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51 results about "Composite graph" patented technology
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Spatio-temporal graph-segmentation encoding for multiple video streams
ActiveUS20060165169A1Color television with pulse code modulationColor television with bandwidth reductionGraphicsStream capture
A multiple video stream capture and encoding apparatus produces compressed data that represents multiple video streams capturing a common scene. Inages from multiple video streams are analyzed to identify image color segments that are encoded into a composite graph data structure. Corresponding image segments across the multiple video streams are also identified and represented by one node in the composite graph data structure. The composite graph data structure also includes links between pairs of nodes that describe the relationship between the image segments associated with those nodes. The composite graph data structure is updated to represent changes to the image segments in the multiple video streams over time. The composite graph data structure is used to create compressed encoded data for storage and / or transmission.
Owner:STMICROELECTRONICS SRL
Facial animation synthesizing method
ActiveCN103971394AInhibit synthesisEasy to implementAnimation3D-image renderingPersonalizationAnimation
A facial animation synthesizing method comprises the step of obtaining a facial front image on which the animation synthesis needs to be carried out, the step of carrying out three-dimensional human face model estimation based on the front image of the human face, the step of carrying out the front human face carton effect synthesis based on the facial feature analysis to obtain a front facial carton effect composite graph, the step of carrying out the multi-posture facial carton effect synthesis based on the human face three-dimensional model estimation and the front facial carton effect composite graph, the step of embedding the synthesized multi-posture facial carton effect synthesis in the preset animation video material to obtain the animation video of the human face cartoon effect. According to the facial animation synthesizing method, the traditional artificial animation creation of the facial carton effect is avoided, achieving is easy and fast, and different individuation requirements of different users can be met.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
Picture composition processing method, device and system
ActiveCN109308729AGuaranteed normalizationAvoid dependenceEditing/combining figures or textInformation processingComputer science
The embodiment of the application discloses a picture synthesis processing method, a device and a system, wherein, the system comprises: a first interface module for receiving a composition template file submitted by a composition template providing terminal; A template information processing module, configured to analyze the file, obtain display attribute information of a plurality of composite graph elements in the composite graph template, and store the display attribute information; The second interface module is configured to receive the composite graph request submitted by the material providing end and the material content submitted for the target composite graph template. The picture composition processing module is configured to associate the display attribute information for thematerial content by using the display attribute information of the corresponding composition element in the target composition template, and perform picture composition processing according to the material content and the display attribute information to obtain a composition result. As shown in that embodiment of the present application, the normalization of the resultant composite graph result can be ensured, and the dependence on manual audit can be avoided.
Owner:ALIBABA GRP HLDG LTD
Biometric subject verification based on electrocardiographic signals
A method of authenticating or declining to authenticate an asserted identity of a candidate-person. In an enrollment phase, a reference PQRST heart action graph is provided or constructed from information obtained from a plurality of graphs that resemble each other for a known reference person, using a first graph comparison metric. In a verification phase, a candidate-person asserts his / her identity and presents a plurality of his / her heart cycle graphs. If a sufficient number of the candidate-person's measured graphs resemble each other, a representative composite graph is constructed from the candidate-person's graphs and is compared with a composite reference graph, for the person whose identity is asserted, using a second graph comparison metric. When the second metric value lies in a selected range, the candidate-person's assertion of identity is accepted.
Owner:NASA
Tracking type ground light field 3D display method having super-large visual angle and tracking type ground light field 3D display system thereof
ActiveCN106507096ASimple structureNo mechanical movementSteroscopic systemsOptical elementsParallaxComputer graphics (images)
The invention provides a tracking type ground light field 3D display method having a super-large visual angle and a tracking type ground light field 3D display system thereof. The display method comprises the steps that S1. a composite graph used for 3D display is synthesized based on parallax images of a 3D scene; and S2. the composite graph corresponding to azimuth information is judged and displayed based on the azimuth information of an observer. According to the tracking type ground display 3D display method having the super-large visual angle, the field angle is enhanced to a great extent on the basis of ensuring high resolution so that the super-large visual angle can be realized. The display system has the advantages that the display system is simple in structure without scenario or other auxiliary optical devices, and the system has no mechanical motion and does not generate vibration, noise or jump.
Owner:BEIJING UNIV OF POSTS & TELECOMM
Pen interaction method and system based on handwriting input state adaptive judgment processing
ActiveCN104615367AEasy to operateFlexible interactionCharacter and pattern recognitionInput/output processes for data processingHandwritingGraphics
Provided is a pen interaction method based on handwriting input state adaptive judgment processing. In the process of carrying out hand-printed graphic inputting and hand-written character inputting by a user, the current input state of the user is automatically judged, real-time processing feedback is carried out, the user does not need to use a mouse or a keyboard or other interaction device to intervene, display state switching is not needed, and the interactive intention is expressed smoothly. The method defines the character input gesture, and the gesture not only differs from other basic graphs, but also has the ambiguous definition with the basic graphs forming the composite graph. The designed character input state judgment processing method and the note position judgment method can automatically judge the note input states and the note positions of the independent character object or the aiming symbol. The method can simplify the user operation procedures, the user can finish the pen interaction naturally and efficiently, certain universality and extendibility are achieved, and the method can be applied to the professional fields such as pen-interactive-based mechanical aided design and command and control.
Owner:NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
Logic processing apparatus and logic processing method for composite graphs in fixed layout document
ActiveUS20140337717A1Facilitate layout understandingAvoid logic errorsCharacter and pattern recognitionNatural language data processingGraphicsAlgorithm
A logic process apparatus for composite graphs in a fixed layout document is provided in this invention, comprising: a composite graph block extraction unit, for extracting composite graph blocks from the fixed layout document; a document parsing unit, for parsing the fixed layout document to obtain text primitives contained therein; a legend primitive extraction unit, for extracting legend primitives from the text primitives; a correlation detection unit, for detecting correlations between the composite graph blocks and the legend primitives; a correlation storage unit, for storing the detected correlations. A logic process method for composite graphs in a fixed layout document is also provided.
Owner:NEW FOUNDER HLDG DEV LLC +2
Information sending method and device for teaching system
InactiveCN105448150AGet feedbackThe number of failures is incremented by oneElectrical appliancesHandwritingComputer science
The invention discloses an information sending method and a device for a teaching system. The information sending method for the teaching system comprises the steps of obtaining the to-be-transmitted information, storing the to-be-transmitted information in a hard disk, generating UUIDs corresponding to the handwriting information, the original image information and the composite graph information contained in the above to-be-transmitted information respectively, recording the storage addresses of the handwriting information, the original image information and the composite graph information of the above to-be-transmitted information, sending the information, acquiring the information stored in the hard disk based on the storage addresses and the UUIDs on the condition that the information sending operation is failed, and sending the information again. According to the invention, when the information sending operation is failed, the information is sent again. Therefore, the repeated writing, circling and painting actions of a user are avoided, so that the user experience is improved.
Owner:TVM BEIJING EDUCATION SCI & TECH CO LTD
Face restoration method based on multi-channel attention selection generative adversarial network
ActiveCN111275638AEffective studyQuality improvementImage enhancementNeural architecturesPattern recognitionAlgorithm
The invention provides a face restoration method based on a multi-channel attention selection generative adversarial network. The method comprises the following steps of S1, collecting face data and performing preprocessing; s2, establishing a face restoration model and a loss function; s3, in the first stage, learning the image to generate a subnet Gi and preliminarily repairing the image; s4, inthe second stage, an intermediate output image IG is generated, and a multi-channel attention image IA is learned; s5, constructing a multi-channel attention selection model and outputting a final composite graph; s6, carrying out face restoration. Wherein the face restoration model comprises a generator network Gi, a parameter sharing discriminator D and a multi-channel attention selection network Ga, and the loss functions comprise an uncertainty pixel loss function and a resistance loss function. According to the face restoration method provided by the invention, the uncertainty graph is effectively learned to guide pixel loss, so that stronger optimization is realized, and a better face restoration method is provided.
Owner:HUNAN UNIV
Method and System for Business Outcome-Based Personalized Ranking of Information Objects
Methods and apparatus are provided for business outcome-based personalized ranking of information objects. Information objects in outcome-based business processes are ranked by recording information objects generated during a creation of the outcome-based business processes. At least one business process comprises an outcome attribute, and at least one business process comprises in-process information objects. A composite graph is generated of the information objects and business processes. Each node in the graph corresponds to an information object or a business process. Links between two of the information object nodes have a strength based on a content similarity and a social network distance. The in-process information object node connects to a corresponding business process node, and two business process nodes have a link if they are indicated as related in the business process information system. The information objects are ranked based on the link strengths (for example, in response to a query for a given user and a given business process).
Owner:IBM CORP
Full-reference stereoscopic image quality evaluation method based on saliency
ActiveCN107483918AStrong consistencyImprove performanceTelevision systemsVisual saliencyImaging quality
The invention relates to a full-reference stereoscopic image quality evaluation method based on saliency. The method comprises the following steps: for an original stereoscopic image and a distorted stereoscopic image, separately generating a composite graph according to the weight of the own left image and right image; separately performing visual saliency graph extraction for the left image, the right image and the composite graph of the original stereoscopic image; separately calculating color saliency components, frequency saliency components and location saliency components for the left image, the right image and the composite graph of the original stereoscopic image to obtain a final visual saliency graph; and taking the visual saliency graph energy as the weight, and merging the visual saliency graph of the left image, the right image and the composite graph of the original stereoscopic image with the structural similarity of the left image, the right image and the composite graph to obtain a final quality evaluation value by adopting a gain control method.
Owner:TIANJIN UNIV
Method for adjusting best viewing distance of naked eye 3D display
A method for adjusting the best viewing distance of a naked eye 3D display relates to the adjustment technology for the best viewing distance of the naked eye 3D display and solves problems that the increase amplitude of the best viewing distance is small, the cost is high and the adjustment is tedious in the conventional adjusting method. The method is characterized in that an angle [beta] of a derivative lens is firstly selected, wherein the derivative lens is a derivative lens of an original cylindrical lens, and the angle [beta] is required to guarantee acquisition of a clear 2D picture; then an arrangement mode of composite graphs in a player is adjusted according to the value of -[beta], a pixel arrangement sequence is adjusted into a reverse order, and a parallax graph reading sequence of the player is adjusted into a reverse order. With the adoption of the method provided by the invention, the best viewing distance of the naked eye 3D display can be doubled or further by adjustment while a lens with a variable focal length is not required, the cost is low, and the adjustment process is simple to operate. The method is suitable for adjusting the best viewing distance of the naked eye 3D display.
Owner:NINGBO VISION DISPLAY TECH
Rectangular spherical grating 4D picture
InactiveCN104122670AImprove accuracyAvoid submersionAdvertisingDisplay meansGratingComputer graphics (images)
The invention discloses a rectangular spherical grating 4D picture design method and random center dot printing technology, and provides a more comprehensive solution to the 4D picture design, processing and material problems. A 4D picture is composed of a rectangular spherical grating and a 4D composite graph, and can be classified into three types which are 360-degree stereoscopic image, an active stereoscopic image and an overturning stereoscopic image. A new type of product is provided for printing, stationery and especially ground advertising industries. Compared with a lenticular stereoscopic picture, the rectangular spherical grating 4D picture has a higher degree of freedom in the viewing direction, and has a prominent advantage of presenting an active stereoscopic image on one picture.
Owner:BEIJING KANGDEXIN 3D TECH
Cross-platform abnormal account identification method and device
ActiveCN109242515ARealize identificationRealize cold start recognitionPayment protocolsCommercePaymentE-commerce
The specification discloses a cross-platform abnormal account identification method and apparatus. The method comprises the following steps: identifying an abnormal account operator on an e-commerce platform; Constructing a payment account relationship diagram based on the fund transaction information of the abnormal account operator, wherein a node of the payment account relationship diagram is apayment account number of a payment platform; Constructing a platform account relationship diagram based on suspicious platform accounts in a target network platform, wherein a node of the platform account relationship diagram is the suspicious platform account; According to the binding relationship between the platform account number and the payment account number, combining the payment accountnumber relation diagram and the platform account number relation diagram to construct a comprehensive diagram; by using a graph propagation algorithm, identifying abnormal nodes in the composite graph, and identifying an abnormal platform account number for the target network platform.
Owner:ADVANCED NEW TECH CO LTD
View point synthesis method, device and equipment, and computer readable storage medium
PendingCN111951203ASolve technical problems with low computational efficiencyReduce computationImage enhancementImage analysisIntermediate imageComputer graphics (images)
The invention discloses a viewpoint synthesis method, device and equipment and a computer readable storage medium, and the method comprises the following steps: obtaining a plurality of input images,and inputting the input images to a compression resolution network, so as to carry out the compression resolution operation of the input images, and obtaining an intermediate image; inputting the intermediate image into a viewpoint synthesis network to obtain a viewpoint synthesis image; and inputting the viewpoint composite graph into a super-resolution network to perform resolution reconstruction operation on the viewpoint composite graph, and outputting a high-resolution target viewpoint composite graph, the compression resolution network being symmetrical with the network structure of thesuper-resolution network. According to the invention, the operand of viewpoint synthesis data is reduced by compressing the resolution network and the super-resolution network, so that the operand ofa computer system is reduced, the operation efficiency of the computer is improved, and the technical problem of low operand of viewpoint synthesis by the computer system is solved.
Owner:PEKING UNIV SHENZHEN GRADUATE SCHOOL
Method and device for generating face pinching data for user
PendingCN111553835AFree combinationReduce resource usageImage enhancementGeometric image transformationDatasheetAlgorithm
The purpose of the present invention is to provide a technique for generating face pinching data for a user, including the steps: after the user model is loaded, acquiring available face component data and parameters thereof for a user according to current face pinching data of the user and a pre-configured face data table, wherein the face component data at least comprises a face component map; according to the selection of the user in the face component data, combining with the parameters of the corresponding face part chartlets, synthesizing the selected first part chartlet with the corresponding first base map to obtain a first chartlet synthesis map, and synthesizing the selected second part chartlet with the corresponding second base map to obtain a second chartlet synthesis map; andloading the first chartlet composite graph and the second chartlet composite graph to the face pinching data of the user. Compared with the prior art, the method has the advantages that the face components can be freely combined in the face pinching process of the user, and meanwhile, the resource quantity occupied by the face components is greatly reduced.
Owner:SHANGHAI PERFECT WORLD SOFTWARE CO LTD
Figure virtual clothes changing method, terminal equipment and storage medium
PendingCN113436058AExtract full body featuresRealize Human Pose EstimationGeometric image transformationCharacter and pattern recognitionHuman bodyTerminal equipment
The invention relates to a figure virtual clothes changing method, terminal equipment and a storage medium, and the method comprises the steps: firstly carrying out the affine transformation of a human body image, obtaining a new image, feeding an original image and the new image into different pooling mechanisms and feature splicing mechanisms, extracting the whole body features of a human body from multiple aspects, and achieving the semantic segmentation of the human body; secondly, designing a human body posture heat map regression method based on a bounding box and Transform to assist the network in better realizing human body posture estimation, so as to relieve the influence of complex human body postures and character image overlapping on subsequent virtual clothes changing; then generating segmentation masks of clothes in the figure picture and a rough composite graph by using a generative model of the generative adversarial network; then, outputting a clothes picture conforming to the posture and figure information of a person through TPS thin plate spline transformation, and outputting a refined composite image through a full convolutional network, so that the composite image contains more clothes details; and finally, calculating and outputting a virtual clothes changing result by utilizing the matrix.
Owner:深圳市赛维网络科技有限公司 +1
Graphical generation method and device of industrial index component and electronic equipment
InactiveCN113703751ALower technical barriersMitigation requirementsIntelligent editorsVisual/graphical programmingData sourceComposite graph
The invention provides a graphical generation method and device of an industrial index component and electronic equipment, and the method comprises the steps: displaying a single graph making page according to a graph adding operation triggered by a user, wherein the single graph making page comprises a data source and a basic graph component; performing attribute configuration on the target basic chart component selected by the user through the target data source selected by the user to obtain a single chart index component; continuing to execute the chart adding operation in the page of the single chart index component to generate a plurality of chart index components in the page of the chart editor so as to obtain a composite chart index component; and packaging the composite chart index component to generate an industrial index component. According to the method, manufacturing of the industrial index component can be completed through the visual chart editor, the technical threshold for developing the industrial index component is greatly reduced, the process is simple and convenient, and reusability is high.
Owner:ROOTCLOUD TECH CO LTD
Composite graph cache management
ActiveUS8874682B2Digital data processing detailsDatabase distribution/replicationGraphicsData source
Methods, systems, and computer program products for synchronizing data between a mobile application and an enterprise data source are provided. A computer-implemented method may include receiving a request for data from an application executing on a mobile device, receiving a document including the requested data from a data source where the document represents a graph of data having a plurality of nodes, and providing a partial graph of data to the application where the partial graph is derived from the received document and at least includes the requested data.
Owner:SYBASE INC
Manufacturing method of dynamic Moire patterns for frame insertion and anti-counterfeiting in printing
InactiveCN106926599ASolve the problem of generating irregularitiesPromote popularizationPattern printingDiffraction gratingsGraphicsGrating
The invention discloses a manufacturing method of dynamic Moire patterns for frame insertion and anti-counterfeiting in printing. According to the method, a white and black grating sheet is designed, the frame insertion number n is worked out based on the characters of the grating sheet, n hidden black and white pictures are distributed at different positions of the grating sheet, grating processing is carried out on the n pictures sequentially, and then the n pictures are combined into a composite graph; and another grating sheet the same with the former grating sheet serves as a decoding grating sheet, the composite graph and the decoding grating sheet are placed in the same position, and the decoding grating sheet is moved at a uniform speed in the horizontal direction, so that a dynamic graph with the Moire patterns is obtained. The method provides theoretical bases for the hiding and anti-counterfeiting technology of dynamic Moire graphics and text information, the problem that generation of the dynamic Moire patterns is nonstandard currently is solved, and popularization of the dynamic Moire pattern anti-counterfeiting technology is facilitated.
Owner:SHAANXI UNIV OF SCI & TECH
Method and device for splitting violation composite graph, and computer storage medium
The invention provides a method and device for splitting a violation composite graph, and a computer storage medium. The method for splitting the violation composite graph comprises the steps: obtaining the violation composite graph; splitting the violation composite graph according to a preset row and column combination to obtain at least two sub-graphs arranged according to the preset row and column combination; determining a close-up graph and a position graph in the violation composite graph under a preset row and column combination, including: taking a sub-graph at a preset position in the preset row and column combination as a close-up sub-graph, and taking a sub-graph at a non-preset position as a position sub-graph; calculating the close-up difference degree of the close-up sub-graph and the position sub-graph, and obtaining the close-up difference degree corresponding to each preset position; and comparing the close-up difference degrees corresponding to all the preset positions, determining the sub-graph at the preset position corresponding to the maximum close-up difference degree as a close-up graph in the violation composite graph, and taking other sub-graphs as position graphs. According to the splitting method of the violation composite graph, autonomous violation penalty is realized.
Owner:ZHEJIANG DAHUA TECH CO LTD
Rendering image super-resolution texture enhancement method and device, equipment and storage medium
PendingCN112801878AReduce sizeSmall amount of calculationGeometric image transformation3D-image renderingComputer graphics (images)Image resolution
The invention provides a rendering image super-resolution texture enhancement method and device, equipment and a storage medium. The method comprises the steps: generating a rendering effect picture of a first resolution of a target scene; generating a non-illumination texture graph of a second resolution, a non-illumination normal graph with concave-convex textures of the second resolution and a rendering effect graph of the second resolution of the target scene, wherein the second resolution is greater than the first resolution; synthesizing the non-illumination texture graph of the second resolution and the non-illumination normal graph with the concave-convex texture of the second resolution into a composite graph according to a preset data combination algorithm; and reconstructing the rendering effect picture of the first resolution of the target scene into a rendering effect picture of a second resolution according to a super-resolution reconstruction algorithm and the composite picture. According to the invention, it is ensured that the low-resolution image is rendered into the high-resolution image, and meanwhile, the rendering time consumption and the calculation amount are reduced.
Owner:GUANGDONG SANWEIJIA INFORMATION TECH CO LTD
A Method for Calculating the Area of Combined Figures in Electronic Layout
ActiveCN107515962BRealize computingCalculate printing area with high efficiencyComputer aided designSpecial data processing applicationsGraphicsSoftware engineering
The invention discloses a method for calculating a composite graph area of an electronic layout. The method comprises the steps that the electronic layout is exported to be a GBR file in EDA software used for making the electronic layout; the GBR file is imported into CAM350 software; merging processing is performed on a border layer and a printing layer of the imported electronic layout file in the CAM350 software; a gap between the border layer and the printing layer of the file processed in the step c is filled up in the CAM350 software; a background layer and a filling layer of the file processed in the step d are separated in the CAM350 software; the file processed through the CAM350 software is exported to be a dxf file; the dxf file is imported into AUTOCAD software, and regions are created for the imported file in the AUTOCAD software; the regions are merged in the AUTOCAD software; and the AUTOCAD software is utilized to calculate the border area S1 and the area S2 of a region obtained after merging, and the composite graph area S of the electronic layout is obtained by subtracting S2 from S1. Through the method, calculation of the total area of a composite graph obtained after combination is realized; and printing area calculation efficiency is high, and calculation time can be substantially shortened.
Owner:NORTH ELECTRON RES INST ANHUI CO LTD
Method and processing device for producing product
PendingCN112698627AIncrease flexibilityFlexible processingSimulator controlForecastingProcess engineeringMachine
In order to improve the planning and implementation of product processing in a processing device, it is provided that the processing device (12) is modeled using a machine network graph (M), which models the processing device (12) as a network of processing nodes (1), and a product to be processed is modeled using a product composite graph (S), which models the processing device (12) as a network of processing nodes (1). The product composite graph (S) models a hierarchy of products in the form of a tree of product synthesis nodes (2). The machine network graph (M) and the product composite graph (S) are associated with each other on the basis of software to form a machining sequence (F) in that a machining node (1) of the machine network graph (M) is selected for each operating node (O) of the product composite graph (S), said machining node carrying out a machining process step to be carried out on the respective operating node (O). A processing sequence (F) is carried out by means of a device controller (11) in order to produce a product on the processing device (12).
Owner:B&R IND AUTOMATION GMBH
Phase Extraction Method of Digital Moire Fringe Combining Wavelet Analysis and Low-pass Filtering
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Synthesis method of human face animation
ActiveCN103971394BInhibit synthesisEasy to implementAnimation3D-image renderingSynthesis methodsAnimation
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
Method and System for Business Outcome-Based Personalized Ranking of Information Objects
Business outcome-based personalized ranking of information objects is provided. Information objects in outcome-based business processes are ranked by recording information objects generated during a creation of the outcome-based business processes. At least one business process comprises an outcome attribute, and at least one business process comprises in-process information objects. A composite graph is generated of the information objects and business processes. Each node in the graph corresponds to an information object or a business process. Links between two information object nodes have a strength based on a content similarity and a social network distance. The in-process information object node connects to a corresponding business process node, and two business process nodes have a link if they are indicated as related in the business process information system. The information objects are ranked based on the link strengths.
Owner:IBM CORP
Method for obtaining naked-eye 3D composite graph based on normalized infinite viewpoint
The invention discloses a method for obtaining a naked-eye 3D composite graph based on normalized infinite viewpoint, wherein the method comprises the steps: calculating a maximum parallax matrix anda normalized viewpoint matrix according to an input 2D image and a depth-of-field image; traversing the synthesized image pixel point, comparing the normalized viewpoint value of the synthesized imagepixel point with the reference viewpoint, and determining the virtual viewpoint as the left / right extension of the reference viewpoint; calculating the parallax coefficient of the pixel points of thesynthesized image according to the relationship between the normalized viewpoint matrix and the reference viewpoint; obtaining a maximum absolute value in the matrix according to the maximum parallaxmatrix; and carrying out region traversal on the 2D image according to the parallax coefficient, and carrying out pixel filling by adopting an addressing matching method to realize naked eye 3D composite image acquisition. According to the method, the synthetic graph for naked-eye 3D display is obtained by combining the normalized infinite viewpoint and inverse matching based on local traversal,so that the occupied space of an algorithm on a computer memory is reduced, and the processing speed is increased. The method can be effectively applied to a three-dimensional display in which a cylindrical lens array is not matched with pixels.
Owner:NANJING INST OF TECH
A method and device for sending information in a teaching system
InactiveCN105448150BGet feedbackThe number of failures is incremented by oneElectrical appliancesHandwritingComposite graph
The invention discloses an information sending method and a device for a teaching system. The information sending method for the teaching system comprises the steps of obtaining the to-be-transmitted information, storing the to-be-transmitted information in a hard disk, generating UUIDs corresponding to the handwriting information, the original image information and the composite graph information contained in the above to-be-transmitted information respectively, recording the storage addresses of the handwriting information, the original image information and the composite graph information of the above to-be-transmitted information, sending the information, acquiring the information stored in the hard disk based on the storage addresses and the UUIDs on the condition that the information sending operation is failed, and sending the information again. According to the invention, when the information sending operation is failed, the information is sent again. Therefore, the repeated writing, circling and painting actions of a user are avoided, so that the user experience is improved.
Owner:TVM BEIJING EDUCATION SCI & TECH CO LTD
Epitaxial Growth Method of Single Crystal Diamond Based on Iridium-Graphene Structured Buffer Layer
ActiveCN113373512BQuality improvementReduce stressPolycrystalline material growthFrom chemically reactive gasesThermal dilatationIridium
The invention discloses a single crystal diamond epitaxial growth method based on an iridium-graphene structured buffer layer, and belongs to the field of semiconductor material preparation. It is characterized in that: depositing an iridium film on diamond by magnetron sputtering, then periodically patterning the diamond / iridium laminate substrate, and then depositing a nickel film by magnetron sputtering to fill the non-patterned area Then, the diamond is vacuum annealed, so that the diamond undergoes a phase transition through nickel catalysis, and the carbon formed by the phase transition dissolves in the nickel and forms graphene on its surface. The iridium-graphene composite patterned structure is used to alleviate the lattice mismatch and thermal expansion mismatch between the substrate and the diamond, and then the chemical vapor deposition technology is used to accelerate the nucleation and expansion of the diamond under bias conditions. The epitaxial growth of single crystal diamond was realized under pressure conditions. The method can realize the preparation of large-scale and high-quality self-supporting single crystal diamond.
Owner:UNIV OF SCI & TECH BEIJING
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