Abstract: Gas leakage monitoring systems and methods are provided, which use infrared camera(s) configured to capture images and to detect gas leakage at specified detection locations (SDLs) captured thereby, sniffer(s) configured to quantify the gas leakage at specified measurement points, and processing unit(s) in communication with the sniffer(s) and the camera(s), which are configured to associate and display sniffer point measurements within captured image(s) or video of the corresponding SDLs. The systems and methods generate a documentation of gas leakage measurements in association with images of the sniffers' positions during the measurements, e.g., measurement data being displayed on the image(s) of the sniffer(s) and provide additional combined analysis of images and measurements.

Abstract: System and method of quantifying a gas leak in a specified field of view are disclosed. The system may comprise a cooled detector and two interchangeable band-pass non-cooled filters. A first non-cooled band-pass filter transmits electromagnetic radiation in a first spectral band that coincides with a non-transparent leaking gas spectral band. A second non-cooled band-pass filter transmits only electromagnetic radiation in a second spectral band which coincides with a transparent leaking gas spectral band. The system may comprise a quantification unit arranged to process the images generated by the cooled detector to thereby determine, based on the images thereof, a flowrate of the leaking gas in the specified field of view. The system may comprise a detection unit arranged to determine, based on alternately generated multiple first spectral band images and multiple second spectral band images, a gas leak in the specified field of view.

Abstract: System and method of quantifying a gas leak in a specified field of view are disclosed. The system may comprise a cooled detector and two interchangeable band-pass non-cooled filters. A first non-cooled band-pass filter transmits electromagnetic radiation in a first spectral band that coincides with a non-transparent leaking gas spectral band. A second non-cooled band-pass filter transmits only electromagnetic radiation in a second spectral band which coincides with a transparent leaking gas spectral band. The system may comprise a quantification unit arranged to process the images generated by the cooled detector to thereby determine, based on the images thereof, a flowrate of the leaking gas in the specified field of view. The system may comprise a detection unit arranged to determine, based on alternately generated multiple first spectral band images and multiple second spectral band images, a gas leak in the specified field of view.

Abstract: Gas leakage monitoring systems and methods are provided, which use infrared camera(s) configured to capture images and to detect gas leakage at specified detection locations (SDLs) captured thereby, sniffer(s) configured to quantify the gas leakage at specified measurement points, and processing unit(s) in communication with the sniffer(s) and the camera(s), which are configured to associate and display sniffer point measurements within captured image(s) or video of the corresponding SDLs. The systems and methods generate a documentation of gas leakage measurements in association with images of the sniffers' positions during the measurements, e.g., measurement data being displayed on the image(s) of the sniffer(s) and provide additional combined analysis of images and measurements.

Abstract: A system and method for contactless handprint capture is disclosed that includes an image capture device to capture handprint images of a subject hand at each of a plurality of different focal distances, with the image capture device including an imaging camera and an electro-optics arrangement having a plurality of light modulating elements and polarization sensitive optical elements having differing optical path lengths based on polarization states. A control system is coupled to the image capture device to cause the device to capture the handprint images at each of the different focal distances, with each handprint image having a depth-of-focus that overlaps with a depth-of-focus of handprint images at adjacent focal distances such that redundant handprint image data is captured. The control system registers each handprint image with positional data and creates a composite handprint image from the handprint images captured at the different focal distances.

Abstract: A system and method for contactless multi-fingerprint collection is disclosed. The contactless multi-fingerprint collection system includes an imaging volume, a user interface configured to provide feedback to the subject regarding a proximity of a hand to a desired imaging location within the imaging volume, and at least one image capture device to capture images of each of the plurality of fingerprints at each of at least two different depths from the fingerprints. The contactless multi-fingerprint collection system also includes a processor coupled to the at least one image capture device that is programmed to generate a composite image and a contour map of each of the plurality of fingerprints from the images captured at the at least two different depths and generate a two-dimensional rolled equivalent image of each of the plurality of fingerprints from the composite image and the contour map.

Abstract: An optical system configured to visually inspect a target having a variable position with respect to the optical system is provided. The optical system includes a polarizer configured to convert an incident light reflected or diffused from the target into linearly polarized light; a light modulating element configured to modulate a polarization state of the linearly polarized light in response to control signals; and a lens group comprising at least one birefringent element, the birefringent element configured to refract or reflect the modulated linearly polarized light with a first polarization state under a first refraction index to enable inspection of the target at a first object position, and the birefringent element further configured to refract or reflect the modulated linearly polarized light with a second polarization state under a second refraction index to enable inspection of the target at a second object position.

Abstract: A multi-resolution lens system includes a relay lens configured to be directed toward a field-of-view (FOV) and receive a first plurality of image photons emanating from the FOV, a high-resolution lens positioned to receive a second plurality of image photons from the FOV and to pass the second plurality of image photons toward the relay lens, and a shutter device positioned to receive over an area thereof the image photons of the FOV that pass through the relay lens, and simultaneously receive overlaid on a portion of the area thereof the image photons from the portion of the FOV that pass through the high-resolution lens and toward the relay lens.

Abstract: A system and method for contactless handprint capture is disclosed that includes an image capture device to capture handprint images of a subject hand at each of a plurality of different focal distances, with the image capture device including an imaging camera and an electro-optics arrangement having a plurality of light modulating elements and polarization sensitive optical elements having differing optical path lengths based on polarization states. A control system is coupled to the image capture device to cause the device to capture the handprint images at each of the different focal distances, with each handprint image having a depth-of-focus that overlaps with a depth-of-focus of handprint images at adjacent focal distances such that redundant handprint image data is captured. The control system registers each handprint image with positional data and creates a composite handprint image from the handprint images captured at the different focal distances.

Abstract: An image capture device includes an electro-optics arrangement having an arrangement of polarizers, polarization sensitive optical elements, and polarization modulating elements. First and second polarization sensitive optical elements are provided having an edge displaced relative to a plane normal to an optical axis of the electro-optics arrangement. A control system coupled to the electro-optics arrangement controls the application of voltages to the polarization modulating elements to control the polarization rotation of the light input to the polarization sensitive optical elements, such that the optical path length of the polarization sensitive optical elements is changed to provide for capture of the object images at each of the different focal planes. The first and second polarization sensitive optical elements generate lateral image shifts between respective object images captured at the different focal planes responsive to the polarization rotation of the light input thereto.

Abstract: Disclosed are method and apparatus for forming multiple images of an object comprising a plurality of depth segments. An optical system comprises an infinity optical subsystem and a multi-image optical subsystem. The infinity optical subsystem is configured to receive light from the object and form a first image focussed at infinity. A multi-image optical subsystem is configured to receive the first image and form multiple images via multiple focussing lenses. Each multiple image can correspond to a different depth segment. A portion of the light from the first image can also be filtered before entering a focussing lens. Multiple images under different filtering conditions, corresponding to different depth segments or to the same depth segment, can be formed.

Abstract: An image capture device includes an electro-optics arrangement having an arrangement of polarizers, polarization sensitive optical elements, and polarization modulating elements. First and second polarization sensitive optical elements are provided having an edge displaced relative to a plane normal to an optical axis of the electro-optics arrangement. A control system coupled to the electro-optics arrangement controls the application of voltages to the polarization modulating elements to control the polarization rotation of the light input to the polarization sensitive optical elements, such that the optical path length of the polarization sensitive optical elements is changed to provide for capture of the object images at each of the different focal planes. The first and second polarization sensitive optical elements generate lateral image shifts between respective object images captured at the different focal planes responsive to the polarization rotation of the light input thereto.

Abstract: A system and method for contactless handprint capture is disclosed that includes an image capture device to capture whole handprint images of a subject hand at each of a plurality of different focal distances, with the image capture device including an imaging camera and an electro-optics arrangement having a plurality of light modulating elements and polarization sensitive optical elements having differing optical path lengths based on polarization states. A control system is coupled to the image capture device to cause the device to capture the handprint images at each of the different focal distances, with each handprint image having a depth-of-focus that overlaps with a depth-of-focus of handprint images at adjacent focal distances such that redundant handprint image data is captured. The control system registers each handprint image with positional data and creates a composite handprint image from the handprint images captured at the different focal distances.

Abstract: An imaging system includes a positionable device configured to axially shift an image plane, wherein the image plane is generated from photons emanating from an object and passing through a lens, a detector plane positioned to receive the photons of the object that pass through the lens, and a computer programmed to characterize the lens as a mathematical function, acquire two or more elemental images of the object with the image plane of each elemental image at different axial positions with respect to the detector plane, determine a focused distance of the object from the lens, based on the characterization of the lens and based on the two or more elemental images acquired, and generate a depth map of the object based on the determined distance.

Abstract: A system and method for contactless multi-fingerprint collection is disclosed. The contactless multi-fingerprint collection system includes an imaging volume, a user interface configured to provide feedback to the subject regarding a proximity of a hand to a desired imaging location within the imaging volume, and at least one image capture device to capture images of each of the plurality of fingerprints at each of at least two different depths from the fingerprints. The contactless multi-fingerprint collection system also includes a processor coupled to the at least one image capture device that is programmed to generate a composite image and a contour map of each of the plurality of fingerprints from the images captured at the at least two different depths and generate a two-dimensional rolled equivalent image of each of the plurality of fingerprints from the composite image and the contour map.

Abstract: A system and method for contactless multi-fingerprint collection is disclosed. The contactless multi-fingerprint collection system includes an imaging volume, a user interface configured to provide feedback to the subject regarding a proximity of a hand to a desired imaging location within the imaging volume, and at least one image capture device to capture images of each of the plurality of fingerprints at each of at least two different depths from the fingerprints. The contactless multi-fingerprint collection system also includes a processor coupled to the at least one image capture device that is programmed to generate a composite image and a contour map of each of the plurality of fingerprints from the images captured at the at least two different depths and generate a two-dimensional rolled equivalent image of each of the plurality of fingerprints from the composite image and the contour map.

Abstract: A multi-resolution lens system includes a relay lens configured to be directed toward a field-of-view (FOV) and receive a first plurality of image photons emanating from the FOV, a high-resolution lens positioned to receive a second plurality of image photons from the FOV and to pass the second plurality of image photons toward the relay lens, and a shutter device positioned to receive over an area thereof the image photons of the FOV that pass through the relay lens, and simultaneously receive overlaid on a portion of the area thereof the image photons from the portion of the FOV that pass through the high-resolution lens and toward the relay lens.

Abstract: An optical system configured to visually inspect a target having a variable position with respect to the optical system is provided. The optical system includes a polarizer configured to convert an incident light reflected or diffused from the target into linearly polarized light; a light modulating element configured to modulate a polarization state of the linearly polarized light in response to control signals; and a lens group comprising at least one birefringent element, the birefringent element configured to refract or reflect the modulated linearly polarized light with a first polarization state under a first refraction index to enable inspection of the target at a first object position, and the birefringent element further configured to refract or reflect the modulated linearly polarized light with a second polarization state under a second refraction index to enable inspection of the target at a second object position.

Abstract: Imaging systems and methods for generating images of a sample wherein the system comprises an illumination source for illuminating the sample; an image viewing subsystem for capturing images from the sample; one or more liquid crystal panels and one or more birefringent elements, which are positioned between the sample and the image viewing subsystem, so that the images from the sample pass through the liquid crystal panels and the birefringent elements before reaching the image viewing subsystem; a device that changes one or more polarization states of the liquid crystal panels; and a controller that is configured to cause the device to change the polarization states of the liquid crystal panels.

Abstract: A multi-resolution lens system includes a relay lens configured to be directed toward a field-of-view (FOV) and receive a first plurality of image photons emanating from the FOV, a high-resolution lens positioned to receive a second plurality of image photons from the FOV and to pass the second plurality of image photons toward the relay lens, and a shutter device positioned to receive over an area thereof the image photons of the FOV that pass through the relay lens, and simultaneously receive overlaid on a portion of the area thereof the image photons from the portion of the FOV that pass through the high-resolution lens and toward the relay lens.