Abstract: Improved techniques for quantification of detected gases are provided. In one example, a method includes receiving infrared radiation from a scene at a sensor array comprising first and second sets of infrared sensors associated with first and second wavelength ranges of the infrared radiation, respectively. The method also includes capturing first and second images by the first and second sets of infrared sensors, respectively. The method also includes detecting a background object in the first image. The method also includes tracking the background object to identify the background object in the second image. The method also includes updating a radiometric scene map with first and second radiometric values associated with the first and second images and correlated to a location of the background object in the scene. The method also includes performing gas quantification using the radiometric scene map. Additional systems and methods are also provided.

Abstract: Improved techniques for thermal imaging and gas detection are provided. In one example, a system includes a first set of filters configured to pass first filtered infrared radiation comprising a first range of thermal wavelengths associated with a background portion of a scene. The system also includes a second set of filters configured to pass second filtered infrared radiation comprising a second range of thermal wavelengths associated with a gas present in the scene. The first and second ranges are independent of each other. The system also includes a sensor array comprising adjacent infrared sensors configured to separately receive the first and second filtered infrared radiation to capture first and second thermal images respectively corresponding to the background portion and the gas. Additional systems and methods are also provided.

Abstract: Various techniques are provided for removing turbulent gases from thermal images of high temperature scenes and for detecting gas leaks. In one example, a method includes receiving a plurality of thermal images captured of a scene comprising a furnace tube and combustion gas exhibiting higher temperatures than the furnace tube. Each thermal image comprises a plurality of pixels each having an associated pixel value. The method also includes applying a digital filter to the thermal images to generate a processed thermal image. Each pixel of the processed thermal image has an associated minimum pixel value determined from corresponding pixels of the thermal images to remove the higher temperature combustion gas from the processed thermal image. Additional methods and systems are also provided.

Abstract: Various techniques are disclosed for the detection of discrepancies between imaged maritime vessels and received identification information. In one example, a method includes capturing an image of a maritime vessel and processing the image to extract information associated with the vessel. The method also includes receiving automatic identification system (AIS) data, comparing the extracted information to the AIS data, and generating an alarm in response to a discrepancy detected by the comparing. Additional methods, systems, and devices are also provided.

Abstract: Systems and methods disclosed herein, in accordance with one or more embodiments provide for imaging gas in a scene, the scene having a background and a possible occurrence of gas. In one embodiment, a method and a system adapted to perform the method includes: controlling a thermal imaging system to capture a gas IR image representing the temperature of a gas and a background IR image representing the temperature of a background based on a predetermined absorption spectrum of the gas, on an estimated gas temperature and on an estimated background temperature; and generating a gas-absorption-path-length image, representing the length of the path of radiation from the background through the gas, based on the gas image and the background IR image. The system and method may include generating a gas visualization image based on the gas-absorption-path-length image to display an output image visualizing a gas occurrence in the scene.

Abstract: An ambient temperature calibration process includes, in accordance with an embodiment, determining an ambient temperature calibration value for a global external resistance associated with a read out integrated circuit (ROIC) of an image capture component comprising a sensor array comprising a focal plane array of microbolometers arranged on the ROIC; determining an ambient temperature calibration value for a sensor integration time associated with the ROIC; and determining an ambient temperature calibration mapping for an offset mapping associated with the ROIC.

Abstract: Improved techniques for infrared imaging and gas detection are provided. In one example, a system includes a sensor array configured to receive infrared radiation from a scene comprising a background portion and a gas. The sensor array includes a first set of infrared sensors configured with a first spectral response corresponding to a first wavelength range of the infrared radiation associated with the background portion. The sensor array also includes a second set of infrared sensors configured with a second spectral response corresponding to a second wavelength range of the infrared radiation associated with the gas. The system also includes a read out integrated circuit (ROIC) configured to provide pixel values for first and second images captured by the first and second sets of infrared sensors, respectively, in response to the received infrared radiation. Additional systems and methods are also provided.

Abstract: A thermal imaging apparatus and a method of improving image quality in a thermal image video sequence imaging a scene, determining one or more of an image detail level, a degree of image motion and/or an image signal level of one or more captured thermal images; determining, based on one or more of the image detail level, the degree of image motion and/or the image signal level, an adapted frame rate for the capturing of one or more subsequent thermal images for the video sequence; capturing one or more subsequent thermal images at the adapted frame rate to improve the image quality in the video sequence.

Abstract: A method for facilitating parallax mitigation includes capturing a first image of a scene using a first imaging device, where the first imaging device is associated with a first optical axis. The method further includes tilting a second optical axis associated with a second imaging device to obtain a tilted optical axis. The method further includes capturing a second image of the scene using the second imaging device and the tilted optical axis.

Abstract: Various techniques are disclosed to generate a contrast-enhanced combined image based on a thermal image and high spatial frequency content extracted from a visual light image, said images depicting the same scene. In one example, a method comprises: determining a blending measure indicating the quality of at least one of said images; combining luminance components of pixel values comprised in the thermal image and of pixel values representing high spatial frequency content comprised in the visual light image based on the blending measure; and generating a contrast-enhanced combined image based on the thermal image and the combined luminance components.

Abstract: The invention relates to a method and an apparatus for processing information in images pictured by infrared cameras comprising the steps of receiving radiation from at least one object in an area; extracting radiometric information from the radiation; transforming the radiometric information into at least one digital image file; storing the at least one digital image file and at least one digital function file comprising an executable code characterised by the steps of merging the executable code of the at least one digital function file into or with the at least one digital image file, thereby generating an executable digital image file, wherein the executable code comprises at least one instruction and is written in a programming language independent of system architecture. The invention further relates to a computer program product.

Abstract: Systems and methods disclosed herein, in accordance with one or more embodiments provide for imaging gas in a scene, the scene having a background and a possible occurrence of gas. In one embodiment, a method and a system adapted to perform the method includes: controlling a thermal imaging system to capture a gas IR image representing the temperature of a gas and a background IR image representing the temperature of a background based on a predetermined absorption spectrum of the gas, on an estimated gas temperature and on an estimated background temperature; and generating a gas-absorption-path-length image, representing the length of the path of radiation from the background through the gas, based on the gas image and the background IR image. The system and method may include generating a gas visualization image based on the gas-absorption-path-length image to display an output image visualizing a gas occurrence in the scene.

Abstract: Various techniques are provided to generate enhanced visual representations of captured infrared (IR) data values. For example, various methods, systems, devices, and machine-readable mediums are provided that may be used to map color and/or grayscale values to temperature values. Such mapping permits a user to intuitively interpret the temperatures associated with the IR data values. The temperatures may be presented as a visual representation of the captured IR data values having an enhanced contrast.