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47 results about "Stereo processing" patented technology
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Stereo image processing apparatus and method of processing stereo image
InactiveUS6970593B2Accurate three-dimensional shapeAccurate dataImage enhancementImage analysisStereo matchingSatellite image
To provide a stereo image processing device enabling sufficiently accurate three-dimensional data to be obtained from satellite stereo images and aerial stereo images automatically with no involvement of operators and for complicated objects such as buildings in urban areas. A satellite image storing unit stores satellite image data. A stereo processing unit subjects satellite image data obtained from the satellite image storing unit to stereo matching processing to generate three-dimensional data. A DEM data automatic correcting unit uses information of external shape of buildings and the like obtained from map data in a map data storing unit to correct automatically erroneous data such as noises and losses in the three-dimensional data obtained with the stereo processing unit. The map data storing unit provides map data such as external shapes of buildings and the like to the DEM data automatically correcting unit.
Owner:NEC CORP
Map change detection device, map change detection method, and program
InactiveUS20080298638A1Automatic detectionLow costImage enhancementImage analysisDigital surfaceStereo image
Changes in houses and buildings on a two-dimensional map are detected using three-dimensional data obtained from stereo images. A change detection device that detects changes in features that are targets described on a map has a stereo processor, a feature height calculator, and a demolition and / or new building detector. The stereo processor is inputted with a plurality of images taken of predetermined regions from a plurality of different positions, and extracts digital surface model data representing surfaces of the regions in three-dimensional coordinates. The feature height calculator extracts feature heights where an elevation of ground level is subtracted from the digital surface model data extracted by the stereo processor. The demolition and / or new building detector detect changes in the feature that are the targets described on a map by comparing feature height data and map data. An elevation region extractor extracts an elevation region that is a set of points having a height greater than or equal to the predetermined value, compares the elevation region and the map data, and detects changes in the feature constituting the targets.
Owner:NEC SOLUTION INNOVATORS LTD
Affine transformation analysis system and method for image matching
InactiveUS20040175057A1Minimize the differenceImprove accuracyImage analysisGeneral purpose stored program computerRadio frequencyVisual perception
An affine transformation analysis system and method is provided for matching two images. The novel systolic array image affine transformation analysis system comprising a linear rf-processing means, an affine parameter incremental updating means, and a least square error fitting means is based on a Lie transformation group model of cortical visual motion and stereo processing. Image data is provided to a plurality of component linear rf-processing means each comprising a Gabor receptive field, a dynamical Gabor receptive field, and six Lie germs. The Gabor coefficients of images and affine Lie derivatives are extracted from responses of linear receptive fields, respectively. The differences and affine Lie-derivatives of these Gabor coefficients obtained from each parallel pipelined linear rf-processing components are then input to a least square error fitting means, a systolic array comprising a QR decomposition means and a backward substitution means. The output signal from the least square error fitting means then be used to updating of the affine parameters until the difference signals between the Gabor coefficients from the static and dynamical Gabor receptive fields are substantially reduced.
Owner:TSAO THOMAS +1
Audio processing device
InactiveUS20110096631A1Indirect soundBeacon systems using ultrasonic/sonic/infrasonic wavesSpeech analysisAudio frequencyComputer science
In an audio processing device, a target sound emphasizer generates a target sound emphasized component by emphasizing a target sound component contained in a plurality of audio signals generated by a plurality of sound receiving devices. A stereo processor generates a stereo component of a plurality of channels from the plurality of audio signals. A first adjuster adjusts a sound pressure level of the target sound emphasized component according to a first adjustment value, and a second adjuster adjusts a sound pressure level of the stereo component according to a second adjustment value. A variable setter variably sets a zoom value which is changeable between a wide angle side and a telephoto side relative to a target. An adjustment controller controls the first adjustment value according to the zoom value such that the sound pressure level of the target sound emphasized component exponentially decreases as the zoom value changes toward the wide-angle side and controls the second adjustment value according to the zoom value such that the sound pressure level of the stereo component increases as the zoom value changes toward the wide-angle side.
Owner:YAMAHA CORP
Apparatus and method for effectively transmitting image through stereo vision processing in intelligent service robot system
InactiveUS20100004784A1Guaranteed normal transmissionSave network resourcesProgramme controlImage enhancementVision processingComputer terminal
A data transmission apparatus of an intelligent robot system and a method thereof are provided. The data transmission apparatus includes a vision processor collector, a communicating unit, and a controller. The vision processor collects images captured through a camera, and performs an image process on the collected image to minimize a quantity of information about unnecessary regions in the collected image. The communicating unit communicates with the robot server, transmits the processed image data from the vision processor to the robot server, and receives corresponding result data from the robot server. The controller controls the image process and the transmission of the processed image data in the vision processor, and a corresponding operation of the robot terminal performed according to result data received from the robot server.
Owner:ELECTRONICS & TELECOMM RES INST
Single camera video-based speed enforcement system with a secondary auxiliary RGB traffic camera
ActiveUS20140267733A1Facilitates video-based speed estimationRoad vehicles traffic controlColor television detailsStereo cameraRoad surface
When performing video-based speed enforcement a main camera and a secondary RGB traffic camera are employed to provide improved accuracy of speed measurement and improved evidentiary photo quality compared to single camera approaches. The RGB traffic camera provides sparse secondary video data at a lower cost than a conventional stereo camera. The sparse stereo processing is performed using the main camera data and the sparse RGB camera data to estimate a height of one or more tracked vehicle features, which in turn is used to improve speed estimate accuracy. By using secondary video, spatio-temporally sparse stereo processing is enabled specifically for estimating the height of a vehicle feature above the road surface.
Owner:CONDUENT BUSINESS SERVICES LLC
A method and device for stereoscopic video acquisition for mobile terminal
ActiveCN102263977ASolve the shortcomings of not being able to convert 2D images into stereoscopic images in real timeReduce computationTransmissionSteroscopic systemsStereoscopic videoViewpoints
The invention discloses a stereo video acquisition method for a mobile terminal. The method comprises the following steps: inputting a stereo video parameter on a mobile terminal; packaging the stereo video parameter into an XML (X Extensible Markup Language) file; transmitting the XML file and the video content into a server for analyzing by an HTTP (Hyper Text Transport Protocol); according to the analyzed stereo video parameter, carrying out virtual viewpoint calculation on the video content so as to obtain a visual viewpoint image; synthesizing and coding the virtual viewpoint image to obtain the stereo video content; transmitting the stereo video content to the mobile terminal; and carrying out subsequent processing by the mobile terminal. The invention also discloses a stereo video acquisition device for a mobile terminal. According to the wireless communication technology, the video content which needs to be viewed is transmitted to the server for stereo processing, thereby effectively solving the problem of large computational load of stereo video data information.
Owner:TSINGHUA UNIV
Stereophonic sound processing system
A stereophonic sound processing system for localizing a sound image at desired locations using devices including a headphone and a speaker, includes a processing unit for generating stereophonic sound on the basis of an input signal. The processing unit includes: a plurality of stereophonic filter units each including an FIR filter for processing an input signal; a selecting unit for selecting one of the plurality of stereophonic filter units in accordance with a desired factor; wherein the processing unit controls the selected stereophonic filter unit so as to generate stereophonic sound on the basis of a processed result supplied by the selected stereophonic filter unit.
Owner:FUJITSU LTD
Method and device for stereo images processing
InactiveUS20170353708A1Improve efficiencyMinimizing transferImage enhancementImage analysisPeak valueLocal memories
The present invention is related to the processing of stereo pairs (images obtained simultaneously from two cameras), namely, to methods and devices for processing stereo images. The technical result of the invention is creation of a method and a device for processing high-resolution stereo images with improved efficiency (performance) using a limited amount of memory with the help of a hardware accelerator for calculating the disparity map using a semi-global stereo matching algorithm with three-stage post processing (peak detection, interpolation and median filtering), which requires placing only a few strings (from 4 to 24 at different stages of calculating) in the local memory, which allows to obtain a high-quality disparity map in real time, and also by placing programmable cores of signal processors into the device, which prepare data for calculating the disparity map (rectification of images) and final processing of data using video analytics algorithms, and the hardware accelerator, which minimizes the transfer between external memory and the device, since the left and right images are fully loaded only once, and the results of the processing are data structures of a much smaller volume.
Owner:CO RES & DEV CENT ELECTRONICS INFORMATION COMPUTATION SYST
Method and device for embedding watermark in audio signal
The invention discloses a method and a device for embedding a watermark in an audio signal. The method comprises the steps of: judging whether a current left channel audio frame and a current right channel audio frame are both steady-state audio frames; if so, comparing frequency spectrum data of a scaling factor band on a position in a harmony channel audio frame with frequency spectrum data of a scaling factor band on the position in a balance channel audio frame, wherein the harmony channel audio frame and the balance channel audio frame are generated by carrying out middle side stereophonic treatment on the left channel audio frame and the right channel audio frame; and if a comparison result meets a preset requirement, embedding the watermark into the scaling factor band of the position in the balance channel audio frame.
Owner:FUJITSU LTD
Regeneration method and apparatus, program and recording medium
The present invention provides a reproducing method and apparatus for decoding processing and reproducing encoded audio data transmitted together with information necessary for stereo processing which is intermittently multiplexed in encoded information of a monaural audio signal. The reproduction method includes: a first step of outputting a stereo audio signal using a monaural audio signal if the necessary information for stereo processing is not provided; and a second step of starting to update the state in the filter if the necessary information for stereo processing is provided variable, and output the stereo audio signal using the monaural audio signal until all state variables are updated; and the third step, if the state variable in the filter is updated, then the monaural audio signal is performed based on passing through the stereo Stereo processing of stereo processing information for processing necessary information acquisition, and generating and outputting a stereo audio signal. The invention can be applied in the field of audio processing.
Owner:SONY CORP
Virtual reality tourism system
InactiveCN106293094ALife a little more accidentalBreak the rules of lifeInput/output for user-computer interactionWeb data navigationVirtual realityStereo processing
The invention provides a virtual reality tourism system. The virtual reality tourism system comprises virtual glasses. The virtual glasses are connected with a controller, the controller is connected with a storage server, map information is set in the storage server, corresponding tourism images are arranged at the map information positions, and the controller carries out stereo processing on the tourism images and presents the tourism images to a user through the virtual glasses. By means of the virtual reality tourism system, the user can have the simulative tourism experience through the virtual reality technology, and the joy of life can be increased.
Owner:合肥东上多媒体科技有限公司
Three-dimensional server
The invention discloses a stereo server, which is characterized in that the hardcore of the stereo server comprises a main controller, stereo processing software, a memorizer, a multimedia output interface and a pair of aided 3D video glasses. The stereo server can synchronously play or output two or more images, which ensures that a stereo image can be seen through a display screen with stereo displaying function or the 3D video glasses. The multimedia output interface is one or multiple of an analogue signal output interface, the output interface of a digital signal, an infrared interface, a bluetooth interface, a WIFI interface and the Ethernet interface. A stereo cinema server and a full-functional stereo server are disclosed either.
Owner:许丰
Three dimensional imaging data viewer and/or viewing
A method includes displaying three dimensional medical imaging data in three dimensions via a display monitor (134) by generating and visually presenting a stereoscopic view of the three dimensional medical imaging data in the display monitor. A system includes a stereo processor (114) that processes three dimensional medical imaging data and generates two images from two different viewpoints, which are shifted from each other by a predetermined distance and are angled by a predetermined angle, and a display monitor (134) used to alternately display the two images, thereby creating a stereoscopic view.
Owner:KONINKLIJKE PHILIPS ELECTRONICS NV
Map change detection device, map change detection method, and program
InactiveUS8116530B2Automatic detectionLow costImage enhancementImage analysisDigital surfaceStereo image
Owner:NEC SOLUTION INNOVATORS LTD
Communication terminal apparatus and reproducing method
InactiveUS20050105714A1Friendly operationDevices with sensorCurrent supply arrangementsComputer hardwareTerminal equipment
User friendly operation of a communication terminal apparatus equipped with a music reproducing function is improved. The communication terminal apparatus is comprised of a storage unit for storing thereinto a voice signal, and a signal processing unit for stereophonically processing the voice signal stored in the storage unit. When the voice signal is reproduced, the communication terminal apparatus switches a setting condition as to whether or not the voice signal is stereophonically processed by the signal processing unit in response to a peripheral condition of this communication terminal apparatus, an identification signal added to the voice signal, or such a condition as to whether or not an earphone is connected to the communication terminal apparatus.
Owner:HITACHI LTD
Audio stereo processing method, device and system
ActiveUS7702111B2Improve fidelityGood suitPseudo-stereo systemsTwo-channel systemsPhase shiftedLoudspeaker
The present invention relates to a method and a device for processing and reproducing an audio stereo signal. The method produces a left output signal for transmission to a left loudspeaker in a loudspeaker pair, which is, or is equivalent to, the sum of the mid input signal (M) and the side input signal (S), the method further produces a right output signal for transmission to a right loudspeaker in said pair, which is, or is equivalent to, the sum of the mid input signal (M) and the side signal (S) phase shifted 180° . The method further being characterized in that at least part of the side input signal (S) or the mid input signal (M) is phase shifted approximately 45°-135° relative to the other signal prior to or at the production of the left and right output signals. The invention further relates to such an audio stereo signal reproduction system.
Owner:EMBRACING SOUND EXPERIENCE
MP3 encoder with running water parallel process
InactiveCN1301457CReduce processing timeInput/output to record carriersSpeech analysisBand-pass filterParallel processing
This invention provides a MP3 decoder which mainly comprises a inverse quantizer, a dimensional sound processor, a IMDCT and a synthesis sub-band filter. The invention enables the pipelining parallel processing between the IMDCT and the synthesis sub-band filter to be implemented by changing the implementing sequence in IMDCT.
Owner:VIA TECH INC
Sound signal reproduction device, sound signal reproduction method, program, and recording medium
InactiveUS20180048978A1Input/output for user-computer interactionPosition data use in hearing devicesSound source locationSound sources
A virtual sound source position determination unit (122) determines a position of the virtual sound source from which a sound represented by a sound signal is output based on a detected motion of a user (31). A sound signal processing unit (123) performs stereophonic sound processing on the sound signal based on the determined position of the virtual sound source. The sound signal processing unit (123) reproduces the sound signal subjected to the stereophonic sound processing. Thus, the sound signal is reproduced such that the sound suitable for the motion of the user is output.
Owner:SHARP KK
Stereo coding method and stereo decoding method
ActiveCN104347077ACompact Fusion FrameworkReduce the amount of calculationSpeech analysisTime domainTime delays
The invention discloses a stereo coding method which comprises the following steps: acquiring a time-domain signal, selecting a block length, converting time frequency, coding stereo parameters, processing a single track and packaging. The invention also discloses a stereo decoding method which comprises the following steps: unpackaging, decoding the single track, decoding the stereo parameters, processing stereo and inversely converting the time frequency. After the stereo coding method and the stereo decoding method are adopted, an integration framework which is more compact with a core single track coding and encoding device is provided, and the step of converting the time frequency is reused, so that the calculated amount and the time delay cost which are caused by repeatedly converting the time frequency can be reduced; furthermore, a more flexible coding method of interframe combination and intra-frame combination is provided, so that the data size of the final coding result is reduced, and the higher audio quality can be obtained under the different stereo parameter code rate configurations.
Owner:TSINGHUA UNIV
Large-size aluminium honeycomb board
InactiveCN102444255ARich demandMeet individual needsCovering/liningsMetal layered productsBaseboardKeel
The invention discloses a large-size aluminium honeycomb board. The board comprises an aluminium veneer surface board (1), aluminium honeycomb boards (3) and an aluminium veneer baseboard (2), which are compounded to form the three-layer composite aluminium honeycomb board. The board also comprises aluminium keels (4) which are arranged between the aluminium veneer surface board (1) and the aluminium veneer baseboard (2). The board has the following advantages that: the board has light weight and good strength and can undergo stereo processing to realize curved surface and double curved surface modeling, thus meeting the requirements of people on decoration engineering diversity and individualization.
Owner:GOLD MANTIS CONSTR DECORATION
Preparation system and preparation method for sound intermediate frequency function in physics
ActiveCN109920397AUnderstand visual presentationLearn about VisualizationElectrophonic musical instrumentsPseudo-stereo systemsSyllableIntermediate frequency
The invention provides a preparation system and a preparation method for a sound intermediate frequency function in physics and relates to the field of multimedia teaching. According to the preparation method for the sound intermediate frequency function in physics provided by the invention, a polar coordinate system is adopted, screen limit is broken through, a whole chapter is completely shown to an operator, various function waveforms can be set according to requirements and voice frequency wave information can be directly displayed. The preparation method mainly comprises the following steps: preparing a basic syllable, making music, adding a music effect (or setting no music effect), performing reverberation treatment, controlling with buttons, and playing music. According to the invention, two characteristics of physical sound teaching and music teaching are combined for helping a producer to fully understand audio features, relation of rising tone, falling tone and original sound, and methods for end syllable treatment, stereo treatment, and the like, so that students can understand knowledge about music theory and direct display of intermediate frequency function in physics. According to the invention, programming tools, such as C language and java language, can be adopted for replacing a geometer sketchpad.
Owner:李奕君
Single camera video-based speed enforcement system with a secondary auxiliary RGB traffic camera
ActiveUS9183746B2Road vehicles traffic controlClosed circuit television systemsStereo cameraRoad surface
When performing video-based speed enforcement a main camera and a secondary RGB traffic camera are employed to provide improved accuracy of speed measurement and improved evidentiary photo quality compared to single camera approaches. The RGB traffic camera provides sparse secondary video data at a lower cost than a conventional stereo camera. The sparse stereo processing is performed using the main camera data and the sparse RGB camera data to estimate a height of one or more tracked vehicle features, which in turn is used to improve speed estimate accuracy. By using secondary video, spatio-temporally sparse stereo processing is enabled specifically for estimating the height of a vehicle feature above the road surface.
Owner:CONDUENT BUSINESS SERVICES LLC
Playback method and apparatus, program, and recording medium
InactiveUS8363842B2Reduce processAvoid negative effectsBroadcast information characterisationSpeech analysisMultiplexingComputer hardware
There is provided a playback method for decode-processing and playing back coded audio data which is transmitted with necessary stereo process information required for a stereo process intermittently multiplexed into coded information of a monaural audio signal. The playback method includes a first step of outputting stereo audio signals using the monaural audio signal if the necessary stereo process information is not supplied; a second step of starting updating stereo variables within filters, and outputting the stereo audio signals using the monaural audio signal until all the state variables are updated, if the necessary stereo process information is supplied; and a third step of performing the stereo process based on stereo process information acquired by the necessary stereo process information, on the monaural audio signal to generate and output stereo audio signals, if all the state variables within the filters are updated.
Owner:SONY CORP
Sound signal reproduction device, sound signal reproduction method, program, and recording medium
InactiveUS10085107B2Input/output for user-computer interactionPosition data use in hearing devicesSound sourcesComputer science
A virtual sound source position determination unit (122) determines a position of the virtual sound source from which a sound represented by a sound signal is output based on a detected motion of a user (31). A sound signal processing unit (123) performs stereophonic sound processing on the sound signal based on the determined position of the virtual sound source. The sound signal processing unit (123) reproduces the sound signal subjected to the stereophonic sound processing. Thus, the sound signal is reproduced such that the sound suitable for the motion of the user is output.
Owner:SHARP KK
Method and device for embedding watermark in audio signal
The invention discloses a method and a device for embedding a watermark in an audio signal. The method comprises the steps of: judging whether a current left channel audio frame and a current right channel audio frame are both steady-state audio frames; if so, comparing frequency spectrum data of a scaling factor band on a position in a harmony channel audio frame with frequency spectrum data of a scaling factor band on the position in a balance channel audio frame, wherein the harmony channel audio frame and the balance channel audio frame are generated by carrying out middle side stereophonic treatment on the left channel audio frame and the right channel audio frame; and if a comparison result meets a preset requirement, embedding the watermark into the scaling factor band of the position in the balance channel audio frame.
Owner:FUJITSU LTD
Gas filter
PendingCN108926929AImprove stabilityEffective filteringDispersed particle filtrationTransportation and packagingComputer scienceAerosol
The embodiment of the invention provides a gas filter, wherein the gas filter includes N layers of stereo filter screens, each layer of stereo filter screen comprises a plurality of tetrahedral filterunits which are connected to form the stereo filter screen; each filter unit comprises at least two groups of perpendicularly interlaced silks, the groups of silks are parallel to each other, and thecross section of each group of silks has multiple V-shaped structures, wherein N is a natural number greater than or equal to 1. A grille is used for fixing a plurality of supporting parts for supporting N layers of stereo filter screens, and the plurality of supporting parts are adaptive to N layers of stereo filter screens. Through the embodiment of the invention, with the use of a number of layers of stereo filter screens, the stereo processing space can be increased, micro-particles and aerosols can be effectively filtered, and the problem that a filter device in the prior art cannot effectively treat micro-particles and aerosols is solved.
Owner:北京柯美瑞环保科技有限公司
Stereo processing method and system of earphone assembly and earphone assembly
PendingCN111142665AImprove experienceReal locationInput/output for user-computer interactionHeadphones for stereophonic communicationSound source locationSound sources
The invention relates to a stereo processing method and system of an earphone assembly and the earphone assembly. The earphone assembly comprises a first earphone and a second earphone. The stereo processing method comprises the following steps: detecting motion parameters of the first earphone; transmitting the detected motion parameters of the first earphone to the second earphone; and respectively adjusting the audio signals to be played by the first earphone and the second earphone based on the motion parameters, so as to enable the adjusted audio signals to simulate the sound change caused by the motion of the corresponding earphones relative to the sound source position. Therefore, each earphone in the earphone assembly can timely adjust the generated stereophonic sound so as to simulate the stereophonic sound change caused by the change of the relative positions of the earphones and the sound source.
Owner:BESTECHNIC SHANGHAI CO LTD
Playback Method and Apparatus, Program, and Recording Medium
InactiveUS20080170704A1Reduce processing volumeAvoid negative effectsBroadcast information characterisationSpeech analysisMultiplexingComputer hardware
There is provided a playback method for decode-processing and playing back coded audio data which is transmitted with necessary stereo process information required for a stereo process intermittently multiplexed into coded information of a monaural audio signal. The playback method includes a first step of outputting stereo audio signals using the monaural audio signal if the necessary stereo process information is not supplied; a second step of starting updating stereo variables within filters, and outputting the stereo audio signals using the monaural audio signal until all the state variables are updated, if the necessary stereo process information is supplied; and a third step of performing the stereo process based on stereo process information acquired by the necessary stereo process information, on the monaural audio signal to generate and output stereo audio signals, if all the state variables within the filters are updated.
Owner:SONY CORP
Audio processing device
In an audio processing device, a target sound emphasizer generates a target sound emphasized component by emphasizing a target sound component contained in a plurality of audio signals generated by a plurality of sound receiving devices. A stereo processor generates a stereo component of a plurality of channels from the plurality of audio signals. A first adjuster adjusts a sound pressure level of the target sound emphasized component according to a first adjustment value, and a second adjuster adjusts a sound pressure level of the stereo component according to a second adjustment value. A variable setter variably sets a zoom value which is changeable between a wide angle side and a telephoto side relative to a target. An adjustment controller controls the first adjustment value according to the zoom value such that the sound pressure level of the target sound emphasized component exponentially decreases as the zoom value changes toward the wide-angle side and controls the second adjustment value according to the zoom value such that the sound pressure level of the stereo component increases as the zoom value changes toward the wide-angle side.
Owner:YAMAHA CORP
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