Raytheon Company

Verity Instruments, Inc.

David U Fluckiger

Christopher J Beardsley

Martin Spence Denham

Raymond Samaniego

John Louis Tomich

Eran Marcus

Andrew Weeks Kueny

Eric J Beuville

Robert C Gibbons

Brian F Boland

Craig R Franklin

Colin M Johnston

Matthew John Francis Hayes

William M Casey

Terry McLean

A system for processing video. The system may include a video camera, a processing unit, and a video display, the video camera being configured to generate a plurality of consecutive luminance frames, including a last frame and a plurality of preceding frames. The processing unit may be configured to: shift the plurality of preceding frames, to register the preceding frames with the last frame to form a plurality of shifted frames, take a Fourier transform of each of the plurality of frames, to form a corresponding plurality of initial Fourier transform frames, iteratively update the plurality of Fourier transform frames by, on the (n+1)iteration of a plurality of iterations, replacing each Fourier transform frame with a linear combination of the Fourier transform frames of the niteration, the Fourier transform frames of the 0iteration being the initial Fourier transform frames.

Full motion color video atmospheric turbulence correction processing

System and method for image turbulence correction includes: receiving a plurality of consecutive image frames; demosaicing previous, current and preceding image frames into a plurality of same size overlapping video tiles; determining a displacement of each of the video tiles; converting the video tiles of the current image frame, the previous image frame, and the plurality of preceding image frames into a frequency domain; iteratively processing the video tiles of the previous image frame, the current image frame and the plurality of preceding image frames for turbulence correction in the frequency domain; converting the turbulence corrected video tiles into a spatial domain, wherein the converted turbulence corrected video tiles form a single video frame tile including turbulence degradation correction; and mosaicing the single video frame tiles including turbulence degradation correction together to generate a full field of view turbulence correct video stream.

Image turbulence correction using tile approach

Systems and methods that can be used in lightweight vehicles, such as lightweight small Armed Aerial Scout (AAS) vehicles, and can provide small, lightweight weapons capable of 'Fire and Forget' type performance to defeat the next generation 'Swarm Weapon Systems', such as, groups of high speed attack boats armed with anti ship weapons, are disclosed.

Systems and methods for acquiring and launching and guiding missiles to multiple targets

According to one aspect, a Read-Out Integrated Circuit (ROIC) with integrated Compressive Sampling (CS) is provided. The ROIC includes an input to couple to a photodetector array including a plurality of photodetectors and is configured to generate compressed image data by sampling and summing the values of the plurality of photodetectors consistent with a set of Compressive Sampling Measurement Matrices and provide the resulting coded aggregates to a signal processor as compressed image data.

Read-out integrated circuit with integrated compressive sensing

A method for computing a cross-correlation between a first sequence and a second sequence includes: generating a first index vector based on the first sequence, the first index vector including a plurality of first elements, the first index vector excluding indices of zero valued elements of the first sequence; generating a second index vector based on the second sequence, the second index vector including a plurality of second elements, the second index vector excluding indices of zero valued elements of the second sequence; computing, on a processor, a plurality of pairwise differences between each of first elements of the first index vector and each of the second elements of the second index vector; and binning, on the processor, the plurality of pairwise differences to generate the cross-correlation of the first sequence and the second sequence.

Computing cross-correlations for sparse data

Laser light pulsed to illuminate and reflect from at least one object is received at a digital micro-mirror device including an array of mirrors each of which may be selectively controlled to be oriented to either reflect incident light onto a detector or not. The detector outputs a signal representative of an amount of light sensed. By applying M spatial patterns to the mirrors, each in synchronization with one pulse from the laser, and storing sampled signal values from the detector output at each of K times following a pulse from the laser, the collected information may be used to reconstruct K images each using all M spatial patterns and stored sampled signal values corresponding to a respective one of the K times. Each of the K images corresponds to a different range to the digital micro-mirror device, such that the system may be employed as a range finder.

Linear mode computational sensing LADAR

An autofocus metric approach for focusing video images, automatically, based on images taken during a focus sweep in which a focus cell is repositioned for each of the images is provided. The approach includes, given an edge detected image from the focus sweep and an associated focus cell position in the focus sweep, an autofocus engine dividing the edge detected image into sub-images. For each sub-image, the autofocus engine calculates a normalized edge detection strength and compares it to a threshold. Based on the comparison, the autofocus engine determines whether an edge is present in the sub-image. Based on the determinations of edges in the sub-images, the autofocus engine calculates an autofocus metric associated with the given focus cell position. The autofocus engine provides the autofocus metric together with autofocus metrics associated with other focus cell positions to focus the video images.

Robust autofocus algorithm for multi-spectral imaging systems

According to one embodiment of the invention, a method of signal modulation includes modulating a signal by providing respective sets of weights to an active array antenna. Each set of weights specifies the same preferential direction for transmission by the active array antenna, but corresponds to a respective different one of a phase and amplitude of the signal in the preferential direction. The respective ones of a phase in the preferential direction provide modulation of the signal.

Sidelobe information suppression via antenna mode modulation

According to one embodiment, a system for measuring vibration includes multiple spatially separated detectors coupled to a differential signal analyzer and a light source. The light source generates a coherent light beam onto a target that is reflected as backscattered light. The differential signal analyzer receives signals from each of the detectors indicative of backscattered light from the target. The differential signal analyzer then applies a phase shift to a subset of the received signals and combines the phase shifted signals with signals from other detectors to form a differential signal representative of physical vibration of the target.

Differential mode laser detection and ranging device

According to one embodiment, a laser detection and ranging system includes a beam forming element that is optically coupled to a light source. The light source generates a light beam that is split by the beam forming element into multiple beamlets and directed toward a target. At least one of the beamlets are reflected from the target as backscattered light that is received by a detector that generates a signal indicative of a characteristic of the target.

Energy efficient laser detection and ranging system

An efficient system ( ) for measuring target characteristics via a torsion mode beam of electromagnetic energy. The system ( ) includes a first mechanism ( ) for transmitting the torsion mode beam toward a target ( ). A second mechanism ( ) receives the resulting target return beam and provides a first signal in response thereto. A third mechanism ( ) employs the first signal to determine rotational characteristics of the target ( ). In a specific embodiment, the system ( ) further includes a fourth mechanism ( ) that reduces or eliminates noise in the return beam based on common mode noise rejection. A fifth mechanism ( ) identifies the type of the target based on the target rotational characteristics via comparison to predetermined target rotational signatures ( ). An additional mechanism ( ) selectively switches the mode of the beam between a first mode and a second mode. The first mechanism ( ) and second mechanisms ( ) employ a laser transceiver ( ) having a transmit chain ( ) and a receive chain ( ). The transmit chain includes a time-division multiplexer ( ) or a spatial multiplexer ( ) for selectively transmitting the beam of electromagnetic energy or for selectively transmitting first and second spatially separated beams characterized by the first and second modes, respectively. The receive chain ( ) includes a corresponding time-division demultiplexer ( ) or spatial demultiplexer ( ), respectively, for providing the first signal. In a more specific embodiment, the first mode is a left-handed Laguerre-Gaussian torsion mode, and the second mode is a right-handed Laguerre-Gaussian torsion mode. The third mechanism ( ) determines rotational Doppler due to reflection of the beam of electromagnetic energy from the target.

Efficient system and method for measuring target characteristics via a beam of electromagnetic energy

A spectral ellipsometer that enables complete simultaneous measurement of ellipsometric parameters of a surface with thin films and coatings for the full wavelength range of interest by using an imaging spectrograph together with a novel optical arrangement that disperses the polarization information of a time-invariant train of optical signals in a linear spatial array of points along or parallel to an input aperture or slit of the imaging spectrograph and disperses the polarization information in wavelength perpendicular to the aperture or slit to provide a two-dimensional spectrograph image that is collected and stored by an imaging array with one axis relating to wavelength and the other axis relating to the light polarization. Multiple simultaneous measurements of the spectral ellipsometric parameters .psi. (psi) and .DELTA. (delta) are taken at all wavelengths without the need of any time-varying or mechanically-moving optical elements. The ellipsometer can be used for real-time measurements of ellipsometric parameters of a moving or static surface with the thin films and coatings.

Growing community of inventors

Allen, TX, United States of America

David U Fluckiger