Techniques are disclosed for providing vehicular radiometric calibration systems and methods. In one example, a method includes capturing, by an array of infrared sensors mounted on a vehicle, a thermal image of a scene during navigation of the vehicle and/or while the vehicle is stationary. The thermal image comprises a plurality of pixel values. Each infrared sensor of the array is associated with a respective one of the plurality of pixel values. The method further includes determining temperature data associated with a portion of the scene, where the portion is associated with a subset of the plurality of pixel values. The method further includes generating a correction value based on the thermal image and the temperature data. Related systems, vehicles, and devices are also provided.

Techniques are disclosed for providing vehicular radiometric calibration systems and methods. In one example, a method includes capturing, by an array of infrared sensors mounted on a vehicle, a thermal image of a scene during navigation of the vehicle and/or while the vehicle is stationary. The thermal image comprises a plurality of pixel values. Each infrared sensor of the array is associated with a respective one of the plurality of pixel values. The method further includes determining temperature data associated with a portion of the scene, where the portion is associated with a subset of the plurality of pixel values. The method further includes generating a correction value based on the thermal image and the temperature data. Related systems, vehicles, and devices are also provided.

Embodiments of the present application disclose an infrared temperature measurement method, apparatus, device, and storage medium, which relate to the field of image processing. The method comprises: determining a measurement temperature of a to-be-measured target based on a grayscale image captured to obtain a first measurement temperature; determining key point coordinates of the target based on a target image; determining a first distance based on the key point coordinates and configuration information of an infrared temperature measurement device, the first distance is a distance between the target and the infrared temperature measurement device; determining an actual temperature of the target based on the first measurement temperature and the first distance. In this way, the target image ranging and grayscale image temperature measurement can be combined, which not only reduces the influence of distance on the measurement temperature, but also avoids the problem of inaccurate measurement temperature when the distance does not meet the requirements, thus improving temperature measuring precision and temperature measuring efficiency.

Embodiments of the present application disclose an infrared temperature measurement method, apparatus, device, and storage medium, which relate to the field of image processing. The method comprises: determining a measurement temperature of a to-be-measured target based on a grayscale image captured to obtain a first measurement temperature; determining key point coordinates of the target based on a target image; determining a first distance based on the key point coordinates and configuration information of an infrared temperature measurement device, the first distance is a distance between the target and the infrared temperature measurement device; determining an actual temperature of the target based on the first measurement temperature and the first distance. In this way, the target image ranging and grayscale image temperature measurement can be combined, which not only reduces the influence of distance on the measurement temperature, but also avoids the problem of inaccurate measurement temperature when the distance does not meet the requirements, thus improving temperature measuring precision and temperature measuring efficiency.

A device including a sensor is disclosed. In one embodiment, the sensor includes a thermal infrared sensor or a sensor based on CMOS-SOI-MEMS technology (also referred to as “TMOS”). The sensor is capable of performing at least two functions at the same time. The first is remote temperature measurement and the second is presence detection. The sensor passively collects infrared information and a microprocessor coupled to the sensor determines the temperature as well as presence.

Systems, methods, and computer program products for thermal contrast determinations are provided. An example imaging system includes a first infrared (IR) imaging device that generates first IR image data of a field of view of the first IR imaging device and a computing device connected with the first IR imaging device. The computing device receives probe temperature data from a temperature probe indicative of an external environment of the imaging system and receives the first IR image data from the first IR imaging device. The computing device determines background temperature data based upon the first IR image data, determines gas temperature data based upon the probe temperature data, and determines a thermal contrast for each pixel based upon a comparison between the background temperature data and the gas temperature data. The computing device further determines a detection limit for each pixel as a function of thermal contrast.

A technique for automated temperature monitoring relies on subject recognition in combination with contactless measurement of subject temperature at one or more measurement stations, with corresponding use of trend analysis. A multiplicity of advantages flow from the use of subject recognition and corresponding trend analysis, including more reliable detection of anomalous temperatures relative to trendlines determined for individual recognized subjects, with possible compensation for group trends, local environmental factors, variability in measuring equipment, etc.

Example implementations include a method, apparatus and computer-readable medium for determining a set of temperature readings of a person attempting to proceed beyond an area. The implementations further include detecting the person entering the area and detecting a facial area of the person. The implementations further include sending location information of the facial area to a sensing device. The implementations further include generating a thermal image of the person and determining a first set of temperature readings. The implementations further include determining a first set of temperature differences comprising one or more temperature differences between the temperature readings in the first set. The implementations further include determining whether one or more of the temperature differences in the first set does not satisfy a threshold and generating a notification in response to the determination. Additionally, the implementations include transmitting the notification to one or more output devices.

The present invention relates to an externally mounted calibration device and a temperature measurement system using the same. The temperature measurement system calibrates the temperature of the thermal camera using an externally mounted temperature calibration device that is mounted on one side of the outside of the thermal camera unit and includes a temperature measurement substrate with a temperature sensor. The temperature measurement substrate of the externally mounted temperature calibration device is captured simultaneously with the subject to be measured on the screen of the thermal camera, and using the temperature of the temperature measurement substrate measured by the temperature sensor and the temperature of the temperature measurement substrate measured by the thermal camera, the temperature of the subject to be measured by the thermal camera is calibrated, thereby ensuring that the thermal camera always maintains a constant temperature measurement result regardless of the environmental temperature when used.

A thermal image-based temperature measurement calibration method applicable to a thermal image device is provided. The method includes a capturing stage, a processing stage and a calibration stage. During the capturing stage, the thermal image device captures a monitored environment to obtain a measured thermal image. During the processing stage, a processor processes on the measured thermal image to obtain a target information, wherein the target information corresponds to a target in the monitored environment, and the target information includes a target image block and a target measured temperature corresponding to the target image block. During the calibration stage, the processor obtains a distance compensation value according to a pixel number of the target image block, and the processor performs a calibration operation to the target measured temperature at least according to the distance compensation value to obtain a calibrated temperature value corresponding to the target.