Product
Feature
Quick Research
Generate reliable direction feasibility study reports for your R&D in just a few steps.
Technical Q&A
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
Find Solutions
As an expert in R&D theories, this can generate solutions to your technical problems instantly.
Evaluate Feasibility
Analyze your overall solution with one click, know your potential R&D risks in advance.
Monitor Landscape
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
37results about How to "Reduced compression loss" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
System and method for biometric data capture for event prediction
PendingUS20210076966A1Limited resourceEasy to controlElectrocardiographyEnsemble learningBiometric dataMedical procedure
A computer implemented system for automatically recording and generating predictive outputs relating to a medical procedure is described. The system is augmented with biometric sensory data from a biometric sensor coupled to a body of a healthcare practitioner. The biometric sensory data is processed to obtain one or more time-synchronized data objects providing a proxy to an estimated stress level associated with the healthcare practitioner, and the one or more time-synchronized data objects are utilized to identify abnormality-related durations of time encapsulated in the form of time-based metadata tags. The time-based metadata tags are utilized to automatically modify characteristics of the recording or generating of predictive outputs to temporarily consume more computational processing resources during the abnormality-related durations of time.
Owner:SURGICAL SAFETY TECH INC
Scroll compressor
InactiveUS20050053507A1Reduced compression lossEngine of arcuate-engagement typeOscillating piston enginesEngineeringHelix
A scroll compressor includes a first scroll and a second scroll. The first scroll has a step portion that separates an elevated portion and a recessed portion of a surface of the first scroll. A spiral wall of the second scroll has a step that separates an elevated portion and a recessed portion of the wall. A first bypass hole is provided in the elevated portion of the surface of the first scroll. A second bypass hole is provided in the recessed portion of the surface of the first scroll. The second bypass hole is within 360 degrees toward a center of the spiral of the first scroll from an outer end of the spiral. The first bypass hole is within 360 degrees from the second bypass hole toward the center of the spiral.
Owner:MITSUBISHI HEAVY IND LTD
Thickness control method of compressed layer of wood layered compression
InactiveCN107263657AEnables selective directional densificationHigh surface hardnessWood compressionSocial benefitsEconomic benefits
The invention discloses a thickness control method of a compressed layer of wood layered compression. The thickness control method comprises the following specific steps that a, wood is soaked with water; b, the wood is put onto a press which is preheated to 70-250 DEG C; c, the press is closed rapidly, the wood is preheated, and the preheating time is determined according to the position where the compressed layer is formed; d, the wood is compressed through the press, and the compressing speed is 0.05-3 mm / s; e, heat preservation is conducted, specifically, heat preservation and standing are conducted for 20 minutes or longer after compression is completed; and f, cooling is conducted, the press is opened, and the compressed wood is obtained. By the adoption of the thickness control method, thickness control of the compressed layer of wood layered compression can be effectively achieved, selective oriented compaction of the wood is achieved, the using performance and using value of the wood are greatly improved, and the thickness control method has high economic benefits and social benefits.
Owner:INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
Hydraulic Radial-piston Pump for Wind Turbines
InactiveUS20140086773A1Reduce leakageFriction minimizationPositive displacement pump componentsPiston pumpsFriction reductionRadial piston pump
A hydraulic radial-piston pump transfers the wind energy of the rotor to an adjustable hydraulic motor on ground level, driving an electric generator with constant speed. The pump consists of piston assemblies, located in radial direction between camshaft and housing, supported by spherical bearings at the housing and cylindrical bearings at the camshaft, allowing for self-adjustment of the assemblies. The radial and axial bearings of the camshaft are pivotally mounted allowing for self-adjustment to the housing. At least two planes with cams opposing each other compensate the piston forces in radial direction. Preferably, the pump has four planes symmetrically arranged around a plane between the second and third plane, compensating the piston forces in axial direction. The center of gravity of the rotor is located between or near the bearings of the camshaft. The loads are supported by hydraulic pressure fields, minimizing frictional losses and increasing longevity.
Owner:VALENTIN INGO
Method of making resilient structure including inserting heated coil spring through side surface of fiber batt
InactiveUS7125465B2Susceptibility to noiseReduce compression lossStuffed mattressesLamination ancillary operationsEngineeringCoil spring
A resilient structure having a fiber batt with coil springs disposed therein and respective coil spring paths. Each of the coil spring paths extending from a respective coil spring and having a profile similar to a cross-sectional profile of the respective coil spring taken in a plane parallel to a length of the coil spring. A method is also provided for heating the coil springs and inserting the coil springs into a side wall of the fiber batt to produce the coil spring paths that have a profile similar to a cross-sectional profile of the respective coil spring taken in a plane parallel to a length of the coil spring.
Owner:L & P PROPERTY MANAGEMENT CO
Three-dimensional seismic body vector quantization compression body rendering method
InactiveCN103487833AReduced compression lossGuaranteed drawing accuracySeismic signal processingData compressionSignal-to-noise ratio (imaging)
The invention discloses a three-dimensional seismic body vector quantization compression body rendering method. The method includes the steps of data preprocessing, vector quantization and decompression rendering. Through introduction of target features, compression loss of a target area is reduced, and the compression rate of a non-target area is improved. By means of introduction of the concept of data grading, data compression is facilitated. By means of introduction of hierarchy features, a target area is determined with combination of the hierarchy features, and compression of volume data is carried out by means of the information. Through introduction of the concept of an error coefficient, the distortion degree of the target area is effectively reduced by means of the error coefficient, and the compression rate of the whole is improved. As is shown in theories and emulation analysis, the method improves the peak signal-to-noise ratio of the target area on the situation that the whole data compression rate is improved.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
Rotary compressor having discharge groove to communicate compression chamber with discharge port near vane groove
ActiveUS9004888B2Better COPReduced compression lossRotary/oscillating piston combinations for elastic fluidsEngine of arcuate-engagement typeEngineeringMechanical engineering
Owner:FUJITSU GENERAL LTD
Data compression and decompression method, system and electronic equipment
The embodiment of the invention discloses a data compression and decompression method, system, and electronic equipment. The data compression method comprises the following steps: grouping to-be-compressed data based on a preset rule; solving an absolute of each to-be-compressed data in each group, and determining the maximum value in the absolute values in each group; computing the data compression measurement value of each group according to the absolute value in each group; determining a compression factor of each to-be-compressed data in the corresponding group based on the data compression balance value and the absolute value of each to-be-compressed data in the corresponding group; and compressing each to-be-compressed data in the corresponding group according to the compression factor of each to-be-compressed data in the corresponding group and the preset target compression absolution value bit width. By adopting the above technical scheme disclosed by the invention, the IQ datacan be effectively compressed, the compression loss of small signal is reduced, and the compression performance is improved.
Owner:RUN TECH CO LTD BEIJING
Novel swinging rotor compressor with low-pressure cavity in shell
PendingCN111720326ASolve the vibrationSolve the noiseRotary/oscillating piston combinations for elastic fluidsOscillating piston pumpsElectric machineryRefrigeration
The invention discloses a novel swinging rotor compressor with a low-pressure cavity in a shell. The novel swinging rotor compressor with the low-pressure cavity in the shell comprises a machine shelland a pump body; the pump body comprises an air cylinder component; a crankshaft is arranged on the air cylinder component in a sleeving manner; a motor is arranged above the crankshaft in a sleevingmanner; the pump body further comprises a swinging rotor arranged in the air cylinder component; the swinging rotor is connected to the air cylinder component through a sliding piece; the inner cavity of the air cylinder component is divided into a first compression chamber and a second compression chamber through the swinging rotor and the sliding piece; the first compression chamber is connected with an air suction silencing chamber through an air inlet channel; the second compression chamber is connected to an integrated exhaust cover component through an exhaust channel; and the exhaust cover component is connected to a shell exhaust pipe through an inner exhaust coil pipe. The compressor is low in vibration, low in noise, high in refrigeration amount, and excellent in starting performance.
Owner:黄石东贝压缩机有限公司
Video compression method and device, video decompression method and device, electronic equipment and storage medium
PendingCN114007059AReduced compression lossImprove image qualitySteroscopic systemsImaging qualityRadiology
The invention discloses a video compression method, a video decompression method, a video compression device, a video decompression device, an electronic device and a storage medium, wherein the video compression method comprises the following steps: obtaining a free viewpoint video frame, the video frame comprising a spliced image formed by synchronous texture maps of a plurality of viewpoints and depth maps of corresponding viewpoints; identifying a texture map area and a depth map area in the spliced image; encoding the texture map region by adopting a preset first encoding mode, and encoding the depth map region by adopting a preset second encoding mode to obtain a compressed video frame, wherein the second coding mode is a coding mode based on a region of interest. According to the scheme, the compression loss of the image can be reduced, so that the image quality of the free viewpoint video can be improved.
Owner:ALIBABA GRP HLDG LTD
Exhaust valve component and linear compressor
InactiveCN105332899AAvoid situations where cylinders cannot be effectively sealedEasy to assemblePositive displacement pump componentsPositive-displacement liquid enginesExhaust valveElastic component
The invention discloses an exhaust valve component and a linear compressor. The exhaust valve component comprises a cylinder head with an exhaust chamber and an exhaust valve piece which is arranged in the exhaust chamber and is connected with the cylinder head through an elastic component, wherein the elastic component is rod-shaped or slice-shaped. Adopting the exhaust valve can achieve the benefits that the situation that an air cylinder cannot be effectively sealed due to the deformation or decentration of a compression spring is avoided; the device is assembled more easily; and the elastic component is made of a highly elastic resilience material, so that the compression loss is reduced, the exhaust is easier, and the performance and production efficiency of the linear compressor are improved.
Owner:QINGDAO HAIER SMART TECH R & D CO LTD
Inertial data compression method, server and computer readable storage medium
ActiveCN107979378AReduced compression lossImprove predictive performanceCode conversionHigh level techniquesData compressionFeature extraction
The invention discloses an inertial data compression method, a server and a computer readable storage medium. The method includes the steps: acquiring inertial data to be compressed in an inertial sensor by the aid of the server; performing feature extraction on the inertial data to be compressed by the aid of a preset main component mapping model to obtain a mapping feature value; reflecting a mapping relationship between the inertial data and the feature value by the preset main component mapping model; performing linear predictive coding on the mapping feature value to obtain a predictive coding result; performing compression coding on the predictive coding result. Features of the inertial data to be compressed are extracted by the preset main component mapping model, predictive effectsof the predictive coding result can be improved, the predictive coding result is compressed and encoded, processing delay of the inertial data can be reduced, compression ratio is improved, processing and calculating complexity of the inertial data is reduced, and compression loss of the inertial data is reduced.
Owner:SHENZHEN TCL NEW-TECH CO LTD
Scroll compressor
ActiveUS20070065325A1Reduced compression lossEngine of arcuate-engagement typeOscillating piston enginesEngineeringHelix
A scroll compressor includes a first scroll and a second scroll. The first scroll has a step portion that separates an elevated portion and a recessed portion of a surface of the first scroll. A spiral wall of the second scroll has a step that separates an elevated portion and a recessed portion of the wall. A first bypass hole is provided in the elevated portion of the surface of the first scroll. A second bypass hole is provided in the recessed portion of the surface of the first scroll. The second bypass hole is within 360 degrees toward a center of the spiral of the first scroll from an outer end of the spiral. The first bypass hole is within 360 degrees from the second bypass hole toward the center of the spiral.
Owner:MITSUBISHI HEAVY IND LTD
Processing method and processing system for syndrome and prescription matching data
ActiveCN114864108AReduced compression lossMedical data miningAlternative medicinesMedicinal herbsMedicine
The invention relates to the technical field of data processing, in particular to a syndrome and prescription matching data processing method and system, and the method comprises the steps: obtaining syndrome data and prescription data corresponding to the syndrome data, constructing an initial self-coding neural network, and carrying out the training; the method comprises the following steps: constructing a prescription matrix according to medicinal material types of prescription data, calculating the similarity of every two prescription data according to the prescription matrix, classifying the prescription data according to the similarity of every two prescription data and obtaining category centers, and calculating a first approximation degree value of each category and a second approximation degree value of every two category centers, the method comprises the following steps of: obtaining an initial self-encoding neural network, calculating a compression coefficient of each category, obtaining a reconstruction loss function according to the compression coefficients, obtaining a final loss function according to the reconstruction loss function, training the initial self-encoding neural network based on the final loss function, and realizing data transmission by utilizing the trained self-encoding neural network. And the data transmission precision is improved.
Owner:深圳市圆道妙医科技有限公司
scroll compressor
ActiveCN106523372BImprove efficiencyReduced compression lossRotary/oscillating piston combinations for elastic fluidsRotary piston pumpsInterior spaceDrive motor
The present invention provides a scroll compressor, comprising: a housing; a driving motor; an orbiting scroll; a fixed scroll, which is combined with the orbiting scroll to form a compression space composed of a suction chamber, an intermediate pressure chamber, and a discharge chamber; a discharge cover, It is provided in the inner space of the housing, and has a space part which is separated from the inner space of the housing and communicates with the discharge chamber. The corresponding side surface has at least one discharge hole that communicates the inside and outside of the space portion with each other. Accordingly, since the oil separator is provided outside the casing, vibration noise of the compressor can be reduced. In addition, compressor efficiency is improved by optimizing the area of the discharge hole and the volume of the space.
Owner:LG ELECTRONICS INC
LTE downlink resource scheduling method for minimizing compression loss
InactiveCN106900064AImprove compression efficiencyReduced compression lossWireless communicationResource blockSerial code
The invention provides an LTE downlink resource scheduling method for minimizing compression loss. The problem that the resource block compression is unconsidered when performing resource scheduling in the prior art is mainly solved. The scheme is as follows: 1, numbering a user and expanding to be same as the resource block number; 2, initializing transition probability of an algorithm; 3, completing allocation process from all resource blocks to the user; 4, updating the current maximum throughput and the optimal allocation scheme; 5, performing the transition probability update on the algorithm based on the optimal allocation scheme; and 6, iterating the algorithm until achieving the maximum iteration time, and mapping the expanded user serial number back to an original user number, thereby obtaining the optimal allocation scheme. In the sub-band channel quality allocation, the user fairness is guaranteed, and the compression efficiency of the resource block is improved, the improvement of the throughput is maximally guaranteed, and the method can be used for the multiuser scheduling in a long term evolution system.
Owner:XIDIAN UNIV
Video compressed coding method
InactiveCN109587485ASave transmission bandwidthReduced compression lossDigital video signal modificationTransmission bandwidthAlgorithm
The invention relates to a video compressed coding method. Predicted reference weights of reference pixels in different prediction searching windows are calculated to obtain an optimal prediction residual error of each pixel, an optimal quantified residual error is obtained in an adaptive quantification manner, and thus, the transmission bandwidth after video image coding is reduced greatly, and the compression loss after compressed coding is lower.
Owner:XIAN CREATION KEJI CO LTD
VR (Virtual Reality) three-dimensional image compression method
InactiveCN109561316AIncrease the compression ratioReduced compression lossDigital video signal modificationMultiple frameKey frame
The invention relates to a VR (Virtual Reality) three-dimensional image compression method and device. The method comprises the steps of (a) obtaining a multi-frame original three-dimensional image; (b) distinguishing key frame images and non-key frame images in the original three-dimensional image; (c) eliminating redundant data in the non-key frame images; (d) dividing data of the key frame images into a plurality of macro blocks; (e) obtaining prediction residuals of the macro blocks according to an adaptive template; and (f) obtaining the quantization residuals of the prediction residualsaccording to the fluctuation state so as to form a transmission code stream. According to the invention, inter-frame compression is carried out through performing inter-frame redundancy elimination onthe VR collected three-dimensional image, and an intra-frame compression coding method based on the adaptive template and fluctuation state is adopted for key frames, so that the compression rate ofthe VR image is improved, the compression loss is reduced, and the transmission bandwidth is further reduced.
Owner:XIAN CREATION KEJI CO LTD
Exhaust valve assembly, compressor and refrigeration equipment
PendingCN110219796AOffset elasticElasticity does not need to be overcomePositive displacement pump componentsPositive-displacement liquid enginesExhaust valveEngineering
The invention relates to the technical field of household appliances, in particular to an exhaust valve assembly, a compressor and refrigeration equipment. The exhaust valve assembly provided by the embodiment of the invention comprises a valve seat, a valve plate and an auxiliary opening and closing mechanism; the auxiliary opening and closing mechanism can provide an auxiliary force for the freeend of the valve plate, auxiliary force is directed from an exhaust port to the free end of the valve plate, the auxiliary opening and closing mechanism can offset the elastic force of the valve plate with the auxiliary force of the free end of the valve plate, the elastic force of the valve plate does not need to be overcome when a compression chamber exhausts air, thus the pressure in the compression chamber is reduced when air is exhausted, the compression loss is reduced and the energy efficiency is improved; and in addition, when the compression chamber needs capacity change, the auxiliary force exerted by the auxiliary opening and closing mechanism drives the free end of the valve plate to open the exhaust port, the compression chamber communicates with a shell, a capacity chamber can not complete the compression process, and the capacity change is realized. The capacity change of the compressor can be realized without introducing pressure, and the energy efficiency of the compressor can be improved.
Owner:ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
Piston compressor and refrigerant compressor
InactiveCN101649827AAvoid surface treatmentReduce sealPositive displacement pump componentsPositive-displacement liquid enginesCylinder headEngineering
The invention relates to a piston compressor, especially a refrigerant compressor, which has a compression chamber arranged in a compressor block and limited by a cylinder head (10), the cylinder headhas at least one suction valve (23, 24) and at least one pressure valve (21, 22) as well as at least one plate valve arrangement of a valve cover (12). The invention intends to realize low manufacture cost, and good efficiency. Therefore, the valve plate arrangement (16) is formed by a support plate (17) comprising suction valves (23, 24, 26, 27) and pressure valves (18, 19, 21, 22), and the support plate (17) is connected to the valve cover (12) by at least one airtight connecting seam (28, 31), a suction area (22) and a compression area (32) are separated each other by the connecting seam (28, 31), and at least the compression area (29, 30) is sealed relatively to the outside.
Owner:DANFOSS AS
Exhaust valve plate for compressor and compressor having the same
InactiveCN103591027BImprove energy efficiencyEasy to openRotary/oscillating piston pump componentsLiquid fuel engine componentsMechanical engineeringElastic modulus
The invention discloses a discharge valve plate for a compressor and the compressor provided with the discharge valve plate. The compressor comprises an exhaust vent and a bearing, the discharge vavle plate comprises N connecting pieces that are connected sequentially, the first connecting piece is suitable for covering the exhaust vent, the Nth connecting piece is fixed on a bearing, the elasticity modulus of the ith connecting piece is Ei, and the elasticity modulus Ei meets the following conditions in the direction from the first connecting piece to the Nth connecting piece: E1<E2<......<En-1<En, wherein N is an integer larger than or equal to 2. According to the discharge valve plate provided by the invention, the requirement of low rigidity of the discharge valve plate at the beginning of exhausting is met, the discharge valve plate is easy to open, the requirement of high initial speed of closing the discharge valve plate is also met, the discharge valve plate is rapidly closed without delay, meanwhile, the end speed of closing the discharge valve plate decreases gradually, the impact of the discharge valve plate on the exhaust vent is reduced, the fatigue life of the discharge valve plate is long, and the reliability of the discharge valve plate is high.
Owner:GUANGDONG MEIZHI COMPRESSOR
Gas diffusion layer preconditioning for improved performance and operational stability of PEM fuel cells
InactiveUS20070105006A1Low compression setReduced compression lossFuel cell auxillariesActive material electrodesFuel cellsPre compression
A method for reducing the compression set of GDL during the fuel cell operation and a method for reducing the intrusion of the GDL into flow-field channels, both achieved by pre-compression preconditioning the GDL before placing it into the fuel cell. This preconditioning is performed in order to reduce the loss of compression during the life of the stack and the mal-distribution of reactant gases, and ultimately achieve the benefits of higher power output and more stable performance.
Owner:GM GLOBAL TECH OPERATIONS LLC
Image processing method, device, equipment and system
PendingCN112991192AReduced compression lossImprove performanceImage enhancementImage analysisSample imageNuclear medicine
The invention provides an image processing method, device, equipment and system. The method comprises the following steps: acquiring decoded image information; inputting the decoded image information to a first processing network, and processing the decoded image information by the first processing network to obtain a distorted image corresponding to the decoded image information; and inputting a target image corresponding to the distorted image to a second processing network, so that the second processing network performs artificial intelligence processing for realizing intelligent analysis according to the target image, wherein the first processing network is obtained by training according to the features of the sample image before coding and the features of the distorted sample image corresponding to the decoded sample image. Through the technical scheme of the invention, the compression loss in the image can be avoided or reduced.
Owner:HANGZHOU HIKVISION DIGITAL TECH
Machining fixture and machining method for piston of compressor and compressor
ActiveCN107476982AHigh compressibilityAvoid deformationOscillating piston pumpsOscillating piston liquid enginesCutting forcePiston
The invention discloses a machining fixture and a machining method for a piston of a compressor and the compressor. The machining fixture for the piston of the compressor comprises a rack, a piston, a cutting piece, a first fixing part, a second fixing part and an auxiliary part; the cutting piece can be connected with the rack, and the first fixing part is adapted for fixing the piston; and the first fixing part can be connected with the rack, the second fixing part can be switched between the first position and the second position, the second fixing part can be connected with the rack, and the auxiliary part can be connected with the second fixing part. When the second fixing part is located at the first position, the auxiliary part abuts against the piston, and an installing groove is machined on the piston by the cutting piece; and when the second fixing part is located on the second position, the second fixing part drives the auxiliary part away from the piston. According to the machining tooling for the piston of the compressor, the situations that the precision is low and the piston is deformed due to unbalancing cutting force when the cutting piece cuts the piston directly can be avoided; and the machining tooling is simple, cost is low, and precision is high.
Owner:GUANGDONG MEIZHI COMPRESSOR
Compressor piston processing tooling, processing method and compressor
ActiveCN107476982BGood compressibilityAvoid deformationOscillating piston pumpsOscillating piston liquid enginesEngineeringCutting force
Owner:GUANGDONG MEIZHI COMPRESSOR
Image encoder, an image sensing device, and an operating method of the image encoder
ActiveUS20210344869A1Reduced compression lossTelevision system detailsColor television detailsComputer graphics (images)Image signal
The present disclosure provides an image encoder. The image encoder is configured to encode an original image and reduce compression loss. The image encoder comprises an image signal processor and a compressor. The image signal processor is configured to receive a first frame image and a second frame image and generates a compressed image of the second frame image using a boundary pixel image of the first frame image. The image signal processor may include memory configured to store first reference pixel data which is the first frame image. The compressor is configured to receive the first reference pixel data from the memory and generate a bitstream obtained by encoding the second frame image based on a difference value between the first reference pixel data and the second frame image. The image signal processor generates a compressed image of the second frame image using the bitstream generated by the compressor.
Owner:SAMSUNG ELECTRONICS CO LTD
SHVC fast coding method combining coding depth estimation and Bayesian decision
ActiveCN110730350AReduce complexityQuick codingDigital video signal modificationAlgorithmCoding tree unit
The invention discloses an SHVC fast coding method combining coding depth estimation and Bayesian decision, and the method is implemented in a way that an original coding method is maintained at a base layer, and a fast coding method is adopted at an enhancement layer. The SHVC enhancement layer fast coding method comprises a coding tree unit (CTU) depth range estimation method, a coding unit (CU)fast division method based on minimum risk Bayesian decision and a prediction unit (PU) fast mode selection method based on maximum probability Bayesian decision. According to the method, the complexity of CU depth division and PU mode selection in SHVC enhancement layer coding is greatly reduced, and the coding speed of SHVC is effectively improved on the premise of maintaining the coding compression efficiency.
Owner:HANGZHOU DIANZI UNIV
A 3D Seismic Volume Vector Quantization Compressed Volume Rendering Method
InactiveCN103487833BReduced compression lossGuaranteed drawing accuracySeismic signal processingData compressionPeak value
The invention discloses a three-dimensional seismic volume vector quantization compression volume rendering method, which includes three parts: data preprocessing, vector quantization, and decompression rendering. By introducing the target feature, the compression loss of the target area is reduced, and the compression rate of the non-target area is improved; the concept of data classification is introduced to facilitate data compression; the layer feature is introduced, combined with this feature to determine the target area, and the information is used to compress the volume data ; Introduce the concept of error coefficient, through which the distortion degree of the target area can be effectively reduced and the overall compression rate can be improved. Theoretical and simulation analysis shows that the present invention improves the peak signal-to-noise ratio of the target area while improving the overall data compression rate.
Owner:UNIV OF ELECTRONICS SCI & TECH OF CHINA
A data compression and decompression method, system and electronic equipment
Owner:RUN TECH CO LTD BEIJING
Virtual reality image processing method and device
InactiveCN109582130AReduced compression lossIncrease the compression ratioInput/output for user-computer interactionDigital video signal modificationPattern recognitionImaging processing
The invention relates to a method for processing a virtual reality image. The method comprises the following steps: (a) acquiring left eye image data and corresponding right eye image data; (b) obtaining a difference pixel matrix of the left eye image and the right eye image; (c) obtaining a to-be-processed macro block of the difference pixel matrix; (d) acquiring a sampling point and a non-sampling point of the to-be-processed macro block; (e) obtaining a predicted residual error of the sampling point and the non-sampling point; (f) obtaining the distribution type of the prediction residual error of the to-be-processed macro block; and (g) obtaining the quantized residual error of the macro block to be processed according to the distribution type. Through the difference information acquisition of the left eye video data and the right eye video data and the compression encoding method with the high compression ratio, the compression loss of complex texture images is reduced, the numberof transmission bits is further reduced, and the bandwidth compression rate is increased.
Owner:XIAN CREATION KEJI CO LTD
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com