Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

3794 results about "3D modeling" patented technology

In 3D computer graphics, 3D modeling is the process of developing a mathematical representation of any surface of an object (either inanimate or living) in three dimensions via specialized software. The product is called a 3D model. Someone who works with 3D models may be referred to as a 3D artist. It can be displayed as a two-dimensional image through a process called 3D rendering or used in a computer simulation of physical phenomena. The model can also be physically created using 3D printing devices.

Modeling method and system for three-dimensional real-time measurement reconstruction

PCT designated stage expiredWO2025107238A13D modellingFeature extractionImaging processing
A modeling method for three-dimensional real-time measurement reconstruction, comprising: on the basis of a three-dimensional camera, a laser radar, and an infrared sensor device, generating a multi-source original data set; performing data preprocessing; performing feature extraction and data fusion; performing three-dimensional space construction; by means of a deep machine learning algorithm, performing real-time dynamic adjustment and optimization on a model; and, by adopting an advanced image processing algorithm, generating a high-precision three-dimensional model.
Owner:GUANGDONG VISION FIELD ROBOTIC TECH CO LTD

Fine three-dimensional modeling method and system based on air-ground multi-source data fusion

The invention provides a fine three-dimensional modeling method and system based on air-ground multi-source data fusion, and the method comprises the steps: collecting data from three data sources: unmanned plane oblique photography, scanning point cloud data and panoramic video data, and carrying out the preprocessing of the data; according to the method, the advantages of different data sources are comprehensively utilized, the refined and full-coverage three-dimensional reconstruction of the target environment is realized, the multi-source data fusion is realized by utilizing the improved ICP algorithm to carry out precise registration, and finally, the modeling is carried out by utilizing the improved Poisson surface reconstruction algorithm. The problems of detail missing and incomplete coverage caused by a single data source in a complex building modeling process are solved; according to the invention, the multi-source data fusion technology can comprehensively capture the geometric morphology and detail features of the building in a complex scene, is suitable for complex scenes such as villages in cities and old buildings, and achieves all-around and detailed three-dimensional modeling.
Owner:GUANGDONG URBAN & RURAL PLANNING & DESIGN INST

Knowledge association learning method and system based on knowledge graph and virtual reality

The invention relates to the technical field of knowledge graph and virtual reality fusion, in particular to a knowledge association learning method and system based on a knowledge graph and virtual reality, and the method comprises the following steps: obtaining multi-source data including text data, image data, video data and three-dimensional model data; constructing an interdisciplinary knowledge graph based on the multi-source data; mapping the interdisciplinary knowledge graph into a virtual reality environment; generating a personalized learning path based on knowledge representation in a virtual reality environment; interactive knowledge exploration is realized in a virtual reality environment; updating the interdisciplinary knowledge graph based on the user interaction data; the virtual reality environment is synchronously updated to reflect the change of the interdisciplinary knowledge graph, and the understanding ability of a learner to complex concepts is greatly improved by visualizing an abstract knowledge structure in the virtual reality environment; and the learner can more easily find and understand the relation among different discipline knowledge.
Owner:JIANGXI MODERN POLYTECHNIC COLLEGE

Multi-unmanned aerial vehicle (UAV) cooperative coverage path planning methods based on improved ant colony algorithm with q-learning adaptive strategy

A system for UAV collaborative coverage path planning based on a Q-learning adaptive ant colony algorithm including a memory, an image collection device, and a plurality of UAVs loaded with a path planning module configured to: construct a 3D model in a collaborative coverage environment, by performing a cell division on the 3D model based on a scanning range of an airborne radar of each UAV, obtain one or more sub-regions; by establishing constraints of the UAV and the environment based on the determined 3D model of the region to be searched, establish a problem total cost model; perform a plurality of rounds of iterations, calculate a reward value of each ant colony and determine whether a maximum iteration count is reached, if the maximum iteration count is reached, enter a new round of iteration, otherwise, output a path corresponding to a current round of iteration as a final path.
Owner:ZHONGYUAN ENGINEERING COLLEGE

Digital twin three-dimensional scene modeling method based on webGPU

The invention discloses a digital twin three-dimensional scene modeling method based on a webGPU, and relates to the technical field of three-dimensional scene modeling and graphic computing, multi-source sensing data are asynchronously sampled from sparse point cloud, a video texture sequence, a scene semantic tag graph and a structure boundary tuple, and a six-dimensional structure unit group is generated through a normalization operator; constructing a structural unit atlas with nodes representing component entities and edges representing constraint relations, and introducing a tension balance mechanism and multi-scale constraints to generate a modeling path prior model; constructing a graph calculation and graph rendering dual-channel assembly line in the WebGPU, and executing parallel texture mapping and boundary fitting operation; a dynamic sensing module is used for capturing scene disturbance and driving atlas response, and incremental reconstruction of the model is achieved; and finally, mapping the model to a Web terminal, and supporting microscopic semantic query and multi-layer data linkage. According to the method, the response speed, semantic consistency and structural adaptability of three-dimensional modeling in a complex environment are improved.
Owner:ZHEJIANG ZHEFENG YUNZHI TECH CO LTD

AR-based intelligent integrated production line special circuit control method and system

The invention provides an AR-based intelligent integrated production line special circuit control method and system, and relates to the technical field of production line control, and the method comprises the steps: collecting a real-time point cloud model of production line equipment through AR glasses, and carrying out the registration of the real-time point cloud model and a preset three-dimensional model, and obtaining the state deviation data of the equipment; and analyzing an equipment operation trend by using a time sequence convolutional network, and generating an operation state evaluation index and a control parameter correction amount. A to-be-adjusted circuit control node is projected and displayed in the AR glasses, a control instruction is generated according to eye movement tracking and gesture interaction operation of an operator, and a control model is formed by recording a corresponding relation between the instruction and an operation state evaluation index. And based on the model, an AR auxiliary control system is constructed by an edge calculation unit, a control instruction is generated through graph neural network reasoning according to a new operation state evaluation index, and operation guide information is displayed on an AR interface. And after the operator confirms, an instruction is issued to a production line controller, and an execution result is fed back to update the control model, so that closed-loop control is realized.
Owner:JIANGSU NJSTAR NEW ENERGY TECH CO LTD

System and method for generating three-dimensional model from virtual reality / augmented reality three-dimensional sketch, processing system for three-dimensional model, editing method, and diffusion model training method

Provided are a processing system for a three-dimensional model, a method for obtaining a physical model on the basis of three-dimensional printing of a three-dimensional processing system, a system for generating a three-dimensional model from a virtual reality / augmented reality three-dimensional sketch, a diffusion model training method, and a method for editing a three-dimensional model on the basis of a virtual reality / augmented reality three-dimensional sketch. The method for obtaining a physical model on the basis of three-dimensional printing of a three-dimensional processing system comprises: step one, at an input apparatus, a user using a hand or a handle to draw three-dimensional sketch content in the air, wherein a three-dimensional sketch is stored in the form of a three-dimensional point cloud, and when the user draws a trajectory, a corresponding point cloud is generated in the drawn trajectory and is displayed in a three-dimensional virtual space in a highlighted manner, and displacement and deletion operations of the user for the three-dimensional sketch are overall displacement and deletion operations for points in a region corresponding to the point cloud of the three-dimensional sketch; step two, a computing apparatus converting the three-dimensional sketch content into a three-dimensional model; step three, converting the three-dimensional model into a readable file for an execution apparatus, wherein the conversion is implemented by using a slicing algorithm; and step four, a three-dimensional printer executing the readable file to perform a printing operation, so as to obtain a physical model.
Owner:MOXIN (HUZHOU) TECH CO LTD

Three-dimensional data visualization rendering method and visualization rendering engine system

The invention relates to the technical field of visual rendering, and provides a three-dimensional data visual rendering method and a visual rendering engine system.The method comprises the steps that space segmentation processing is conducted on three-dimensional model data to be rendered through the LOD technology to generate block slice data with different geometric detail levels, organizing the block slice data through a tree structure with a spatial relationship, and outputting the tree structure as an index file; the method comprises the following steps: adaptively screening block and slice data of different levels of detail based on a user vision field range, storing the block and slice data into a rendering request queue, querying block and slice data to be rendered from the rendering request queue according to index codes of the block and slice data, and updating a layer browser database; according to the method, to-be-rendered block slice data are downloaded and analyzed in parallel in batches in a separated collaborative operation mode, and a rendering task is executed according to a data analysis result, so that the rendering scheduling frame rate is remarkably improved, and rapid visualization of urban mass three-dimensional slice data at a webpage end is realized.
Owner:INTERSTELLAR SPACE (TIANJIN) TECH DEV CO LTD

Method for obtaining three-dimensional model by means of photographing, method for obtaining picture by means of three-dimensional model, part machining method, and 3D printer

PCT designated stage expiredWO2025021234A1Steroscopic systemsPattern recognitionRgb image
Provided in the present invention are an interaction and generation method for obtaining a three-dimensional model by means of photographing, a method for obtaining a picture by means of a three-dimensional model, and a part machining and manufacturing method. The interaction and generation method comprises: a user using a terminal to capture scene information, wherein the scene information can be an outdoor or indoor scene, the terminal can be a smart phone, an AR / VR device or other smart terminals having a photographic function, and the captured scene information is RGB and / or RGBD (including depth) information; and sending an RGB image and / or RGBD image I to a monocular three-dimensional reconstruction algorithm, so as to obtain a corresponding three-dimensional model, which can be displayed on an interaction interface and superimposed with a real scene, or can be displayed on a single page.
Owner:MOXIN (HUZHOU) TECH CO LTD

Three-dimensional modeling processing method based on unmanned aerial vehicle oblique photography

The invention provides a three-dimensional modeling processing method based on unmanned aerial vehicle oblique photography. The method is applied to the technical field of three-dimensional modeling, and comprises the following steps: obtaining a serialized image set containing geographical coordinate information according to original image data collected by an oblique photography camera carried by a multi-rotor unmanned aerial vehicle; according to time-space synchronization parameters of the serialized image set, determining a multi-view image matching relation matrix with an overlapping degree quantitative index; determining mixed three-dimensional point cloud data fusing sparse point cloud and dense point cloud according to geometric constraint conditions of the multi-view image matching relation matrix; determining an initial three-dimensional grid model with multi-level details according to the topological connection relationship of the mixed three-dimensional point cloud data; and determining an optimized three-dimensional model based on adaptive texture mapping according to the surface curvature distribution characteristics of the initial three-dimensional mesh model. In this way, the efficiency of three-dimensional modeling can be improved.
Owner:HENAN WEITU INFORMATION TECH CO LTD

Tablet computer image super-resolution enhancement method based on generative adversarial network

The invention relates to the technical field of image super-resolution enhancement, in particular to a tablet computer image super-resolution enhancement method based on a generative adversarial network. The method comprises the following steps: collecting an image through a tablet computer, and carrying out regional illumination component calculation on the image to obtain detailed illumination component data; secondly, quantizing the motion out-of-focus fuzzy degree based on the illumination data, generating track fuzzy intensity sensing data, performing 3D modeling by combining the data, and estimating the distortion trend of the image; then, a shooting error is eliminated by using rendering visual angle distortion correction, a more real visual angle effect is generated, and super-resolution enhancement is performed on the image by using a generative adversarial network, and image details are improved. And finally, designing automatic firmware based on the super-resolution enhanced data, and embedding the automatic firmware into a tablet computer control system. According to the method, the image super-resolution enhancement technology is optimized, so that the image super-resolution enhancement technology is more perfect.
Owner:GUANGDONG OUDULIFANG TECH CO LTD

Game animation character display method based on virtual reality technology

The invention provides a game cartoon character display method based on a virtual reality technology. The method comprises the following steps: acquiring three-dimensional model data of a game cartoon character in a target display area through a user interaction terminal; the virtual reality content management platform determines a dynamic rendering precision level according to the model data, and generates a real-time rendering strategy including a model patch reduction coefficient, a texture compression rate and a skeleton animation updating frequency in combination with terminal performance parameters; the strategy is sent to a virtual reality supervision platform and a user interaction terminal, and a virtual reality rendering engine platform is instructed to execute real-time rendering; and the virtual reality supervision platform monitors the frame rate fluctuation data of the head-mounted display device, calculates the scene rendering stability, sends a rendering optimization instruction if the scene rendering stability is lower than a threshold value, and adjusts the model data acquisition frequency and the video memory cleaning period to optimize the performance. The rendering efficiency and the system stability can be improved, and the hardware load and the frame rate fluctuation are reduced.
Owner:JIANGSU JIUQU INTERACTIVE ENTERTAINMENT NETWORK TECHNOLOGY CO LTD

Automated aerial data capture for 3D modeling of unknown objects in unknown environments

System and method are disclosed for multi-phase process of automated data capture for photogrammetry and 3D model building of an unknown object (311) in an unknown environment. Planner module (152) generates a flight plan (413) for a camera drone (110) to fly autonomously on a flight path along a virtual polygon grid (302) defined above the target object (311) during a survey phase. Model builder computer (153) receives a point cloud dataset (321) captured by LiDAR sensor on camera drone (301) during survey flight and constructs low resolution 3D mesh (331) of the target object (311). Planner module (152) generates a flight path (413) for camera drone inspection phase with virtual waypoints surrounding the target object (311) at a marginal distance from the surface defined by the low resolution 3D mesh (331). Model builder (153, 163) builds a high resolution 3D model (422) of the target object (311) using photogrammetry processing of high resolution images captured by camera drone (411, 412) during inspection phase.
Owner:SIEMENS CORP

Pipe gallery pipeline key connection point leakage monitoring system and method based on AI vision

The invention relates to the field of computer vision and industrial safety monitoring, and discloses a pipe gallery pipeline key connection point leakage monitoring system and method based on AI vision, and the system comprises a data collection module, an intelligent analysis module, a 3D modeling module, a space-time verification module and an alarm prediction module. Real-time detection and three-dimensional accurate positioning of a leakage area are realized in combination with neural network optimization driven by physical simulation parameters; further through optical flow tracking and fluid mechanics verification, false alarm events of non-physical rules are screened out; and based on Bayesian decision and diffusion equation prediction, generating a leakage risk heat map and triggering graded alarm. The method solves the technical problems of low leakage detection precision, high false alarm rate and inaccurate positioning in a complex pipe gallery scene, has the advantages of high environmental adaptability, high anti-interference capability and prospective risk pre-judgment, and is suitable for intelligent safety monitoring of underground pipe galleries and petrochemical engineering pipelines.
Owner:天津东方泰瑞科技有限公司 +2

Gas coal mine goaf coupling disaster monitoring method, electronic device and storage medium

The invention relates to the technical field of coal mine disaster monitoring, in particular to a gas coal mine goaf coupling disaster monitoring method, an electronic device and a storage medium, and the gas coal mine goaf coupling disaster monitoring method comprises the following steps: obtaining comprehensive data of a goaf through a sensor network, and carrying out data preprocessing to obtain standardized data; constructing a digital twinborn model through a 3D modeling and geographic information system technology; performing data synchronization and model correction processing on the digital twinborn model, and optimizing parameters and states of the digital twinborn model; constructing a fluid-solid-heat multi-field coupling model through a computational fluid mechanics and finite element analysis method; constructing a risk assessment model through an analytic hierarchy process and a fuzzy comprehensive evaluation method; training a disaster early warning model by using a machine learning algorithm based on the standardized data and the risk assessment model; a digital twinborn model, standardized data, a risk assessment model and a disaster early warning model are integrated, and a visual interaction platform is constructed. According to the monitoring method, multiple disaster elements can be coupled and dynamically evolved, and the disaster prediction accuracy and timeliness are greatly improved.
Owner:ZHEJIANG SCI-TECH UNIV

Space engine 3D printing deformation compensation method

The invention discloses an airspace engine 3D printing deformation compensation method. The method comprises the following steps that S1, a three-dimensional CAD model is constructed, and a printing layer set is generated; s2, obtaining residual stress tensor fields of the current printing layer and the historical printing layer; s3, constructing a stress shadow mapping tensor; s4, inputting the stress shadow mapping tensor and the current printing layer parameter into the reverse stress propagation neural network model, and outputting a deformation prediction vector field; s5, performing geometric compensation processing on the geometric area of the printing layer according to the deformation prediction vector field; s6, generating a printing code according to the compensated geometric model; and S7, carrying out error comparison on the actual deformation vector field and the overall prediction deformation vector field, if the error is greater than a preset tolerance threshold value, feeding back error information to the step S5, and repeatedly executing the steps S5 to S7 until the error vector field does not exceed the tolerance threshold value. According to the method, residual stress modeling and the reverse stress propagation neural network are fused, and 3D printing deformation compensation of the airspace engine is achieved.
Owner:SHENYANG DUWEI TECH DEV CO LTD

Air-land integrated bridge disease monitoring method and application system thereof

The invention relates to an air-ground integrated bridge disease monitoring method and an application system thereof, and the method comprises the steps: controlling an unmanned plane to take off from a nest, and transmitting a bridge initial inspection task to the unmanned plane; sending the bridge image data to a vehicle-mounted high-performance edge server for primary three-dimensional modeling; carrying out monomer splitting on the general three-dimensional model of the bridge, and carrying out close photogrammetry on the bridge by an unmanned aerial vehicle based on a close inspection route to obtain a monomer high-resolution image of each part of the bridge; the unmanned aerial vehicle automatic inspection and data processing platform executes disease target detection and disease semantic segmentation on the single high-resolution images; and associating and binding disease target detection and disease semantic segmentation results with the bridge refined three-dimensional model to generate a bridge disease detection report. A worker only needs to draw an inspection area, and the unmanned aerial vehicle automatic inspection and data processing platform automatically generates an unmanned aerial vehicle inspection route according to the drawn inspection area, so that the unmanned aerial vehicle autonomously and safely inspects a bridge.
Owner:GUANGXI COMPREHENSIVE TRANSPORTATION BIG DATA RES INST +1

Panoramic image three-dimensional reconstruction method based on 3DGS

The invention provides a panoramic image three-dimensional reconstruction method based on 3DGS, and relates to the technical field of computer vision and image processing, and the method comprises the steps: 1, collecting a panoramic image sequence of a to-be-reconstructed scene, carrying out the unified coding through equidistant cylindrical projection, and obtaining a coding data set; and step 2, executing panoramic motion recovery structure processing on the coded data set, and generating six-degree-of-freedom camera pose parameters of each image and a corresponding sparse three-dimensional point cloud. According to the invention, high-precision and high-efficiency panoramic scene three-dimensional reconstruction is realized, a high-quality panoramic image or a dense three-dimensional model can be output, and the three-dimensional reconstruction quality and efficiency are improved.
Owner:LANJIAN (SUZHOU) TECH CO LTD

Texture mapping method and apparatus based on three-dimensional face reconstruction, device and storage medium

The present application relates to the technical field of image processing. Disclosed are a texture mapping method and apparatus based on three-dimensional (3D) face reconstruction, a device and a storage medium. The method comprises: registering a standard 3DMM model with a 3D grid model, and performing region division on the 3D grid model; obtaining a texture image of a target object, and matching 2D face key points of the texture image with 3D face key points of the registered 3DMM model to obtain head posture information of the texture image; and on the basis of whether the head posture information meets preset requirements or not, determining whether to use the texture image for mapping. According to the technical solution, a standard 3DMM model is used to perform region division on a 3D grid model of a target object, and on the basis of head posture information of texture images, a texture image with the head posture meeting preset requirements is selected to perform mapping processing on a corresponding region, thereby making the texture of the mapping more consistent, and constructing a 3D face model having a better visual effect.
Owner:SHENZHEN ORBBEC CO LTD

Three-dimensional model editing method and device based on multiple modes, equipment and medium

The invention relates to the technical field of computers, in particular to a multi-mode-based three-dimensional model editing method and device, equipment and a medium. The method comprises the following steps: acquiring a multi-modal fusion image personalized generation method and a source three-dimensional model; obtaining a personalized image generation network corresponding to the source three-dimensional model, and training the personalized image generation network; based on the reference image list and the corresponding text description, multi-modal embedded information is obtained after fusion; taking the trained personalized image generation network as a skeleton, and adding a multi-personalized learning module to obtain a multi-personalized image editing network; and editing the source three-dimensional scene image according to the multi-modal embedded information by using a multi-personalized image editing network to obtain a single-view-angle edited image. The multi-mode embedded information generated by the method allows a user to input prompt information of multiple modes such as texts, images, sketches and the like, complementarity of prompt of each mode is mined, so that controllability of editing is improved, and high-quality three-dimensional model editing is realized.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Subgrade graded filling construction settlement prediction method and system

The invention discloses a subgrade graded filling construction settlement prediction method and system, and relates to the technical field of subgrade construction.The subgrade graded filling construction settlement prediction system comprises a data sensing module, an edge calculation module, a central processor, an emergency decision module and a digital twinborn platform; non-linear working condition classification is carried out through an edge calculation module, complex working conditions are effectively identified, and the accuracy of working condition classification is improved; a mechanism that environmental factors indirectly influence settlement is disclosed through a central processor, the synergistic effect of environmental and geological factors is captured, then a hybrid prediction model is established to achieve quantitative evaluation of the roadbed filling state, and the adaptability to complex working conditions is improved; and then dynamic balance of settlement control and resource allocation is realized through an emergency decision module, visual support is provided for construction management through digital twinning and 3D modeling, decision efficiency and transparency are improved, and the method has important engineering application value and technical leading.
Owner:JIANGSU MODERN SHUNING ENGINEERING CONSTRUCTION CO LTD

Real-time online detection method and system for fruit appearance defects

The invention discloses a fruit appearance defect real-time online detection method and system, and relates to the technical field of image processing, and the system comprises an image capture module, a feature extraction and analysis module, a 3D reconstruction module, a dynamic segmentation module, a defect quantification and grading module, and a topology analysis and detection module. According to the real-time online detection method and system for the fruit appearance defects, the defects of a traditional method in the aspects of detection precision, classification fineness and environmental adaptability are overcome by combining a plurality of processes of multispectral image capture, hierarchical feature extraction, high-dimensional clustering analysis, 3D modeling, defect quantitative evaluation and the like. The system can accurately identify various defect types on the surface of the fruit in real time in a complex detection environment and quantify the severity of the defect types. Compared with the prior art, the system has the advantages that the accuracy, the stability and the real-time performance of defect detection are remarkably improved, an intelligent solution is provided for automatic sorting and quality control of fruits, and meanwhile, the labor cost is reduced.
Owner:SHAANXI FRUIT IND TECH GRP CO LTD

Virtuality and reality combined display system for element universe museum

The invention discloses a virtuality and reality combined display system of a universe museum, and relates to the field of universe technology and museum display technology, the system comprises a data acquisition module, a data analysis and user portrait module, a personalized guide planning module, a virtuality and reality combined display module and a feedback and optimization module; according to the system, user information and cultural relic data are comprehensively and meticulously collected through the data acquisition module, a basis is provided for subsequent personalized display and guide planning, and the data analysis and user portrait module digs potential demands and interests of users, so that displayed contents can accurately match preferences of the users, and the user experience is improved. The virtual-reality combined display module constructs a virtual cultural relic model by using a 3D modeling and rendering technology, realizes seamless joint with an entity exhibit through an AR technology, brings immersive visiting experience to the user, and in addition, due to the existence of the feedback and optimization module, the system can continuously collect user feedback, so that the user experience is improved. And display contents and functions are continuously optimized and perfected.
Owner:XUZHOU COLLEGE OF INDAL TECH

Luggage automatic identification method and device based on vision and three-dimensional modeling, medium and product

The invention discloses a visual and three-dimensional modeling luggage automatic identification method, equipment, a medium and a product. The method comprises the following steps: firstly, carrying out dynamic multi-view scanning on luggage entering a scanning area of a conveyor belt to obtain a multi-view image, carrying out deep learning to obtain three-dimensional point cloud data, and fusing the three-dimensional point cloud data with X-ray transmission density data to form a preliminary three-dimensional model; whether the model is complete or not is judged by combining geometric closure and material density continuity, and if not, features are extracted through an adversarial generative network, and occlusion area point cloud data are predicted for complementation; and finally, matching the complementation model features with a dangerous goods feature library, and judging whether the dangerous goods are dangerous goods or not. By implementing the technical scheme provided by the invention, the information of the articles in the luggage can be comprehensively obtained, the complete and accurate three-dimensional model can be constructed, whether the articles are dangerous articles or not can be efficiently and accurately judged, and the efficiency and the safety of aviation security inspection are improved.
Owner:ZHONGJIA JINCHENG (BEIJING) TECHNOLOGY CO LTD

Intelligent simulation system for Lyocell fiber production line based on digital twinning

The invention relates to the technical field of digital twinning simulation, and discloses a digital twinning-based intelligent simulation system for a lyocell fiber production line, and the system comprises a 3D modeling and digital twinning module which constructs a three-dimensional model of the lyocell fiber production line, associates the three-dimensional model with real-time production data, and finally forms a three-dimensional digital twinning model of the production line; the key equipment state prediction module predicts the residual life of the film evaporator according to the vibration data of the film evaporator; the energy consumption prediction module is used for obtaining key parameters of the glue making process and predicting an energy consumption value according to the process list of the lyocell fiber glue making process; the early warning module is used for early warning in an equipment model corresponding to the target film evaporator in the three-dimensional digital twin model according to the residual life prediction result; and the process management module is responsible for compiling, managing and issuing process files. According to the system disclosed by the invention, all the functional modules are fused and combined together to form a complete system, so that the system is of great significance in guiding lyocell production and can help enterprises to carry out better cost control.
Owner:YIBIN GRACE GROUP CO LTD +1

Dynamic three-dimensional reconstruction method based on incremental updating

The invention discloses a dynamic three-dimensional reconstruction method based on incremental updating, which belongs to the field of image data processing, and comprises the following steps: acquiring a forestry scene multi-view image to be reconstructed to form an initial data set D0; constructing an initial three-dimensional scene model of the forestry scene based on D0 and 3DGS methods; monitoring a forestry scene to construct an incremental data set Dt of the tth change; during each incremental learning, the previous incremental model is divided into a change area and a non-change area, and the incremental model of the tth incremental learning is obtained by optimizing the change area and the non-change area and constructing a new scene model and is used for image rendering. According to the method, full-scene reconstruction is avoided, and the accuracy of the three-dimensional model can be ensured while the efficiency of three-dimensional reconstruction in a dynamic environment is remarkably improved. And the scene can be updated only by adding a small number of view angle images, so that the cost and time of data acquisition are greatly reduced, and the method is particularly suitable for large-scale monitoring of forestry and the like and scenes needing long-term monitoring and real-time updating.
Owner:SHENZHEN SENSING DATA TECH CO LTD

Liver focus three-dimensional modeling method

The invention provides a liver focus three-dimensional modeling method, and belongs to the technical field of image processing based on computer vision. Firstly, a multi-view spatial registration method based on optical flow optimization is designed, pixel-level displacement information of different view images is estimated by calculating an optical flow field, accurate image alignment is achieved, and spatial consistency of three-dimensional reconstruction is improved. And secondly, a three-dimensional reconstruction strategy based on two-dimensional focus segmentation is proposed, the two-dimensional focus segmentation is completed by adopting a lightweight U-Net variant, and a segmentation result is mapped to a three-dimensional space through a voxel probability projection method, so that 3D focus reconstruction is realized, and the calculation cost is reduced. And finally, extracting high-frequency features of the three-dimensional model by adopting a local edge enhancement method based on a Laplacian operator, and strengthening a focus boundary and a key anatomical structure through interpolation optimization, so that the three-dimensional model is more accurate and clearer. Compared with a traditional method, the method has the advantages that the mode of purely depending on image superposition is avoided, and the accuracy of three-dimensional modeling is improved.
Owner:QINGDAO MUHUA DATA TECHNOLOGY CO LTD

Simulation optimization method for digital twin factory

The invention discloses a simulation optimization method for a digital twin factory. The simulation optimization method comprises the steps of obtaining workshop equipment data and performing classified storage; generating a task priority and resource configuration rule based on the basic operation data of the equipment; constructing a three-dimensional space model by using a 3D modeling tool, and creating a digital twinborn simulation factory model in combination with real-time production data; constructing a dynamic planning state space and a decision variable, and determining the resource use time, the resource allocation position and the specific quantity of each task; according to the resource allocation scheme and the task chain dependency relationship, evaluating a risk value of a task node in combination with historical equipment fault data; and based on the influence range report of the production fault chain, evaluating a task execution sequence and adjusting resource allocation and task time arrangement. According to the method, the influence of faults on a production plan and resource waste are reduced, the stability and adaptability of a factory system are remarkably enhanced, and the reliability and fine management level of overall production are improved.
Owner:GUANGZHOU YUNSHI NETWORK TECH CO LTD

Building engineering construction process safety management method and device

The invention relates to a building engineering construction process safety management method comprising the following steps: obtaining construction site data of building engineering, and building a three-dimensional model of a construction site based on the construction site data; classifying objects of the construction site in the three-dimensional model to obtain dynamic objects and static objects, and obtaining safety management measures based on the analysis result; performing visual simulation on the safety management measures by using a digital twinborn technology to obtain a simulation result; acquiring a safety management criterion, evaluating the simulation result based on the safety management criterion to obtain a simulation evaluation result, and if the simulation evaluation result does not meet the safety management criterion, performing iterative optimization on the safety management measure until the simulation evaluation result meets the safety management criterion; potential safety hazards caused by the fact that the real-time state of a construction site cannot be comprehensively mastered and dynamic changes are difficult to accurately predict and control are solved.
Owner:SHENZHEN DOCTOR MA NETWORK TECH CO LTD