Abstract: A waveguide comprises a first surface and a second surface. The first surface comprises a first plurality of grating structures. The first surface other than the first plurality of grating structures comprises a first reflective layer. The second surface comprises a second reflective layer. The waveguide is configured to guide an in-coupled light beam to undergo reflections between the first reflective layer and the second reflective layer. The first plurality of grating structures are configured to disrupt the reflections to cause at least a portion of the in-coupled light beam to couple out of the waveguide and project from the first surface, the portion of the in-coupled light beam coupled out of the waveguide forming out-coupled light beams.

Abstract: A surgical positioning system includes an emitter secured to a medical implant; at least three microphones; at least one processor; and a memory. The emitter has a speaker and a power source. The memory stores instructions for execution by the processor that, when executed, cause the processor to receive, from each of the at least three microphones, information about a detected sound; and calculate, based on position information corresponding to each of the at least three microphones and the received information, a position of the implant.

Abstract: Methods and systems for the efficient determination of the direction of multiple signal sources in both near and far field using hierarchical combinations of sets of raw input signals to convert spatial input to angular output. Each increasing hierarchical combination increases angular resolution, improving image quality with low computational expenditure.

Abstract: An underwater ultrasonic device includes a curvilinear ultrasonic transducer and a plurality of straight linear ultrasonic transducers. The straight linear ultrasonic transducers are disposed with respect to the curvilinear ultrasonic transducer. A first angle is included between the straight linear ultrasonic transducers. One of the curvilinear ultrasonic transducer and the straight linear ultrasonic transducer is configured to transmit a plurality of ultrasonic signals. Another one of the curvilinear ultrasonic transducer and the straight linear ultrasonic transducer is configured to receive a plurality of reflected signals of the ultrasonic signals.

Abstract: The present invention discloses an item locating and finding method, system and device based on acoustic signal, which relates to the field of item location, and aims at solving the problems in the prior art that a specific directional angle of the item cannot be detected and the technical solutions in the prior art are not suitable for common intelligent terminals and are greatly affected by the environmental noise; performing unilateral and bidirectional ranging based on the acoustic signal; and performing location by using acoustic ranging and PDR.

Abstract: An ultrasound probe contains an array transducer and a microbeamformer coupled to elements of the array. The microbeamformer comprises analog to digital converters and digital beamforming circuitry for at least thirty-two digital channels in the microbeamformer. Preferably the analog to digital converters are low power ADCs for reduced power consumption in the probe. Integrated circuits of thirty-two channels can be cascaded to produce 64-channel and 128-channel digital microbeamformers for an ultrasound array probe.

Abstract: A phased array antenna system comprising a plurality of isotropic radiating elements and/or omnidirectional receiving elements addressing close in fields and a plurality of non-isotropic radiating elements and/or non-omnidirectional receiving elements addressing remote fields with the combined elements used to extend the maximum range of the antenna system without increasing the number of element nor the output power of the antenna. The non-isotropic radiating elements and/or the non-omnidirectional receiving elements can be formed by adding focusing structures such as lenses or reflective structures in the radiating path of isotropic radiating elements and/or omnidirectional receiving elements. Antennas with combined isotropic radiating and non-isotropic radiating elements can be utilized for electromagnetic phased array radar, communication and imaging systems and for acoustic phased array sonar or ultrasound systems.

Abstract: Defining critical spacing is necessary for steering of parametric audio. Comparing steering measurements both with and without a waveguide leads to a conclusion that the diffuse phyllotactic grating lobe contributes audio and is to blame for poor steering. In addition, the waveguide needs to function with correct phase offsets to achieve the steering required for performance. Arranging tubes so that the array configuration changes from rectilinear to another distribution is useful when the waveguide is short of critical spacing or constrained for space. Array designs may also capitalize on rectilinear transducer design while having the benefits of a transducer tiling that has irrational spacing to promote the spread of grating lobe energy.

Abstract: An ultrasound probe contains an array transducer coupled to a digital microbeamformer. The digital microbeamformer is capable of producing delayed echo signals which are a delayed by a fraction of a clock cycle of received digital echo signals. The fractional delay is produced by an FIR filter which conserves power by weighting digital echo signals without the use of digital multipliers.

Abstract: Array microphone systems and methods that can automatically focus and/or place beamformed lobes in response to detected sound activity are provided. The automatic focus and/or placement of the beamformed lobes can be inhibited based on a remote far end audio signal. The quality of the coverage of audio sources in an environment may be improved by ensuring that beamformed lobes are optimally picking up the audio sources even if they have moved and changed locations.

Abstract: A phased array antenna system comprising a plurality of isotropic radiating elements and/or omnidirectional receiving elements addressing close in fields and a plurality of non-isotropic radiating elements and/or non-omnidirectional receiving elements addressing remote fields with the combined elements used to extend the maximum range of the antenna system without increasing the number of element nor the output power of the antenna. The non-isotropic radiating elements and/or the non-omnidirectional receiving elements can be formed by adding focusing structures such as lenses or reflective structures in the radiating path of isotropic radiating elements and/or omnidirectional receiving elements. Antennas with combined isotropic radiating and non-isotropic radiating elements can be utilized for electromagnetic phased array radar, communication and imaging systems and for acoustic phased array sonar or ultrasound systems.

Abstract: A phased array antenna system comprising: a first plurality of array elements, each array element in the first plurality comprising a radiating element having a generally isotropic radiating pattern and/or a receiving element having a generally omnidirectional field of view; and a second plurality of array elements, each array element in the second plurality comprising a radiating element having a non-isotropic radiating pattern and/or a receiving element having a non-omnidirectional field of view; wherein: the generally isotropic radiating pattern comprises a field of at least 120° in azimuth and 90° in elevation; the generally omnidirectional field of view comprises a field of at least 120° in azimuth and 90° in elevation; the non-isotropic radiating pattern comprises a field of less than half of the field of the generally isotropic radiating pattern in azimuth and/or elevation; and the non-omnidirectional field of view comprises a field of less than half of the field of the omnidirectional field of view.

Abstract: An ultrasonic detecting device may include a transmitter, a receiver, a motor, and processing circuitry. The transmitter may transmit a sequence including a first pulse wave and a second pulse wave separated by a time interval shorter than a time required for an ultrasonic wave to make a round trip underwater to a detection range. The receiver may convert reflection waves of the first and second pulse waves into echo signals. The motor may rotate the receiver. The processing circuitry may acquire, from the echo signals, a first echo signal and a second echo signal, generate first image data based on the first echo signals and second image data based on the second echo signals, and generate synthesized image data based on an angular position of the receiver when the first image data is generated, and an angular position of the receiver when the second image data is generated.

Abstract: According to one embodiment, an ultrasonic diagnostic apparatus includes at least a memory circuitry, a processing circuitry, a data interpolation circuitry, and an image generating circuitry. The memory circuitry stores a plurality of pieces of reception data in an order of reception, the plurality of pieces of reception data being received continuously in a time series by a plurality of transducers, and specifies reading positions in an order different from the order of reception. The processing circuitry calculates a delay time, and calculates, based on the delay time, reading positions for acquiring reception data being used for calculating interpolation data from the memory circuitry. The data interpolation circuitry calculates interpolating data based on the plurality of pieces of reception data acquired from the calculated reading positions of the memory circuitry. The image generating circuitry generates an ultrasonic image based on a reception beam formed by using the interpolation data.

Abstract: An ultrasound scanning system includes a probe adaptor, a plurality of channel modules and a backend controller. The probe adaptor is connected to an ultrasound probe and has a plurality of frontend channels. Each of the channel modules has an identification code and includes a switch, a transmitter, a transmitter beamformer, a receiver and a receiver beamformer, wherein the switch is coupled to the probe adaptor, the transmitter is coupled to the switch, the transmitter beamformer is coupled to the transmitter, the receiver is coupled to the switch, and the receiver beamformer is coupled to the receiver. The backend controller is coupled to the probe adaptor, the transmitter beamformer of each of the channel modules and the receiver beamformer of each of the channel modules.

Abstract: The application relates to bi-static or multi-static holographic navigation systems, including methods of localizing an emitter or receiver with high precision relative to the sea floor. The system and methods can be used with a fully active sonar or radar system using well synchronized transmitters and receivers. The system and methods can be used with a passive sonar or radar system localizing a transmitter or a receiver based on poorly timed received signals.

Abstract: The present invention relates to a method for making a device for monitoring the structural integrity of structures such as beams, plates and shells, made of isotropic, anisotropic and/or laminated material, and to such a device. The method provides to define a asymmetric directivity function D(k1,k2) that has, in the domain of wave numbers, a plurality of maxima arranged on different concentric circumferences having center in the origin of the axes. Then a load distribution in spatial coordinates f(x1,x2) is computed by inverse Fourier transform of the directivity function D(k1,k2). Then therefore the device is made with the electrodes, whose shape is obtained by gathering the values of the load distribution f(x1,x2) in the plane having for coordinates the set of real numbers and imaginary numbers, defining at least two sectors of said plane that comprise at least one real value and one imaginary value.

Abstract: An electronic device includes a first portion, a second portion, and a joint moveably coupling the first and second portions for angular adjustment between the first and second portions. A speaker is fixed on the first portion at a first known distance from the joint, and a microphone is fixed on the second portion at a second known distance from the joint. An angle sensing machine is configured to emit a known sound from the speaker, detect the known sound at the microphone, and measure a transmission time of the known sound from speaker to microphone. Based on the transmission time, a current angle of the first portion relative to the second portion is calculated.

Abstract: A system having a transceiver and a receiver. The transceiver may be configured to generate a light signal having a plurality of bands of light across a number of defined angles. Each of the light bands relates to a height of the transceiver relative to a road. The receiver may be configured to (i) receive the light signal and (ii) calculate a distance to the transceiver based on a detected one of the bands of light. The distance is used to provide localization in an autonomous vehicle application.

Abstract: A method and device for sound source positioning using a microphone array. The method comprises: determining a horizontal axis that a microphone array rotates around as a reference axis; calculating, according to a sound emitted by a sound source that is collected by the microphone array, to obtain a first sound source estimated value indicating a sound source position in a three-dimensional space; acquiring an inclination angle between a plane in which the microphone array is located when it is rotating and a horizontal plane in which the reference axis is located; and according to the first sound source estimated value and the inclination angle, calculating out a second sound source estimated value on a horizontal plane corresponding to the first sound source estimated value, and using the second sound source estimated value as the determined sound source position.

Abstract: An acoustic phased array antenna system comprising a plurality of omnidirectional receiving elements for addressing close-in fields and a plurality of non-omnidirectional receiving elements for addressing remote fields with the combined elements used to extend the maximum range of the antenna system. The non-omnidirectional receiving elements can be formed by adding focusing structures such as cylindrical or oval lenses in the receiving path of omnidirectional receiving elements. Antennas with a plurality of isotropic radiating and a plurality of non-isotropic radiating elements can be utilized for sonar and ultrasound systems. An acoustic phased array antenna system comprising a first plurality of receiving elements with a first field of view and a second plurality of receiving elements with a second field of view that is at least 50% narrower. An acoustic phased array with a plurality of isotropic radiators and a plurality of non-isotropic radiators to extend the range of the system.

Abstract: Provided are an ultrasound probe, an element circuit thereof, and an ultrasound diagnostic device, whereby high image quality is possible and reduced size and lower cost are made possible. Provided is an ultrasound probe, comprising: a 2-D array transducer wherein a plurality of transducers are arrayed two-dimensionally; and a 2-D array IC in which are formed, upon an IC substrate, drive circuits which are disposed upon each of the transducers of the 2-D array transducer to drive each of the transducers at different timings with a prescribed delay quantity, and common current sources which supply drive current to the transducers of the 2-D array transducer. The number n of the common current sources which are formed upon the IC substrate is fewer than the number N of the drive circuits which are formed upon the IC substrate.

Abstract: A UT method includes steps of: placing multiple sensors on a test object, the sensors each having multiple elements; connecting the sensors to a UT device such that multiple elements each selected one by one from each of the sensors are set as one group, and the multiple elements belonging to a same group are selectively connected to a common connector of the UT device via a switcher; inputting to the UT device a collection of UT conditions used for the multiple sensors; causing the UT device to perform UT operations sequentially while switching the sensors connected to the UT device with the use of the switcher; and storing UT data in which the sensors used for UT match UT conditions on the basis of the order of execution of UT conditions included in the collection of UT conditions.

Abstract: An ultrasonic device provides a wider image to a user of the device and includes a transducer for transmitting a plane wave; and a processor for controlling the transducer to sequentially transmit plane waves in a plurality of different travelling directions and thereby extend a transmission range in which the plane waves travel, where the transducer receives a plurality of ultrasonic signals which are reflected from an object by each of the transmitted plane waves, and the processor synthesizes the plurality of received ultrasonic signals so as to image at least a predetermined partial region in the extended transmission range.

Abstract: Improved two-dimensional planar array transducer and beamformer apparatus and methods. In one embodiment, the two-dimensional planar array transducer is capable of simultaneously or sequentially forming multiple acoustic beams in two axes and at two or more widely separated acoustic frequencies from a single flat planar array transducer. The transducer planar array consists of two or more electrically and acoustically independent two dimensional planar transducer array structures operating at different frequencies that are physically integrated onto a single multi frequency configuration. In an exemplary embodiment, a second higher frequency transducer array is positioned within the aperture area of a lower frequency planar array transducer. Methods of using the aforementioned two-dimensional planar array transducer and beamformer are also disclosed.

Abstract: Embodiments of the present disclosure provide a reflector antenna and an antenna alignment method. The reflector antenna includes: a feed array, including N feeds, where N is an integer greater than 1; a reflector, configured to: reflect a signal from the feed array or reflect a signal to the feed array; and M radio frequency channels, where the radio frequency channel includes at least one of an adjustable gain amplifier or a phase shifter, configured to control a signal, M is an integer greater than 1 and less than N, each radio frequency channel corresponds to one of the N feeds, a correspondence between the radio frequency channel and the feed is changeable, and the radio frequency channel transmits or receives a signal by using a corresponding feed.

Abstract: The present technology relates to an audio processing apparatus and method capable of improving localization of an audio image at lower cost, and a program. A microphone array picks up a planar wave of the audio from a sound source. A drive signal generation unit generates a speaker drive signal of a spatial domain on the basis of a spatial frequency spectrum of a sound pickup signal acquired by the sound pickup by the microphone array. An orientation information acquisition unit acquires talker's orientation information on an orientation of a talker. A spatial filter application unit performs a filter processing on the speaker drive signal by use of a spatial filter defined by the talker's orientation information thereby to reduce spatial aliasing. The present technology can be applied to a spatial aliasing controller.

Abstract: Systems and methods of driving plate loudspeakers with different parameters based on frequency region in a way similar to typical cone driver crossover networks are described. These systems and methods may be implemented using arrays of independently controlled drivers which allow a designer to emphasize or de-emphasize certain modes in certain frequency bands. Tuning the characteristics of the plate's motion can also affect the acoustical properties in a larger space rather than just at a single location. The systems and methods described herein can grant a designer a degree of control over the characteristics and performance of the plate.

Abstract: The invention generally relates to sonar devices that integrate forward-looking sensors with down-looking echosounders, side scanning sonar, or both. The invention provides a sonar system that includes a forward-looking sonar device that operates in an integrated fashion with one or more other sonar devices so that a boater can have a reliable navigation tool while also using sonar for finding fish and other features on the seafloor. The forward-looking sonar can include a transducer array that takes a three-dimensional acoustic reading of the objects and seafloor ahead. The electronics that process the acoustic data can also process data from down-looking sonar, side-scanning sonar, or both and can integrate the information to present an expansive display in the boat, revealing the contents and the floor of the sea in front of around, and under the boat.

Abstract: Method and device for performing ultrasonic imaging on a region of interest are disclosed. The method comprises: emitting a first ultrasonic pulse and receiving a first ultrasonic echo signal; emitting a second ultrasonic pulse and receiving a second ultrasonic echo signal; emitting a third ultrasonic pulse and receiving a third ultrasonic echo signal; extracting echo signal components from the first ultrasonic echo signal, the second ultrasonic echo signal and the third ultrasonic echo signal; and producing an ultrasonic image of the region of interest according to the echo signal component; wherein, amplitude weighting of the third ultrasonic pulse is equal to the sum of amplitude weightings of the first ultrasonic pulse and the second ultrasonic pulse in magnitude. The method processes and modulates the plurality of ultrasonic echo signals, so as to separate nonlinear components and linear components in the ultrasonic echo signals.

Abstract: A waveguide comprises a first surface and a second surface. At least one of the first surface or the second surface comprises a plurality of grating structures. The waveguide is configured to guide an in-coupled light beam to undergo total internal reflection between the first surface and the second surface. The grating structures are configured to disrupt the total internal reflection to cause at least a portion of the in-coupled light beam to couple out of the waveguide from the first surface, the portion of the in-coupled light beam coupled out of the waveguide forming out-coupled light beams.

Abstract: A pixel in an integrated-circuit image sensor is enabled to output, throughout a sampling interval, an analog signal having an amplitude dependent, at least in part, on photocharge integrated within a photosensitive element of the pixel. A plurality of samples of the analog signal are generated during an initial portion of the sampling interval that is shorter than a settling time for a maximum possible level of the analog signal.

Abstract: An imaging device includes an optical system including a movable lens, an image capture unit configured to capture a subject image through the optical system, a sound-collecting microphone, and a control unit configured to control the optical system and the image capture unit and to receive an sound signal from the microphone. The imaging device has a first mode and a second mode as moving-image shooting modes. The control unit makes the movable lens move faster in the first mode than in the second mode when a moving image is captured. The control unit filters the sound signal with a narrower-band filter in the first mode than in the second mode.

Abstract: A digital-to-analog converter (DAC) circuit includes a first DAC that produces a first analog output signal based upon a received multi-bit digital signal and upon a received clock. A second DAC that produces a second analog output signal based upon the received multi-bit digital signal and upon the received clock, wherein the first and second DACs are connected in parallel and process the same multi-bit digital signal. In one embodiment, the DACs produce differential signals. A low pass filter connected to receive the first and second analog outputs is configured to sum the first and second analog outputs and to filter the summed first and second analog outputs to produce an ingoing analog signal. An amplifier is connected to receive the ingoing analog signal to produce an amplified ingoing analog signal.

Abstract: A multiple-input multiple-output (MIMO) over-the-air (OTA) test system and method are provided that enable a device under test (DUT) to be tested that has no antenna connectors for interfacing antenna elements of the DUT with the MIMO OTA test system. The MIMO OTA test system and method can include a lens system that allows the OTA tests to be performed in a radiating near-field zone, thereby allowing a relatively small and less expensive anechoic chamber to be used in the MIMO OTA test system.

Abstract: An ultrasonic measurement apparatus includes a transmission processing unit that performs processing for transmitting an ultrasonic wave at a given transmission angle, a reception processing unit that performs reception processing of an ultrasonic echo with respect to the transmitted ultrasonic wave in first to Nth (N is an integer equal to or greater than 2) ultrasonic transducers; and a processing unit that performs processing with respect to first to Nth reception signals corresponding to the first to Nth ultrasonic transducers. The processing unit performs first phasing processing when a signal processing target point exists in a plane wave propagation region, and performs second phasing processing when the signal processing target point exists in a spherical wave propagation region, as phasing processing with respect to each of the reception signals of the first to Nth reception signals.

Abstract: A novel system and method for spatial sound generation is disclosed. A system and method for generating bodiless mid-air speakers includes the steps of: generating a modulated signal by modulating an ultrasonic carrier signal with an audio signal, determining a phase delay value for each ultrasonic transducer of an array of ultrasonic transducers with respect to one or more focal points, and driving each such ultrasonic transducer with the modulated signal in accordance with the phase delay value determined for each ultrasonic transducer to generate audible sound at the one or more focal points.

Abstract: Provided are a sonar system and transducer assembly for producing a 3D image of an underwater environment. The sonar system may include a housing having a transmit transducer that may transmit sonar pulses into the water. The system may include at least one sidescan transducer array in the housing that receives first and second sonar returns with first and second transducer elements and converts the first and second returns into first and second sonar return data. The first sidescan element may also transmit second sonar pulses, and at least one of the sidescan elements may receive the second sonar pulses to generate sidescan sonar return data. A sonar signal processor may then generate a 3D mesh data and sidescan image data and generate a 3D image data based on the 3D mesh data and sidescan image data. An associated method of using the sonar system is also provided.

Abstract: A self-contained monitor array for measuring at least one type of electromagnetic emission and at least one type of mechanical wave emission from a marine-based and/or terrestrial human activity or installation such as alternate energy sources. A multi-modal monitor system includes at least two such arrays, at least one clock, and at least one data storage unit. The monitor system is employed at the site of a turbine installation to measure at least one type of emission generated by the turbine and may comprise a controller to compare the emission signals with pre-determined acceptable value ranges and adjust the performance of the turbine accordingly.

Abstract: An automated measurement system includes multi-axis imager configured to receive images of a workpiece wherein the images include visual information about the workpiece at a plurality of focus planes or visual information about the workpiece between at least two focus planes. The multi-axis imager is also configured to determine a point cloud of a plurality of 3 D data points wherein each of the plurality of 3 D data points represents an intersection of one of the plurality of focus planes with a surface of the workpiece or positional information of the workpiece in a de-focused area between the at least two focus planes. The multi-axis imager is further configured to determine a plurality of dimensions of features of the workpiece and compare the determined plurality of dimensions of the features to manufacturing specifications corresponding to at least some of the determined plurality of dimensions of the features.

Abstract: A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.

Abstract: An ultrasound transducer probe (104) includes a transducer array (108) of elements (110) that emit an ultrasound signal and receive analog echo signals produced in response thereto and a beamformer (112), housed by the probe, that converts the analog echo signals to digital signals, applies delays to the digital signals, and sums the delayed digital signals, produces a value of a bit stream, wherein the beamformer apodizes the signals.

Abstract: Provided are an ultrasonic probe capable of forming an image without degradation even when the frequency band of a photoacoustic wave and the frequency band of an ultrasonic wave used in ultrasonography are separated from each other, and an inspection object imaging apparatus including the ultrasonic probe. The ultrasonic probe includes a first array device capable of transmitting and receiving an ultrasonic wave; and a second array device capable of receiving a photoacoustic wave. The first array device includes plural electromechanical transducers arranged in a direction perpendicular to a scanning direction, the second array device includes plural electromechanical transducers arranged in a two-dimensional manner, and the first array device and the second array device are provided on the same plane and in the scanning direction.

Abstract: A system and a method involve acoustic source localization for multiple acoustic sources using passive sonar. Tracks are constructed based on source location maps (SLMs) that reveal the locations of the sources over a grid of tentative source locations. The proposed estimator for the SLMs performs coherent processing of broadband acoustic measurements, capitalizes on the sparse structure of the SLMs, and uses the prior SLM estimate to capture temporal information about the locations of the sources.

Abstract: A Remotely Powered Underwater Acoustic Sensor Networks (RPUASN) paradigm and the node architecture for RPUASN are disclosed. In RPUASN, sensor nodes harvest and store power supplied by an external acoustic source, extending their lifetime indefinitely. Necessary source characteristics are determined. The ability of an RPUASN sensor to harvest its required power is disclosed with respect to source parameters and distance to the source. Performance of RPUASN is directly related to the sensing coverage and communication connectivity over the field the sensor nodes are deployed. The required number of RPUASN nodes and the volume which is guaranteed to be covered by the nodes is disclosed in terms of electrical power, range, directivity and transmission frequency of the external acoustic source, and node power requirements.

Abstract: A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.

Abstract: A dynamically reconfigurable framework manages processing applications in order to meet time-varying constraints to select an optimal hardware architecture. The optimal architecture satisfies time-varying constraints including for example, supplied power, required performance, accuracy levels, available bandwidth, and quality of output such as image reconstruction. The process of determining an optimal solution is defined in terms of multi-objective optimization using Pareto-optimal realizations.

Abstract: A system (100) is provided for imaging a patient's interior. The system comprises an imaging sensor (120) for acquiring a series of images of a region of interest (020) in the patient's interior, and a plurality of light sources (140) for illuminating the region of interest in the patient's interior from different light source directions (152-156). A light controller (160) is provided for controlling individual ones (142-146) of the plurality of light sources (140) to dynamically vary the light source directions (152-156) during said acquiring. Moreover, a processor (180) is provided for obtaining lighting data (164) indicative of the dynamically varying light source directions. The processor (180) is further arranged for using the lighting data to apply a photometric stereo technique to the image data so as to establish a three-dimensional [3D] surface profile of the region of interest.

Abstract: A self-contained monitor array for measuring at least one type of electromagnetic emission and at least one type of mechanical wave emission from a marine-based and/or terrestrial human activity or installation such as alternate energy sources. A multi-modal monitor system includes at least two such arrays, at least one clock, and at least one data storage unit.

Abstract: A system and method for ultrasonic imaging utilizing multiple sets of transmit pulses differing in amplitude, frequency, phase, and/or pulse width. One embodiment has phase differences between the k transmit signal as 360 k degrees providing for constructive interference of the kth order harmonic pulse, while an amplitude modulation of each transmit profile is constant between sets. These sets of pulses are transmitted into media of interest and received echoes from these pulses are combined to form an averaged signal. The averaged pulses represent the net common mode signal received from each of the transmit sets. This combined signal set is used to reconstruct an ultrasound image based on broad beam reconstruction methodology.