Abstract: Various techniques are provided for increasing contrast between gas features and other features in a scene. In one example, a method includes receiving a captured image frame comprising a plurality of pixels having a first range of associated pixel values. The method also includes receiving a selection of a subset of the pixels, wherein the subset comprises a gas feature and a scene feature. The method also includes determining a span associated with the pixels of the subset having a second range of associated pixel values smaller than the first range. The method also includes scaling the captured image frame to provide an adjusted image frame limited to the second range of pixel values associated with the span to increase contrast between the gas feature and the scene feature. The method also includes displaying the adjusted image frame. Additional methods and systems are also provided.

Abstract: Various techniques are provided to reduce noise in captured images using frame-to-frame shifts of scene information. In one example, a system includes an imager and a processor. The imager is configured to capture a plurality of image frames comprising scene information. The image frames exhibit frame-to-frame shifts of the scene information caused by a motion pattern associated with the imager. The processor is configured to distinguish noise in the image frames from the frame-to-frame shifts of the scene information. The processor is also configured to update non-uniformity correction terms to reduce the noise. Additional systems and methods are also provided.

Abstract: Various techniques are provided for increasing contrast of gas features in a scene. In one example, a method includes receiving a captured infrared image comprising a gas feature and a scene feature. The captured infrared image comprises a first range of pixel values associated with a first temperature range of the gas feature and the scene feature. The method also includes applying a spatial filter to the captured infrared image to provide a spatially filtered infrared image retaining the gas feature and removing the scene feature. The spatially filtered infrared image comprises a second range of pixel values associated with a second temperature range of the gas feature without the additional scene feature to exhibit increased gas contrast over the captured infrared image. Additional methods and systems are also provided.

Abstract: Techniques for facilitating testing analytics of imaging systems and methods using molds are provided. In one example, a system includes a mold temperature controller configured to apply a thermal signature to a mold of a target. The system further includes a focal plane array configured to capture an infrared image of the mold. The system further includes an image analytics device configured to determine thermal analytics associated with the mold based on the infrared image. Related devices and methods are also provided.

Abstract: Techniques are disclosed for facilitating providing of sensor capability in devices using device attachments. In one example, a sensor device includes an attachment body configured to be disposed along a side of a user device when the sensor device is coupled to the user device. The sensor device further includes an actuator configured to selectively apply a force. The sensor device further includes a connector block coupled to the actuator and configured to selectively extend from or retract into the attachment body in response to the force. The sensor device further includes a connector configured to couple to a connector port of the user device and provide data communication between the sensor device and the user device. The connector is at least partially disposed in the connector block. Related systems and devices are also provided.

Abstract: An IR imaging device includes an optical element receiving infrared radiation from a scene, a filter blocking IR radiation outside of a particular range of wavelengths, an array of sensor pixels to capture an image of the scene based on infrared radiation received through the optical element and filter, the array of sensor pixels comprising a first array of sensor pixels to image gas in within a first spectral bandwidth, and a second array of sensor pixel to sense IR radiation in a second spectral bandwidth where gas is not detected, a read-out integrated circuit (ROIC) and logic circuitry to generate a first image sensed by the first array and a second image sensed by the second array, and gas detection logic to detect the presence of gas in the first image.

Abstract: Various techniques are disclosed to provide a quantification of a gas leak based on an image of a gas plume generated by the leak. An image location that corresponds to the origin of the gas leak is determined. An exit border is disposed on the image based on the image location that corresponds to the origin of the gas leak. A gas leak rate is computed based at least on gas concentration values of the pixels that overlap the exit border.

Abstract: Various techniques are provided for interfacing motorized and non-motorized optical assemblies with imaging systems. In one example, a method includes receiving an optical assembly at a lens mount assembly of an imaging system. The method also includes receiving a rotation of the optical assembly from a first position to a second position to secure the optical assembly to the lens mount assembly. The rotation causes one or more electrical connections of the lens mount assembly to translate toward and engage with one or more complementary electrical connections of the optical assembly to couple an electrical component of the optical assembly with the imaging system. Additional methods and systems are also provided.

Abstract: Systems and methods disclosed herein provide for detecting gas by: illuminating, with a controllable illuminator system, a scene with light including radiation within the infrared (IR) wavelength range; controlling the illuminator system to emit light at a first wavelength corresponding to a first absorption level of a gas and at a second wavelength corresponding to a second absorption level of a gas, such that an equal amount of radiant energy over a time period is emitted onto the scene for each of said first and second wavelengths; and capturing a first IR image of the scene being illuminated with light at said first wavelength and a second IR image of the scene illuminated with light at said second wavelength, and comparing said first and second IR images to determine whether a characteristic for at least one specific gas is represented in said first and/or second IR images.

Abstract: The present disclosure relates to combination of images. A method according to an embodiment comprises: receiving a visual image and an infrared (IR) image of a scene and for a portion of said IR image extracting high spatial frequency content from a corresponding portion of said visual image. The method according to the embodiment further comprises combining said extracted high spatial frequency content from said portion of the visual image with said portion of the IR image, to generate a combined image, wherein the contrast and/or resolution in the portion of the IR image is increased compared to the contrast and/or resolution of said received IR image.

Abstract: Techniques are disclosed for facilitating image relay for wearable devices with thermal imaging devices attached thereto. In one example, a system includes an attachment configured to releasably couple to an exterior surface of a wearable apparatus. The attachment includes an infrared sensor assembly configured to capture a thermal image of a scene. The attachment further includes a display component configured to provide data indicative of the thermal image. The system further includes an optical relay component configured to couple to an interior surface of the wearable apparatus. The optical relay component is further configured to receive the data from the display component and relay the data within the wearable apparatus to facilitate presenting the data for viewing by a user while wearing the wearable apparatus. Related devices and methods are also provided.

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.