. The observatory comprises an Atmospheric Monitoring System (AMS) to gather data about the status of the atmosphere, including an infrared camera (IRCAM) for cloud coverage and cloud top height detection. This paper describes the design and characterization tests of IRCAM, which is the responsibility of the Spanish JEM-EUSO Consortium. The core of IRCAM is a 640x480 microbolometer array, the ULIS 04171, sensitive to radiation in the range 7 to 14 microns.The microbolometer array has been tested using the Front End Electronics Prototype (FEEP). This custom designed electronics corresponds to the Breadboard Model, a design built to verify the camera requirements in the laboratory. The FEEP controls the configuration of the microbolometer, digitizes the detector output, sends data to the Instrument Control Unit (ICU), and controls the microbolometer temperature to a 10 mK stability. Furthermore, the FEEP allows IRCAM to preprocess images by the addition of a powerful FPGA. This prototype has been characterized in the laboratories of Instituto de Astrofisica de Canarias (IAC). Main results, including detector response as a function of the scene temperature, NETD and Non-Uniformity Correction (NUC) are shown. Results about thermal resolution meet the system requirements with a NETD lower than 1K including the narrow band filters which allow us to retrieve the clouds temperature using stereovision algorithms.

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Section: Laboratory Facilitiesmentioning

confidence: 99%

Microbolometer characterization with the electronics prototype of the IRCAM for the JEM-EUSO mission

et al. 2014

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“…The thermal camera used in our experimental setup is the IRXCAM-640 camera core [5] from the National Optics Institute (INO), shown on the right side in Fig. 7.…”

Section: Implementation and Experimental Settingsmentioning

confidence: 99%

“…Then, a Sobel operator [10] with a 3 × 3 kernel and a first horizontal and first vertical derivative order is performed (line 3). Image I is multiplied by the matrix given by (4) and (5). The result of the Sobel operator is given by (6).…”

Section: B Rr Monitoringmentioning

confidence: 99%

Contact-Free Respiration Rate Monitoring Using a Pan–Tilt Thermal Camera for Stationary Bike Telerehabilitation Sessions

Chauvin

Hamel

Brière

et al. 2016

IEEE Systems Journal

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One typical remote consultation envisioned for inhome telerehabilitation involves having the patient exercise on a stationary bike. Making sure that the patient is breathing well while pedaling is of primary concern for the remote clinician. One key requirement for in-home telerehabilitation is to make the system as simple as possible for the patients, avoiding, for instance, to have them wear sensors and devices. This paper presents a contactfree respiration rate monitoring system measuring temperature variations between inspired and expired air in the mouth-nose region using thermal imaging. The thermal camera is installed on a pan-tilt unit and coupled to a tracking algorithm, allowing the system to keep track of the mouth-nose region as the patient exercises. Results demonstrate that the system works in real time even when the patient moves or rotates its head while exercising. Recommendations are also made to minimize limitations of the system, such as the presence of people in the background or when the patient is talking, for its eventual use in in-home telerehabilitation sessions.

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“…An INO IRXCAM-640 scientific-class thermal camera based on a microbolometer was used for the tests. This camera was manufactured by the Canadian corporation INO (National Optics Institute) and based on a 640 × 480 pixels ULIS uncooled microbolometer model ULIS-04-17-1 [30]. The sensor is considered uncooled because no cryogenic system is used to reduce its temperature.…”

Section: Reference High-end Thermal Cameramentioning

confidence: 99%

Performance Assessment of Low-Cost Thermal Cameras for Medical Applications

Villa

Arteaga-Marrero

Ruiz-Alzola

2020

Sensors

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Thermal imaging is a promising technology in the medical field. Recent developments in low-cost infrared (IR) sensors, compatible with smartphones, provide competitive advantages for home-monitoring applications. However, these sensors present reduced capabilities compared to more expensive high-end devices. In this work, the characterization of thermal cameras is described and carried out. This characterization includes non-uniformity (NU) effects and correction as well as the thermal cameras’ dependence on room temperature, noise-equivalent temperature difference (NETD), and response curve stability with temperature. Results show that low-cost thermal cameras offer good performance, especially when used in temperature-controlled environments, providing evidence of the suitability of such sensors for medical applications, particularly in the assessment of diabetic foot ulcers on which we focused this study.

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Flexible 640 x 480 pixel infrared camera module for fast prototyping

Cited by 16 publications

References 0 publications

Microbolometer characterization with the electronics prototype of the IRCAM for the JEM-EUSO mission

Microbolometer characterization with the electronics prototype of the IRCAM for the JEM-EUSO mission

Contact-Free Respiration Rate Monitoring Using a Pan–Tilt Thermal Camera for Stationary Bike Telerehabilitation Sessions

Performance Assessment of Low-Cost Thermal Cameras for Medical Applications

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