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454results about How to "Improving Imaging Efficiency" patented technology
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Image capturing optical lens assembly
An image capturing optical lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element has positive refractive power. The second lens element has positive refractive power. The third lens element has negative refractive power. The fourth lens element has positive refractive power. The fifth lens element with negative refractive power is made of plastic material, and has an image-side surface being concave at a paraxial region and being convex at a peripheral region, wherein at least one of an object-side surface and the image-side surface of the fifth lens element is aspheric.
Owner:LARGAN PRECISION
Video encoding/decoding method and device, and recording medium storing bit stream
ActiveUS20200280735A1Improve compression efficiencyImproving Imaging EfficiencyDigital video signal modificationPattern recognitionReference map
Owner:ELECTRONICS & TELECOMM RES INST
Optical image lens system
This invention provides an optical image lens system comprising: a positive first lens element having a convex object-side surface; a second lens element; a positive third lens element; a fourth lens element; a positive plastic fifth lens element having a convex object-side surface and a concave image-side surface, at least one of the object-side and image-side surfaces is aspheric; and a negative plastic sixth lens element having a concave image-side surface, at least one of the object-side and image-side surfaces is aspheric, wherein the shape of the image-side surface changes from concave at the paraxial region thereof to convex while away from the paraxial region thereof.
Owner:LARGAN PRECISION
Method, Apparatus and Computer Program Product for Providing a Visual Search Interface
InactiveUS20090083237A1Efficient and flexibleImproving Imaging EfficiencyMetadata still image retrievalSpecial data processing applicationsVision basedPosition dependent
An apparatus for providing a visual search interface may include a processing element configured to receive indications of an image including an object, receive location information indicative of a location associated with a user providing the indications of the image, and enable performance of a visual search based on the location information and features of the image to identify candidate search results by comparing the image to source images stored in association with a location within a predetermined distance from the location associated with the user.
Owner:NOKIA TECHNOLOGLES OY
Information processing apparatus, image input apparatus, method of controlling image processing apparatus, method of controlling image input apparatus, image input system, and storage medium
ActiveUS7042603B2Improving Imaging EfficiencyCharacter and pattern recognitionImage data processing detailsInformation processingImaging processing
The present invention relates to an information processing apparatus, an image input apparatus, a method of controlling the information processing apparatus, a method of controlling the image input apparatus, an image input system, and a storage medium storing programs for implementing these methods. According to the present invention, the information processing apparatus executes image processing that can be executed by the image input apparatus, on stored image data from the image input apparatus, based on setting information input according to an operator's instruction. Therefore, a desired input image can be obtained without the need to reenter the image by the image input apparatus, thereby allowing the operator to input images more efficiently.
Owner:CANON DENSHI KK
Magnetic resonance diffusion tensor imaging method and system
ActiveCN102018514AAcquisition speed is fastFast imagingDiagnostic recording/measuringSensorsComplete dataRapid imaging
The invention relates to a magnetic resonance diffusion tensor imaging method which comprises the following steps: performing K space sparse sampling on an imaging object to obtain K space data of a diffusion weighted reference image; performing K space sparse sampling on the imaging object to obtain the K space data of a diffusion weighted image; performing share filling on the K space data of the diffusion weighted reference image and the diffusion weighted image by keyhole imaging; and performing image reconstruction on the K space data after share filling. The magnetic resonance diffusion tensor imaging method and system provided by the invention have the advantages of reconstructing complete data, shortening the scanning time, improving the data acquiring speed and achieving rapid imaging by adopting sparse sampling rapidly and continuously to acquire K space data and performing share filling under the action of the keyhole imaging technology.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
Method, Apparatus and Computer Program Product for Determining Relevance and/or Ambiguity in a Search System
InactiveUS20080270378A1Simple methodImproving Imaging EfficiencyDigital data information retrievalSpecial data processing applicationsAmbiguityProcessing element
An apparatus for a determining relevance and / or ambiguity in a search system may include a processing element configured for receiving visual media comprising a query, determining search results including a matching score for at least one candidate visual media with respect to the query based on ambiguity and relevance, utilizing a mapping function to provide a confidence level associated with the search results, and providing a visualization of the search results based on the confidence level.
Owner:NOKIA CORP
X-ray compound tomoscanning imaging system and method
InactiveCN102106740ASimplify complexityEasy to operateComputerised tomographsTomographyWhole bodyControl system
The invention discloses an X-ray compound tomoscanning imaging system and method. The whole imaging system consists of a mechanical device (comprising a shooting box, an X-ray linear array detector, an X-ray bulb tube, a light concentrator, a lifting rotating shaft and a table surface) and a monitoring feedback control system. The method comprises the steps of firstly setting the frame number N of a sequence image needed by super-resolution reconstruction; performing total body X-ray scan on a monitored object to obtain an X-ray planar image; horizontally moving the small distance of a sub-detection unit by the detector until an image sequence of displacements of N frames of sub-pixels is obtained; acquiring an X-ray planar image with a high resolution in a super-resolution reconstructionimage sequence, and finding out an interested point in the image; rotationally tomoscanning the interested point in the fault which the interested point is positioned at so as to reconstruct a computed tomography (CT) image; horizontally moving the small distance of the sub-detection unit by the detector until the image sequence of displacements of N frames of sub-pixels displacement is obtained;and super-resolution reconstructing the image sequence to obtaining the CT image with a high resolution in the super-resolution reconstruction image sequence.
Owner:HOHAI UNIV
Ultrahigh-resolution agile SAR satellite sliding spotlight mode system parameter design method
ActiveCN106226768AEconomic realizationEfficient implementationRadio wave reradiation/reflectionHigh resolution imagingUltrahigh resolution
The invention relates to an ultrahigh-resolution agile SAR satellite sliding spotlight mode system parameter design method, is applicable to flexible realization of the ultrahigh-resolution imaging SAR satellite sliding spotlight mode system parameter design through whole satellite attitude, and belongs to the technical field of overall design of SAR satellites. According to the method, an accurate orbit, an earth model, system restriction factors, and imaging work characteristics of the sliding spotlight mode are fully considered, an ultrahigh-resolution agile SAR satellite sliding spotlight mode system parameter design method is provided, and an economic and high-efficiency realization method is provided for the ultrahigh-resolution satellite-borne SAR imaging; and the criterion of uniform-beam footprint ground slide speed is employed, ground aiming points of all moments within the whole imaging time are designed, parameters such as the attitude requirement and PRF at an instantaneous moment are calculated, and compared with the conventional method for calculating the parameters according to the mode far away from ground virtual aiming points, the method is higher in precision and imaging efficiency.
Owner:BEIJING INST OF SPACECRAFT SYST ENG
Positioning and locating device for radiotherapy and positioning method of dynamic target region
ActiveCN104587609AFast cross imagingExpand the scope of useComputerised tomographsTomographyEngineeringX ray image
The invention discloses a positioning and locating device for radiotherapy and a positioning method of a dynamic target region. A therapy robot has an operating arm, wherein a compact linear electronic accelerator is arranged at one end of an operating arm of the therapy robot, and a secondary collimator is installed at one end of the compact linear electronic accelerator; a robot treatment table is arranged on a corresponding position of a double-image C-arm system, an C-arm sliding rail laser locator is arranged inside the double-image C-arm system, and a left side locator for an C-arm installation space is arranged on a corresponding position at the outer part of the double-image C-arm system. The positioning and locating device provided by the invention is provided with two groups of X-ray image systems, so as to realize binocular imaging; when the C-arm sliding rail rotates and a group of X-ray image systems is started, and CBCT (Cone Beam Computed Tomography) imaging can be realized; according to the positioning method, different imaging ways are adopted for a static target region and a dynamic target region, the rapidity and timeliness of the binocular imaging, the high quality, high definition and image registration of the CBCT imaging can be fully exerted.
Owner:RADIATION THERAPY MEDICAL SCI & TECH CO LTD
Laser radar imaging device based on compressed sensing and imaging method
ActiveCN105223582ASolve problems in signal processing capabilitiesEffective combinationElectromagnetic wave reradiationImaging qualitySignal on
A laser radar imaging device based on compressed sensing and an imaging method are disclosed. The device comprises an amplitude modulation laser light source, a beam expanding apparatus, two lenses, a DMD digital micro-mirror, an APD photoelectric detector, a high-pass filter, a multiplier, a low pass filter, two AD analog-digital converters, a control system and an image reconstruction system. After being emitted, the laser is scattered by an imaging object and then is projected to a surface of the DMD digital micro-mirror. Reflected light is focused by another lens, then is received by an APD single point detector and then is converted into an amplified voltage signal. High-pass filtering, mixing and low-pass filtering are successively performed on the voltage signal on one parallel branch and the signal penetrates into the reconstruction system after analog-digital conversion. Simultaneously, the voltage signal directly penetrates into the reconstruction system on another parallel branch after the analog-digital conversion. According to input signals of the two branches and a random matrix corresponding to a DMD control device, a certain reconstruction algorithm is combined so that the reconstruction system can complete imaging. By using the device and the method of the invention, an imaging rate and imaging quality are increased to a great extent.
Owner:XI AN JIAOTONG UNIV
Method and device for encoding/decoding image and recording medium having bitstream stored thereon
PendingUS20200413040A1Compression efficiency be improveEncode and decode efficiency of be improveDigital video signal modificationComputer visionBitstream
Owner:LX SEMICON CO LTD
Magnetic resonance imaging water-fat separation method
ActiveUS20110267054A1Reduce MRI scan timeReduced imaging timeDiagnostic recording/measuringSensorsSystem matrixIterative method
A magnetic resonance imaging (MRI) water-fat separation method includes acquiring in-phase image raw measurement data and out-of-phase image raw measurement data with an MRI device, reconstructing an in-phase image and an out-of-phase image according to a system matrix and the raw measurement data using the penalty function regularized iterative reconstruction method, and calculating water and fat images according to the in-phase image and the out-of-phase image. The use of the penalty function regularized iterative method eliminates the need for k-space raw measurement data with a 100% sampling rate, thereby reducing the MRI scan time, shortening the entire imaging time, and improving the efficiency of the MRI device.
Owner:SIEMENS HEALTHCARE GMBH
Landslide MIMO radar monitoring system and monitoring method
ActiveCN104991249AFast data collectionAdjustable arrayRadio wave reradiation/reflectionTime delaysData acquisition
Owner:GUILIN UNIV OF ELECTRONIC TECH
Method and device for collaboratively dispatching tasks among multiple earth observation satellites
InactiveCN106228261AReduce instances of overlapping execution of the same taskOptimize task schedulingForecastingResourcesEarth observationSatellite image
The invention provides a method and a device for collaboratively dispatching tasks among multiple earth observation satellites. The method comprises the steps of acquiring a directed acyclic graph corresponding to an initial to-be-observed task set of each satellite, wherein the directed acyclic graph comprises the content and a time sequence connection relation of each to-be-observed task; screening out overlapping tasks through comparing the directed acyclic graph of each satellite, wherein the overlapping tasks refer to tasks with the number of executable satellites being at least more than two; predicting an execution effect of each overlapping task according to parameters of the executable satellites; acquiring actual execution satellites of each overlapping task according to the predicted execution effect; deleting the overlapping tasks of the executable satellites except for the actual execution satellites in the initial to-be-observed task set, and generating a final to-be-observed task set of the executable satellites. The embodiment of the invention improves the satellite imaging efficiency and the utilization reasonability of satellite imaging resources.
Owner:INST OF RADAR & ELECTRONICS CONFRONTATION ARMY AIR FORCE EQUIP RES INST OF PLA
Synthetic aperture radar efficient autofocus BP method
InactiveCN103913741ASave memoryImproving Imaging EfficiencyRadio wave reradiation/reflectionGraphicsRadar
The invention discloses a synthetic aperture radar efficient autofocus BP method. The synthetic aperture radar efficient autofocus BP method comprises the steps that coarse focus BP imaging is conducted on all pixels in a scene by using a constant speed linear platform track, a small scene region is selected from an image for autofocus BP processing so as to obtain a phase error vector, an accurate APC is obtained with the optimal method on the basis of the phase error vector, and accurate BP imaging is conducted on the whole scene by using the accurate APC. According to the synthetic aperture radar efficient autofocus BP method, only the small pixel region is selected for autofocus BP processing, memory and imaging time are saved greatly, coarse focus BP at the first time and accurate BP at the second time can be executed in parallel in an IMU, and therefore imaging speed and imaging efficiency can be improved more substantially; less memory is occupied and the imaging efficiency is high so that the synthetic aperture radar efficient autofocus BP method can be more suitable for SAR actually measured data processing of large scenes.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Photographing optical lens assembly, image capturing apparatus and electronic device
ActiveUS20180059376A1Improving Imaging EfficiencyImprove variationOptical elementsCamera lensOptical axis
A photographing optical lens assembly includes, in order from an object side to an image side along an optical axis, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element has positive refractive power. The second lens element has negative refractive power. The third lens element has an object-side surface being convex in a paraxial region thereof.
Owner:LARGAN PRECISION
Preparation method and application of RGD-modified ultra-small magnetic iron oxide nanoparticles
ActiveCN104258425AStrong reducing propertiesHigh crystallinityNMR/MRI constrast preparationsEmulsion deliveryCyclic peptideActive agent
The invention discloses a preparation method of RGD-modified ultra-small magnetic iron oxide nanoparticles. The preparation method comprises the following steps: preparing ultra-small magnetic iron oxide nanoparticles by taking ferric acetylacetonate as a reaction raw material and a precursor, taking oleylamine as a surfactant and a reducing agent and taking dibenzyl ether as a solvent; replacing oleylamine molecules wrapped on the surfaces of the nanoparticles by utilizing dopamine-modified HOOC-PEG-COOH to realize PEG-modification of the surfaces of the nanoparticles; and finally, chemically coupling RGD cyclic peptide by virtue of free carboxyl at the tail end of the PEG to obtain the RGD-modified ultra-small magnetic iron oxide nanoparticles. The method of synthesizing the ultra-small magnetic iron oxide nanoparticles has the characteristics of a simple process, a high raw material conversion ratio, strong repeatability and the like. The synthesized magnetic iron oxide nanoparticles have the characteristics of a regular morphology, an ultra-small dimension, good stability, good monodispersity, high biocompatibility, and tumor specific targeting, and the like, and can be used as a T1-weighted imaging high-performance magnetic resonance imaging contrast agent with a tumor active targeting function.
Owner:SOUTHEAST UNIV
Image processing apparatus and image processing method
ActiveUS20100128963A1Improving Imaging EfficiencyReconstruction from projectionCharacter and pattern recognitionData displayImaging processing
A storage unit stores volume data including a blood vessel region. An extracting unit extracts the blood vessel region from the volume data. A specifying unit specifies a position of a region of interest in the blood vessel region and a deflection direction of a blood vessel region included in the region of interest. A determining unit determines a viewing position and a viewing direction based on the position of the region of interest and the deflection direction. A generating unit generates image data concerning the viewing position and the viewing direction based on the volume data. A display unit displays an image represented by the image data.
Owner:TOSHIBA MEDICAL SYST CORP
Apparatus and method for volumetric image reconstruction of volumetric images
InactiveUS6969174B1Improve lighting efficiencyImproving Imaging EfficiencyProjectorsOptical elementsLight beamIntensity control
A volumetric display apparatus is disclosed which includes, one or more movable generator means to receive a multitude of light sources, wherein said light sources have a non-linear spatial distribution and are independently accessed for unequal access durations, in which said light sources have multiple-element structure with independent direction and intensity control, in which light blocking means controls a direction and intensity of light beams generated by light sources, and a method employing a psudo-uniform volumetric image space in which volumetric image elements have a sane size.
Owner:RADULESCU SORIN
Method, apparatus and computer program product for multiple buffering for search application
InactiveUS20090094289A1Fast and efficientEfficient and flexibleDigital data information retrievalLocation information based serviceMultiple bufferingData set
A method, apparatus and computer program product are provided for facilitating a fast and efficient search. The apparatus may include a processor configured to receive and buffer a dataset based on the current location of a user, in a first buffer; receive and buffer another dataset based on the current location of the user and the direction of movement of the user, in a second buffer; search the dataset, based on the current location of the user, to identify an object from an image; and update buffers based on a change in location of the user, wherein updating buffers includes associating the second buffer with a current location and receive and buffer a dataset, based on the current location of the user and the direction of movement of the user, in the first buffer.
Owner:NOKIA CORP
Ultrasonic transducer scanning system and method and ultrasonic imaging device
ActiveCN109549667AHigh degree of automationEasy to operateInfrasonic diagnosticsSonic diagnosticsSonificationUltrasonic imaging
The invention relates to the technical field of ultrasonic imaging equipment, and in particular, relates to an ultrasonic transducer scanning system. The ultrasonic transducer scanning system comprises a mechanical arm, a storage unit, a path generating unit and a control device. The tail end of the mechanical arm is equipped with an ultrasonic transducer, so that the ultrasonic transducer can move and scan on the surface of target parts, which needs to be inspected, of an inspecting object. The storage unit stores reference cross-section images corresponding to different target parts. The path generating unit generates moving path information according to the initial cross-section images collected by the ultrasonic transducer and the reference cross-section images; the control device controls the mechanical arm and the ultrasonic transducer to do motion scanning to obtain target cross-section images according to the moving path information. The invention also provides a scanning method and an ultrasonic imaging device, for example, when mammary gland examination is performed, a transducer module is moved onto patient breasts for scanning through a support arm. The ultrasonic transducer scanning system can automatically obtain the target cross-section images of the target parts which needs to be inspected, has high degree of automation, and greatly improves the imaging efficiency.
Owner:CHISON MEDICAL TECH CO LTD
Method and apparatus for transform-based image encoding/decoding
ActiveUS20190215516A1Improving Imaging EfficiencyImprove encoding/decoding efficiencyDigital video signal modificationDiscrete cosine transformVideo image
The present invention relates to a method and apparatus for encoding and decoding a video image based on transform. The method for decoding a video includes: determining a transform mode of a current block; inverse-transforming residual data of the current block according to the transform mode of the current block; and rearranging the inverse-transformed residual data of the current block according to the transform mode of the current block, wherein the transform mode includes at least one of SDST (Shuffling Discrete Sine Transform), SDCT (Shuffling Discrete cosine Transform), DST (Discrete Sine Transform) or DCT (Discrete Cosine Transform).
Owner:ELECTRONICS & TELECOMM RES INST +1
Encoding method and device therefor, and decoding method and device therefor
ActiveUS20200099928A1Cod efficiency be increaseImproving Imaging EfficiencyDigital video signal modificationBitstreamVideo decoding
Provided is a video decoding method including obtaining split information indicating whether a current block is to be split; and when the split information indicates that the current block is to be split, splitting the current block into at least two lower blocks, obtaining encoding order information indicating an encoding order of the at least two lower blocks of the current block from the bitstream, determining a decoding order of the at least two lower blocks based on the encoding order information, and decoding the at least two lower blocks according to the decoding order.
Owner:SAMSUNG ELECTRONICS CO LTD
Image encoder and decoder using unidirectional prediction
ActiveUS8363965B2Improving Imaging EfficiencyEffective imagingCharacter and pattern recognitionDigital video signal modificationPattern recognitionEncoder
The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.
Owner:ELECTRONICS & TELECOMM RES INST +2
Image capturing optical system
This invention provides an image capturing optical system in order from an object side to an image side comprising: a first lens element with positive refractive power having a convex object-side surface; a second lens element; a third lens element; a fourth lens element with both the object-side and image-side surfaces thereof being aspheric, and the fourth lens element is made of plastic; and a fifth lens element with negative refractive power, both the object-side and image-side surfaces thereof being aspheric, at least one inflection point is formed on at least one of the object-side and image-side surfaces thereof, and the fifth lens element is made of plastic. By such arrangement, photosensitivity and total track length of the system can be reduced, and better image quality can be obtained.
Owner:LARGAN PRECISION
Image encoder and decoder using undirectional prediction
ActiveUS8867854B2Improving Imaging EfficiencyEffective imagingCharacter and pattern recognitionDigital video signal modificationPattern recognitionEncoder
Owner:ELECTRONICS & TELECOMM RES INST +2
Image lens system
This invention provides an image lens system comprising: a first lens element with positive refractive power; a second lens element with negative refractive power having a concave object-side surface and a concave image-side surface, both the object-side and image-side surfaces thereof being aspheric and made of plastic; a third lens element with positive refractive power; and a fourth lens element with negative refractive power, and at least one inflection point is formed on at least one of the object-side and image-side surfaces thereof; wherein, the region of the image-side surface of the second lens element near the optical axis is concave, but the off-axis region thereof is convex. By such arrangement, not only the photosensitivity and total track length of the system can be reduced, but also better image quality can be obtained.
Owner:LARGAN PRECISION
Sheet processing apparatus and image forming apparatus
ActiveUS7681872B2Improving Imaging EfficiencyFolding thin materialsElectrographic process apparatusLeading edgeTrailing edge
Owner:CANON KK
Radar video imaging method based on no-interpolation fusion fast back-projection
ActiveCN108205135AAchieve integrationLower requirementRadio wave reradiation/reflectionImage resolutionRectangular coordinates
The invention belongs to the technical field of synthetic aperture imaging and discloses a radar video imaging method based on no-interpolation fusion fast back-projection. First data is subjected tosubaperture division through an FFBP algorithm, and then each subaperture data forms a local rectangular coordinate aperture image with the center of the subaperture as the origin. The subaperture image only utilizes partial aperture data and thus is characterized by having a low azimuth resolution. Every two formed subaperture images are merged to obtain a new higher-resolution sub-image, and theprocess is performed in an iterative manner until a fully resolved polar coordinate image is obtained, and finally the polar coordinate image is interpolated to a rectangular coordinate grid to obtain a final image.
Owner:XIDIAN UNIV +1
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