864results about How to "Reduce acquisition time" patented technology

An automated meter reading network system to collect utility usage data from multiple utility meters having utility meter sensors, program product, and associated methods are provided. The system includes multiple meter data collectors each in communication with one or more utility meters to collect utility usage data and forming a wireless communications network. The system also includes a host computer in communication with the meter data collectors either directly or through multiple field host data collectors which can be connected to the host computer through a wide area network. The system also includes a meter data collector program product at least partially stored in the memory of the host computer to manage the communication network. The meter data collector program product is adapted to analyze signal strength between nodes and to dynamically adjust the power level settings of the individual nodes to enhance network performance.

A method for padding, filtering, denoising, image enhancing and increased time-frequency acquisition is described for digitized data of a data set where unknown data is estimated using real data by adding unknown data points in a manner that the padding routine can estimate the interior data set including known and unknown data to a given accuracy on the known data points. The method also provides filtering using non-interpolating, well-tempered distributed approximating functional (NIDAF)-low-band-pass filters. The method also provides for symmetric and / or anti-symmetric extension of the data set so that the data set may be better refined and can be filtered by Fourier and other type of low frequency or harmonic filters.

A method and apparatus for Cone-Beam Computerized Tomography, (CBCT) is configured to increase the maximum Field-Of-View (FOV) through a composite scanning protocol and includes acquisition and reconstruction of multiple volumes related to partially overlapping different anatomic areas, and the subsequent stitching of those volumes, thereby obtaining, as a final result, a single final volume having dimensions larger than those otherwise provided by the geometry of the acquisition system.

Polymers whose surfaces are modified by endgroups that include amphipathic surface-modifying moieties. An amphipathic endgroup of a polymer molecule is an endgroup that contains at least two moieties of significantly differing composition, such that the amphipathic endgroup spontaneously rearranges its positioning in a polymer body to position the moiety on the surface of the body, depending upon the composition of the medium with which the body is in contact, when that re-positioning causes a reduction in interfacial energy. An example of an amphipathic surface-modifying endgroup is one that has both a hydrophobic moiety and a hydrophilic moiety in a single endgroup. For instance, a hydrophilic poly(ethylene oxide) terminated with a hydrophilic hydroxyl group is not surface active in air when the surface-modifying endgroup is bonded to a more hydrophobic base polymer. If the hydroxyl group on the oligomeric poly(ethylene oxide) is replaced by a hydrophobic methoxy ether terminus, the poly(ethylene oxide) becomes surface active in air, and allows the poly(ethylene oxide) groups to crystallize in the air-facing surface. In this example, immersion in water destroys the crystallinity as the poly(ethylene oxide) sorbs water and the hydrophobic methoxy group retreats below the surface of the polymer. Also disclosed are methods and articles of manufacture that make use of these polymers.

A method for padding, filtering, denoising, image enhancing and increased time-frequency acquisition is described for digitized data of a data set is described where unknown data is estimated using real data by adding unknown data points in a manner that the padding routine can estimate the interior data set including known and unknown data to a given accuracy on the known data points. The method also provides filtering using non-interpolating, well-tempered distributed approximating functional (NIDAF)-low-band-pass filters. The method also provides for symmetric and / or anti-symmetric extension of the data set so that the data set may be better refined and can be filtered by Fourier and other type of low frequency or harmonic filters.

Systems and methods are described for imaging an eye portion or for treating glaucoma in an eye of a patient. In a first step an optical microscopic image of a portion of the eye is acquired. In the optical microscopic image a distinguishable anatomical structure is identified to predict a location of a volume portion to be imaged three-dimensionally. Three-dimensional imaging of the located volume portion is performed by acquiring an optical coherence tomography image of the located volume portion. The volume portion is treated by either directing a laser beam to the volume portion or inserting an implant based on the OCT-image.

An automated meter reading system, communication and control for automated meter reading, a meter data collector, and associated methods are provided. The system includes at least one utility meter, at least one meter sensor interfaced with the utility meter, a meter data collector positioned adjacent the utility meter and positioned to receive data from the at least one sensor, and a remote automatic meter reading control center positioned to receive data from the collector such as through RF or other types of communication to gather and process usage reading data. Meter usage data is obtained by the collector from the meter sensor, date and time stamped, and stored in the collector until directly transmitted to the control center or a substation if within range and not blocked or impeded by a physical structure or other obstacle. If the collector is not in range, then the data is forwarded to another collector associated with a location closer to the control center or substation.

An agent includes a control processing section for performing a control of selectively collecting a plurality of management objects from a managed device, and a memory section for storing the management objects collected from the managed device. Particularly, the control processing section includes an object managing section, having a plurality of classification data items for classifying the plurality of management objects respectively, for collecting those of the management objects in advance which are classified to a specific type by the classification data to store the collected management objects in the memory section, for checking, at a time of receiving an object collection request, the classification data item for a management object requested by the object collection request, for retrieving the management object confirmed by a check result as being of the specific type from the memory section to transmit the retrieved management object, and for collecting the management object confirmed by the check result as being of a type other than the specific type from the managed device to transmit the collected management object.

A super resolution optofluidic microscope device comprises a body defining a fluid channel having a longitudinal axis and includes a surface layer proximal the fluid channel. The surface layer has a two-dimensional light detector array configured to receive light passing through the fluid channel and sample a sequence of subpixel shifted projection frames as an object moves through the fluid channel. The super resolution optofluidic microscope device further comprises a processor in electronic communication with the two-dimensional light detector array. The processor is configured to generate a high resolution image of the object using a super resolution algorithm, and based on the sequence of subpixel shifted projection frames and a motion vector of the object.

Methods of performing automated meter reading and processing meter data, are provided. A method can include collecting utility usage data by each of a plurality of meter data collectors, determining by a remote host computer a preferred polling sequence route responsive to a strength of communication signal between the remote computer and each of the plurality of meter data collectors and between each of the plurality of meter data collectors, polling each of the plurality of meter data collectors by the remote host computer with the preferred polling sequence, and transmitting utility usage data to the remote host computer from each of the plurality of meter data collectors along the same preferred polling sequence route responsive to the polling by the host computer.

A method for identifying an iris image can include obtaining an iris image of an eye, segmenting the iris image, generating, from the segmented iris image, a normalized iris image, and generating, from the normalized iris image, an iris template. The method can also include generating a modified iris template by extracting a portion of the iris template, comparing the modified iris template with a plurality of previously stored other modified iris templates and matching the modified iris template with one of the plurality of previously stored other modified iris templates. The method can also include generating a modified iris template by extracting a portion of the iris template, comparing the modified iris template with a plurality of previously stored other modified iris templates, and matching the modified iris template with one of the plurality of previously stored other modified iris templates.

The present invention includes a method for parallel magnetic resonance imaging termed Superresolution Sensitivity Encoding (SURE-SENSE) and its application to functional and spectroscopic magnetic resonance imaging. SURE-SENSE acceleration is performed by acquiring only the central region of k-space instead of increasing the sampling distance over the complete k-space matrix and reconstruction is explicitly based on intra-voxel coil sensitivity variation. SURE-SENSE image reconstruction is formulated as a superresolution imaging problem where a collection of low resolution images acquired with multiple receiver coils are combined into a single image with higher spatial resolution using coil sensitivity maps acquired with high spatial resolution. The effective acceleration of conventional gradient encoding is given by the gain in spatial resolution Since SURE-SENSE is an ill-posed inverse problem, Tikhonov regularization is employed to control noise amplification. Unlike standard SENSE, SURE-SENSE allows acceleration along all encoding directions.

A method of magnetic resonance spectroscopic imaging of an object (O) including at least one chemical species to be imaged, comprising sampling of the k-space such that a plurality of Nω first sampling trajectories through at least one k-space segment of the k-space is formed along a phase-encoding direction, each of said first sampling trajectories beginning in a central k-space region and continuing to a k-space border of the at least one k-space segment and having a duration equal to or below a spectral dwell time corresponding to the reciprocal spectral bandwidth, collecting at least one first set of gradient-echo signals obtained along said first sampling trajectories, collecting at least one second set of gradient-echo signals obtained along a plurality of Nω second sampling trajectories, said Nω second sampling trajectories and said Nω first sampling trajectories being mutually mirrored relative to a predetermined k-space line in the central k-space region.

The invention relates to a method and a device for measuring fine distribution of sample surface shape by white-light interferometry. The method comprises the following steps: respectively projecting a white light beam on the surfaces of a sample and a reference mirror; combining the reflected light beams of the two surfaces to obtain one beam, and projecting the beam on the photosensitive surface of a CCD camera to obtain interference fringe; and changing the pitch between the sample and an objective lens to form a plurality of interference images on the photosensitive surface, inputting the interference images into a computer to obtain the cosine distribution of amplitude modulation signals relevant to spectral distribution of a light source, sampling the discrete values of the plurality of amplitude modulation signals by an unequal interval sampling method, and calculating the relative height of the sample surface. The measurement device is composed of the light source, a transflective spectroscope, the CCD camera, an interference microscope objective lens, a sample stage, etc., wherein the spectroscope divides the light beam of the light source into a reflective beam and a transmissive beam; the CCD camera and the interference microscope objective lens are respectively arranged on a transmissive optical axis and a reflective optical axis; the CCD camera is control-connected with a computer; and the interference microscope objective lens can be controlled by the computer to make up-and-down movement.

A frequency calibration circuit for use in a spread spectrum receiver. The receiver includes circuitry for receiving a spread spectrum signal from a base station and for recovering a network clock signal therefrom, a low frequency oscillator for producing an oscillator clock signal, and a frequency comparator that takes as inputs the network clock signal and the oscillator clock signal and produces a calibration factor based on the difference between the clock signals. A controller coupled to the low frequency oscillator amd the frequency comparator utilizes the calibration factor together with the low frequency oscillator clock signal to output a accurate and precision timed signal thereby being able to accurately require the timing of the paging channel.

The invention discloses a method for obtaining luminance data in LED brightness adjustment and equipment thereof. The method is that: A. an LED display screen is lighted; B. a camera is used for shooting a measuring dot matrix module on the LED display screen; C. images obtained go through image processing, and the luminance of the measuring dot matrix module is confirmed according to the images; the adjusting equipment of the invention comprises: a camera used for acquiring light spot images of bright spot on the LED display screen and a processing module used for processing image information and confirming measuring bright spot and luminance data. The invention utilizes the camera to obtain the light spot images of the dot matrix module one by one so as to realize the collection of LED display screen luminance data. Compared with the method for obtaining single LED photosensitive element lightness value one by one, the invention improves working efficiency, simplifies operational process, saves collecting time and accelerates the speed of collecting luminance.

The invention provides a diffusion-tensor imaging method, which comprises the following steps of: respectively performing K space under sampling on an imaged target in each diffusion gradient direction in the same variable density sampling form to acquire K space under sampling data of each diffusion gradient direction; selecting the K space under sampling data of any diffusion gradient direction in the K space under sampling data of each diffusion gradient direction as reference K space data, and converting the reference K space data to acquire a reference image; making a difference between the K space under sampling data of each diffusion gradient direction and the reference K space data to acquire differential chart K space under sampling data of each diffusion gradient direction; rebuilding the differential chart K space under sampling data of each diffusion gradient direction to acquire a differential chart of each diffusion gradient direction; and combining the differential chart of each diffusion gradient direction and the reference image to acquire a diffusion-tensor image in each diffusion gradient direction. The invention also provides a diffusion-tensor imaging system at the same time.

A Scanning Time-Resolved Emission (S-TRE) microscope or system includes an optical system configured to collect light from emissions of light generated by a device under test (DUT). A scanning system is configured to permit the emissions of light to be collected from positions across the DUT in accordance with a scan pattern. A timing photodetector is configured to detect a single photon or photons of the emissions of light from the particular positions across the DUT such that the emissions of light are correlated to the positions to create a time-dependent map of the emissions of light across the DUT.

A method, apparatus, and computer-readable media comprising generating a positioning signal comprising a first half-field and a second half-field; and transmitting the positioning signal; wherein each of the first and second half-fields comprises 313 segments; and wherein each of the segments comprises 832 chips comprising an American Television Standards Committee (ATSC) digital television (DTV) segment synchronization signal and a pseudonoise sequence.

The invention provides a dual-mode biological image collecting device based on fingerprints and finger vein. The dual-mode biological image collecting device comprises a casing, a flat-bottomed groove is formed in the middle on the upper surface of the casing, an inclined plane is formed at the top part of the groove, electrodes are mounted at the front end and the rear end of the groove, vein image collecting infrared light sources are mounted on two side walls of the groove, a fingerprint image collecting red light source and a fingerprint image collector are mounted in the position of the bottom part of the casing corresponding to the inclined plane part of the top part of the groove, an infrared receiver and a vein image collector are mounted in the position of the bottom part of the casing corresponding to the groove, and a power supply and a control circuit for supplying power or signal transmission to the electrodes, a temperature sensor, the red light source, the infrared light source, the infrared receiver and the image collector are arranged in the casing. The performance of the biological characteristic recognition system for collecting image information in the invention is better than that of the single-mode biological characteristic recognition system just based on fingerprints and finger vein. Therefore, by adopting the dual-light-path system for collecting the images of both the fingerprints and the hand vein, the collecting speed is increased.

The invention relates to an ultrasound phased array imaging system comprising: probe (10) with a 2-D array of transducer elements (12) for acquiring 3-D ultrasound data of a volume of a body, including moving tissue and fluid flow; a beamforming system (10, 12, 14, 16) for emitting and receiving in real time ultrasound beams in said volume, which provides, in real time and in 3-D, more than one spatial receive beams signals for each transmission beam within an ensemble length of more than two temporal samples, among which the receive flow beam signals and the receive tissue beam signals are substantially temporally uncorrelated but spatially correlated; separation means (30) for processing in real time the receive beams signals, comprising adaptive spatial tissue filtering means using simultaneously more than one spatial receive beam signals acquired in 3-D within the ensemble length of more than two temporal samples, which separation means analyzes temporal variations of the respective successive receive signals and extracts flow receive beam signals from spatial combinations of receive beam signals; processing means (40, 50) and display means (62, 60) for processing flow Doppler signals and for displaying images based on said processed flow Doppler signals.

The invention discloses a fast magnetic resonance imaging method based on residual U-net convolutional neural network and the method comprises three steps of preparing training data, carrying out training based on the residual U-net convolutional neural network, and carrying out image reconstruction based on the residual U-net convolutional neural network. By adding the residual module into the U-net convolutional neural network, the problems of gradient disappearance, overfitting, low convergence speed and the like of the U-net convolutional neural network can be solved, and the quality of rapid MRI imaging based on the U-net convolutional neural network is improved.

The invention relates to a method and device for observing photoacoustic imaging in a single-array element and multi-angle mode based on compressive sensing, belonging to the technical field of photoacoustic imaging and aiming at solving the problems of serious artefact, deformed images, high hardware cost and poor lateral resolution of images in the existing photoacoustic technology for imaging biological tissues. The method comprises the following steps: leading a pulsed laser to emit pulsed laser beams, irradiating the pulsed laser beams upon the biological tissues by using an optical maskto generate photoacoustic signals, observing and acquiring the photoacoustic signals synchronously by using two angled single array element ultrasonic probes, amplifying the photoacoustic signals, sending the photoacoustic signals to an A / D (analog to digital) converter, sampling uniformly, inputting acquired photoacoustic image data into a computer by using an FPGA (field programmable gate array), and reconstructing and fusing photoacoustic images by using the computer. Due to the adoption of a hardware platform and a processing mechanism which is rapidly constructed based on the compressivesensing algorithm by using the single array element ultrasonic probes to acquire the photoacoustic signals in parallel, the high resolution of the images are ensured on the premise that the sampled data are reduced and the acquiring time is shortened. The device for imaging is easy to operate.

Systems and methods are described for imaging an eye portion or for treating glaucoma in an eye of a patient. In a first step an optical microscopic image of a portion of the eye is acquired. In the optical microscopic image a distinguishable anatomical structure is identified to predict a location of a volume portion to be imaged three-dimensionally. Three-dimensional imaging of the located volume portion is performed by acquiring an optical coherence tomography image of the located volume portion. The volume portion is treated by either directing a laser beam to the volume portion or inserting an implant based on the OCT-image.

The invention relates to a scan type automatic zooming iris image acquisition system and acquisition method, wherein the acquisition system comprises an image acquisition unit and a control unit; the image acquisition unit comprises a camera, a chilled mirror, a light source, a focus-variable optical lens set and an image acquisition card; the control unit comprises a light source control circuit, a zooming motor control circuit, a zooming motor and a computer; the chilled mirror, the focus-variable optical lens set and the chilled mirror are connected together in turn with the central axial lines being at one straight line; the light source which is positioned around the chilled mirror is used to illuminate the eyes of acquisition object; the zooming motor which is connected with the focus-variable optical lens set is used to regulate the imaging distance of the focus-variable optical lens set to move between farthest and nearest positions; the image acquisition card is used to receive images collected by the camera and to transmit the images to the computer; the computer controls switch on / off of the light source through the light source control circuit; the zooming motor control circuit connects the zooming motor and the computer, while the computer controls the zooming motor control circuit to make the zooming motor rotate. The invention has the advantages of a simple structure, low cost and short acquisition time.

The invention provides a full-depth Fourier-range Doppler optical coherence tomography method which adopts an optical-fiber frequency domain optical coherence tomography system. The method is as follows: a complex tomographic signal obtained by the sinusoidal phase-modulation complex frequency domain optical coherence tomography method is used to calculate a Doppler signal so as to obtain a full-range structural tomographic image and a full-range Doppler image. The invention adopts the mode of synchronization of phase modulation and lateral scanning, so as to reduce the time of data acquisition and is enabled to be relatively suitable for in vivo imaging of a biological sample. The impact of a mirror image is eliminated to allow a to-be-test sample to be always in a region with a relatively-high signal-to-noise ratio in the system, and the modulation amplitude of sinusoidal phase modulation is small and close to a position of zero optical path difference all the time, so that a relatively-high velocity detection sensitivity can be obtained within the whole image. A full-depth Doppler image with a relatively-high velocity detection sensitivity can be obtained while a full-depth tomographic structural image with a relatively-high signal-to-noise ratio is obtained.

In a method and magnetic resonance MR system for the optimization of angiographic MR images of an examination subject, in which arteries can be presented separately from veins in the angiographic magnetic resonance images, multiple MR overview images are acquired, with at least one imaging parameter being varied in the acquisitions of the MR overview images, at least one optimized imaging parameter is automatically calculated using a quality criterion, and the optimized imaging parameter is provided for the acquisition of the angiographic magnetic resonance images in which arteries can be shown separately from the veins.

A Scanning Time-Resolved Emission (S-TRE) microscope or system includes an optical system configured to collect light from emissions of light generated by a device under test (DUT). A scanning system is configured to permit the emissions of light to be collected from positions across the DUT in accordance with a scan pattern. A timing photodetector is configured to detect a single photon or photons of the emissions of light from the particular positions across the DUT such that the emissions of light are correlated to the positions to create a time-dependent map of the emissions of light across the DUT.

A high resolution scanning electron microscope collects secondary Auger electrons through its objective lens to sensitively determine the chemical make-up with extremely fine positional resolution. The system uses a magnetic high resolution objective lens, such as a snorkel lens or a dual pole magnetic lens which provides an outstanding primary electron beam performance. The Auger electrons are deflected from the path of the primary beam by a transfer spherical capacitor. The primary beam is shielded, by a tube or plates, as it traverses the spherical capacitor to prevent aberration of the primary beam and the external wall of the shield maintains a potential gradient related to that of the spherical capacitor to reduce aberration of the primary electron beam. The coaxial configuration of the primary electron beam and the collected secondary electron beam allows the Auger image to coincide with the SEM view.

The invention relates to a liquor storage management system based on RFID. The liquor storage management system based on RFID comprises five functional modules which are a warehousing management module, a stock management module, a warehouse-out management module, an order processing module and an order query module. Through the warehousing management module, a door type reader-writer can automatically read a warehousing liquor case label ID number, a storage zone for the type of liquor is automatically distributed by the system according to warehousing information, the warehousing information is further updated to a database; warehousing quantity, warehouse-out quantity and stock quantity can be queried according to different query conditions through the stock management module, a production department is prompted to produce products when stock is insufficient; through the warehouse-out management module, the door type reader-writer can automatically read a warehouse-out liquor case label ID number, the warehouse-out information and an order state are timely updated to the database; an order is generated according to a title of a client and order information through the order processing module, and information is updated to the database; an order state, order information and client information can be queried according to various conditions through the order query module, so delivery missing and late delivery are avoided.