Abstract: Systems and methods provide scene-based non-uniformity correction for infrared images, in accordance with one or more embodiments. For example in one embodiment, a method of processing infrared images of a scene captured by an infrared image sensor comprising a plurality of sensor elements includes receiving a first frame comprising a first plurality of pixel data of a first infrared image; receiving a second frame comprising a second plurality of pixel data of a second infrared image; determining frame-to-frame motion between the first frame and the second frame, wherein the frame-to-frame motion identifies portions of the first and second pixel data corresponding to identical scene coordinates captured by different sensor elements for the first and second frames; determining irradiance differences between the first and second portions of pixel data; and determining pixel offset information for scene based non-uniformity correction terms based on the irradiance differences and the frame-to-frame motion.

Abstract: A method for signal conditioning of signals from a two-dimensional image by calculating the motion of an image in relation to an image plane. Two-dimensional structures in the image are correlated between images separated in time, using Radon transforms for two or more angles in order to reduce the correlation calculations from two-dimensional correlation to correlation of two or more one-dimensional projections. The one-dimensional projections are differentiated to obtain the gradients of the projections as the basis for the correlation of images separated in time and signal conditioning. The magnitude of the gradients of the projections is ignored and the sign value of the gradients is used for a binary representation as the basis for the correlation of images separated in time.

Abstract: Systems and methods disclosed herein provide, for some embodiments, infrared cameras and target position acquisition techniques for various applications. For example, in one embodiment, a system may include a portable imaging/viewing subsystem having a target position finder and may also include a fixed mount camera subsystem having a camera and a camera positioner. A communications link may be configured to communicate a signal from the target position finder to the camera positioner. The signal may be representative of a position of a target being imaged/viewed with the portable imaging/viewing subsystem. The camera positioner may aim the camera toward the target in response to the signal. The target may, for example, be a man overboard. Thus, the system may be useful in search and rescue operations.

Abstract: One or more embodiments of the invention provide a system and method for processing an infrared image to receive infrared image data of a non-uniform scene, apply column noise filter correction to the infrared image data, and/or apply row noise filter correction to the infrared image data, and provide corrected infrared image data based on the column and/or row noise filter correction as infrared output image data.

Abstract: Systems and methods are disclosed herein to provide filtering techniques for image processing applications. For example, in accordance with an embodiment of the present invention, a Median-X filtering algorithm is disclosed that may be used for various infrared image processing applications.

Abstract: Systems and methods disclosed herein provide for various embodiments of maritime control components. For example in one embodiment, a control component, adapted to be used with a watercraft, includes a mounting feature adapted to mount the control component to a steering wheel of the watercraft, and a mode selector of the control component adapted to receive and transmit a first user input signal corresponding to a user selected mode of operation from a plurality of selectable modes of operation including a map mode, a sonar mode, a fishfinder mode, a radar mode, an autopilot pattern mode, an entertainment mode, and/or a maritime mode. The control component further includes an increase/decrease actuator adapted to receive and transmit a second user input signal corresponding to a user selection within the user selected mode of operation. Embodiments of a watercraft and a method of display control are also provided.

Abstract: An imager array may be provided as part of an imaging system. The imager array may include a plurality of sensor arrays (e.g., also referred to as lenslets or optical elements). Each sensor array may include a plurality of sensors (e.g., pixels) associated with a lens. The sensor arrays may be oriented, for example, substantially in a plane facing the same direction and configured to detect images from the same scene (e.g., target area). Such images may be processed in accordance with various techniques to provide images of electromagnetic radiation. The sensor arrays may include filters or lens coatings to selectively detect desired ranges of electromagnetic radiation. Such arrangements of sensor arrays in an imager array may be used to advantageous effect in a variety of different applications.

Abstract: Systems and methods provide scene-based non-uniformity correction for infrared images, in accordance with one or more embodiments.

Abstract: A system and method for processing an infrared image. The infrared image is processed to provide a background portion of the infrared image and a detail portion of the infrared image. The background portion and/or the detail portion is scaled to provide a level of the detail portion relative to a level of the background portion. The background portion and the detail portion are merged after the scaling to provide a processed infrared image. The processed infrared image is stored.

Abstract: A method for correction of non-uniformity in signal level in different image points in an IR-camera, based on a scene being observed during movement in time of detector elements, of a camera in which the detector elements are arranged and/or of the scene, with deviating output signals for the same energy in the scene measured by different detector elements being corrected for image interference so that they provide essentially the same output signal. Micro-mechanical gyros are introduced that measure the angular velocity parallel to and perpendicular to the optical axis of the scene. The measured movement is used as an estimate for calculating the movement with a movement estimation method based on scene data. The estimated movement is coordinated with an associated image. The difference between the most recent image and the immediately preceding image or the average value of a plurality of preceding images is calculated as offset parameters.

Abstract: A method for image processing comprising filtration and conversion to a radiometric color image based on an original image. The method gives the processed image high spatial resolution combined with high dynamic resolution. The original image is made available in digital format. Contrast-increasing filtration is performed on the original digital image. The original digital image is converted into a radiometric pseudocolor image based on a chosen color range in which each color corresponds to an absolute measured, radiated or reflected quantity of energy within a certain wavelength band and where the images are represented in a format containing a luminance component. The filtered contrast-increased original image is scaled in terms of the luminance component in the radiometric color image. The luminance component in the radiometric color image is replaced with the scaled, filtered contrast-increased luminance component of the original image.

Abstract: A method for signal conditioning of signals from a two-dimensional image by calculating the motion of an image in relation to an image plane. Two-dimensional structures in the image are correlated between images separated in time, using Radon transforms for two or more angles in order to reduce the correlation calculations from two-dimensional correlation to correlation of two or more one-dimensional projections. The one-dimensional projections are differentiated to obtain the gradients of the projections as the basis for the correlation of images separated in time and signal conditioning. The magnitude of the gradients of the projections is ignored and the sign value of the gradients is used for a binary representation as the basis for the correlation of images separated in time.