124 results about "Digital reconstruction" patented technology

The invention discloses a digital human rendering method based on Gaussian splashing and multi-scale characteristic field distillation, and belongs to the field of three-dimensional human body digital reconstruction. According to the method, feature extraction is carried out through a Vision Transformer encoder, based on an SMPL model, through a cross-modal parameter estimation module and dynamic human body modeling of three-dimensional Gaussian splashing and semantic feature rendering, three-dimensional Gaussian is projected to a two-dimensional image plane to calculate a covariance matrix and color mixing, and after a rendered color image and an initial feature field image are output, a three-dimensional image is obtained. A student feature map is obtained through a convolution acceleration module, a teacher feature map is obtained after feature extraction is carried out through a two-dimensional basic model, the constructed model is trained, and optimization training is completed through comprehensive total loss function calculation; according to the method, the problems of fuzzy semantics, detail missing, low rendering efficiency and inaccurate human body-scene separation in the existing method are effectively solved, so that more efficient, fine and robust monocular or multi-view human body three-dimensional reconstruction is realized.

The invention belongs to the technical field of customer service, and particularly relates to an intelligent customer service practical training system and method, and the system comprises a business scene digital reconstruction layer which is used for constructing a business training scene to form a training scene library, managing the business training scene library, and reconstructing a training scene according to scene configuration data; the AI simulation interaction core layer is used for receiving and recognizing voice and text input of students and generating behavior strategies of AI partner training according to input content on the basis of a current training scene; the training execution layer is used for generating scene configuration data according to a student selection instruction and sending the scene configuration data to the business scene digital reconstruction layer, and the scene configuration data content comprises a training scene, training difficulty and role setting; the training difficulty is dynamically adjusted according to the real-time performance of the trainee; and the quantitative evaluation layer is used for performing multi-dimensional analysis on the training data and generating a quantitative evaluation result and an improvement suggestion. The problems that existing customer service training is low in efficiency and high in cost are solved.

The invention discloses a 3D GS cultural relic digital reconstruction method and system based on a block chain, and the method comprises the steps: collecting the RGB image data and depth perception data of a cultural relic, eliminating the influence of different shooting conditions through an illumination separation processing technology, and building a standardized image data set; recognizing a surface area suitable for reconstruction based on image analysis, determining feature point distribution by using kernel density estimation, and generating initial three-dimensional representation through Gaussian ellipsoid fitting; performing gradient calculation and feature extraction on the depth data, and combining with Gaussian representation to form a geometric constraint mechanism; self-adaptive encryption based on visual importance is executed for a sparse region, and a layered rendering effect is achieved through opacity parameter adjustment; the rendering characteristics and the conversion relation of different view angles are analyzed, key observation points are determined through stability analysis, and a smooth multi-view-angle display sequence is constructed; and integrating multi-view rendering information to generate volumetric representation, and completing right confirmation of the high-quality three-dimensional digital model through digital signature.

The invention relates to the technical field of factory visualization, in particular to an intelligent factory production visualization method and system based on digital twinning, and aims to automatically construct a three-dimensional space model of factory production line layout and equipment structure by fusing laser point cloud and image data and replace manual labeling to realize digital reconstruction of a physical workshop. A deep learning model is utilized to analyze product paths and state changes, exposed nodes are identified, associated equipment is reasoned, intelligent division of the equipment is completed, and manual modeling work is reduced. The behavior rhythm characteristics of the operation parameters are extracted and compared with the historical modes of the equipment sub-models, the rhythm similarity matrix is automatically constructed, the parameter binding relation is determined, and tedious manual configuration is avoided. The scheme has good flexibility and self-adaptive ability, the model can be quickly updated after process change or equipment replacement, it is guaranteed that the digital twin system is synchronous with the actual factory state, and efficient deployment and visual updating are achieved.

The invention provides a parallel battlefield environment construction method and system based on digital twinning. The method comprises the steps that a laser echo set reflected by the earth surface is obtained; aggregating the intensity characteristic of each laser echo in the laser echo set and the time difference between the departure time and the arrival time of each laser echo, and generating point cloud data; performing space coordinate association on a three-dimensional elevation model constructed based on the point cloud data and a preset battlefield terrain material feature map to generate a battlefield comprehensive terrain entity grid; performing spatial feature analysis on the battlefield comprehensive terrain entity grid to generate a dynamic threat distribution representation; performing spatio-temporal evolution deduction on the dynamic threat distribution representation to generate enemy unit maneuvering path prediction data; and inputting the enemy unit maneuvering path prediction data into a preset digital twinborn battlefield environment to drive the preset digital twinborn battlefield environment to dynamically update. According to the invention, accurate digital reconstruction of the complex battlefield terrain is realized, and a real-time and high-confidence battlefield situation deduction platform is provided for command decision.

A method including acquiring a hand movement video obtained by capturing images during a process in which a target user rotates a wrist joint from a first angle to a second angle while maintaining a hand posture with five fingers naturally extended, so that the hand movement video comprises a plurality of image content frames captured during a rotation process of the hand from a front / side view to a side / front view; acquiring curvature information of the fingers and / or nails from the plurality of image content frames acquired during the rotation process; and creating a 3D hand model of the target user based on the hand movement video, and optimizing key point parameters of the fingers and / or nails in the 3D hand model based on the curvature information of the fingers and / or nails. The present disclosure enables digital reconstruction of the hand and improve the reconstruction accuracy of the hand.

The invention discloses an AR digital reconstruction and visual navigation system and method for an agricultural cultural heritage scene. The system comprises a digital modeling module, a scene recognition module, an AR reconstruction module, a path navigation module and an interactive navigation module. According to the invention, by fusing laser point cloud, unmanned aerial vehicle images and historical images, agricultural cultural heritage scenes such as rice terraces, mulberry-based fish ponds, waterwheel irrigation systems and the like with extremely high local characteristics are reconstructed, historical scenes in which natural or human factors disappear are recovered, and AR live-action is superposed with virtual farming behaviors, traditional festival activities and clothing styles and features, so that the real-scene and real-scene virtual farming is realized. A user can experience thousand years of agricultural culture personally on the scene, the visiting experience that the user cannot understand and cannot see completely in the past is changed, an exclusive route is planned for the user, various interaction modes such as voice, images and gestures are supported, and the method is suitable for users of different age groups, language backgrounds and cultural cognition levels.

The invention discloses a portable X-ray back scattering security check system based on AI image enhancement. The system belongs to the technical field of radiation imaging, and comprises a sensing unit used for sensing physical situation information in an imaging process so as to generate time-sequenced physical prior data; the prediction unit is used for predicting a future scanning behavior based on the physical prior data to generate a feed-forward control instruction and prediction confidence; the regulation and control unit is used for adaptively regulating and controlling scanning parameters based on the feedforward control instruction and recording execution information including regulation and control residual errors; and the AI reconstruction processor is used for performing enhanced reconstruction on the original X-ray image based on the physical priori data, the prediction confidence and the execution information. By constructing an intelligent closed loop of perception, prediction, regulation and control and reconstruction, physical uncertainty information in the imaging process is quantized and used for guiding AI reconstruction, so that the problem of information fault between physical acquisition and digital reconstruction is solved, and the quality and reliability of a final image are improved.

The invention discloses a three-dimensional point cloud-based power distribution network digital reconstruction method, which comprises the following steps of: automatically acquiring high-precision point cloud and image data of a power distribution network site through an unmanned aerial vehicle, and eliminating noise points, simplifying data volume and improving data quality in combination with a gross error elimination algorithm and a voxel filtering technology; a pyramid type hierarchical storage and octree indexing technology is utilized to realize regional management and rapid space retrieval of massive point clouds; and performing automatic semantic classification on the point cloud based on a PointNet deep learning algorithm, performing high-precision alignment on a classification result and a real scene in combination with a homonymy matching method, and constructing a real and restored power distribution network field three-dimensional working condition model. According to the method, the problems of low field investigation efficiency and incomplete information of a traditional power distribution network are solved, digital and automatic investigation of non-power-cut operation of the power distribution network is realized, transformation from operation and maintenance of the power distribution network to scientific and technical transformation is promoted, manpower and material resources are saved, and power supply reliability and operation and maintenance management efficiency are remarkably improved.

Disclosed is a computer-implemented method of determining imaging control data for controlling medical imaging for localizing the position of an anatomical body part. The disclosed method encompasses generation of synthesized medical images from a tomographic planning image at an image contrast which allows to appropriately recognize a representation of soft tissue in the synthesized medical images. An imaging parameter, for example the energy, of a (virtual) beam of imaging radiation is adjusted to achieve such a contrast. The determined value of the imaging parameter can then be used later for image-based tracking of the anatomical body part during a medical procedure such as radiation treatment. For example, too high energy values should be avoided because they would result in a comparably low contrast of image constituents representing soft tissue because only a small fraction of the energy would be absorbed by the soft tissue.

The invention discloses an existing bridge high-precision three-dimensional reconstruction method based on laser point cloud data, and relates to the technical field of bridge engineering digital reconstruction. Multi-source laser point cloud cooperatively collects detail point cloud of key components of an existing bridge, point cloud of a bridge floor and an upper structure and point cloud of a shielding part; multi-source point cloud coarse registration is completed based on a target ball of a preset specification, and then fine registration is carried out by adopting an improved iterative nearest point algorithm of integrated normal vector constraint; and adopting a layered denoising strategy to carry out statistical filtering denoising on the flat area, and carrying out adaptive radius filtering on the vulnerable area to reserve cracks and peel off disease points. Through collaborative design of multi-source acquisition, precise processing, intelligent segmentation, parameterized modeling and hierarchical verification, data integrity improvement, consideration of point cloud processing precision and disease retention, semantic segmentation and instance identification precision optimization, BIM model engineering value improvement and achievement adaptability enhancement are realized.

The invention discloses an architectural drawing management method and system based on multi-modal AI recognition, and relates to the technical field of data management, and the method comprises the steps: extracting drawing frame information of a drawing file through a preset image recognition large model when the drawing file is received; based on a preset field mapping relation, converting the drawing frame information into database fields and storing the database fields into a preset drawing database; when a query instruction is received, the query instruction is converted into a library query statement, and retrieval is performed in a preset drawing database based on the library query statement; and determining a target drawing file according to the retrieval result, and sending the target drawing file to a permission user corresponding to the query instruction. According to the method, three core technologies of dynamic drawing frame positioning, natural language processing and an intelligent workflow engine are fused, so that full-process digital reconstruction from drawing analysis and structured storage to intelligent retrieval and multi-user collaboration is realized, and the building drawing management efficiency is improved.

The invention relates to the technical field of three-dimensional digital reconstruction, in particular to an archaeological site reconstruction method based on image point cloud cross-modal alignment, and the method comprises the steps: obtaining an optical image of an archaeological site and archaeological site point cloud data; obtaining a point cloud distribution characterization value based on the archaeological site point cloud data, determining a thinning mode of the archaeological site point cloud according to the point cloud distribution characterization value, and carrying out thinning processing based on the thinning mode; performing cross-modal alignment on the thinned archaeological site point cloud data and the optical image of the archaeological site; determining the qualification of the alignment effect according to the cross-modal alignment rate, and determining an adjustment strategy when the alignment effect is unqualified according to the mismatch rate of the key region when the alignment effect is unqualified; and fusing the archaeological site optical image with the qualified alignment effect with the archaeological site point cloud data, and executing dense point cloud reconstruction, three-dimensional grid generation and texture mapping to complete three-dimensional reconstruction of the archaeological site. According to the method, the cross-modal alignment efficiency of archaeological site reconstruction is improved.

The present invention relates to a digital testing method and computer equipment for a nuclear power plant simulator. The method comprises the following steps: obtaining key system elements by deconstructing the simulator's software configuration and calculation results, and performing digital modeling based on the key system elements to obtain a test object; obtaining a test mode by decomposing the simulator's test capabilities according to different quality attributes and performing digital reconstruction; constructing different digital test scenarios based on the test object and the test mode, and implementing the digital scenarios into automated test tools through programming to build a digital test system; obtaining control data, and performing test operations on the simulator using the digital test system based on the control data, and outputting difference results. Efficient, accurate, comprehensive, and maintainable testing of the nuclear power plant simulator is achieved. The efficiency, accuracy, and comprehensiveness of the test are collectively improved, and the maintainability and scalability of the test system are enhanced.

The invention discloses an environment situation scanning three-dimensional reconstruction method based on infrared and SLAM, and belongs to the technical field of computer vision and three-dimensional reconstruction. According to the method, thermal radiation information and environment image information of a target environment are obtained through infrared sensing and visual imaging respectively, after feature extraction and matching processing are conducted on the two kinds of information, synchronous positioning and map construction are completed, and environment pose data and environment map data are generated; a sensing uncertainty probability model is established, after multi-source data denoising is completed through Bayesian filtering, feature level fusion is carried out to obtain fusion environment data, and finally a three-dimensional reconstruction model of a target environment is constructed based on the fusion environment data. According to the method, the full-process closed loop of environment situation scanning and three-dimensional reconstruction is realized, the application limitation of single sensing information is made up, the comprehensiveness of environment sensing data and the scene adaptability of three-dimensional reconstruction are improved, and the digital reconstruction requirements in various complex environments can be met.

The invention provides a construction method of a virtual electromagnetic environment model and a test device. The construction method comprises the following steps: acquiring multi-dimensional test data of a mobile carrier in a target scene; taking a timestamp of the baseband signal data as a reference, performing synchronous fusion on the positioning data and the attitude data, and generating a synchronous data set; performing parameter estimation on the synchronous data set, and separating a relative channel parameter of the multipath component in a mobile carrier coordinate system; converting the relative channel parameters into absolute space parameters under a geographic coordinate system based on the instantaneous space state, and determining physical scattering source characteristics corresponding to the multipath component based on the relative channel parameters and the absolute space parameters; and generating a virtual electromagnetic environment model based on the absolute space parameters and the physical scattering source characteristics. In the mode, a structured virtual electromagnetic environment model containing absolute space attributes can be generated, and then high-fidelity digital reconstruction and reproduction of a complex dynamic electromagnetic environment in a real scene are realized.

The invention belongs to the field of geological monitoring, and discloses a loess macropore seepage observation device and method based on a loess digital reconstruction body, and the loess macropore seepage observation device comprises the loess digital reconstruction body, a coloring agent container and a water discharging bottle; the bottom of the loess digital reconstruction body is provided with a permeable stone layer, and the top is provided with a hermetically connected top cover; a plurality of image acquisition devices are arranged around the loess digital reconstruction body; one sides of the drainage bottle and the permeable stone layer are communicated with the bottom of the coloring agent container; the first end of the three-way pipe is communicated with the interior of the top cover, the second end of the three-way pipe is provided with a pressure meter, and the third end of the three-way pipe is communicated with the atmosphere. The loess digital reconstruction body duplicates the macropore structure of the loess sample, the water flow migration process in the macropores of the loess digital reconstruction body can be rapidly observed, the water-driven gas process in the macropores of the loess digital reconstruction body can be rapidly determined, the working efficiency is high, the device is flexible and detachable, and the cost is low. The problem that the three-dimensional migration process of the water flow in the unsaturated loess macropores is difficult to accurately capture at present can be effectively solved.

The invention discloses a quantitative analysis method for ardealite leachate-carbonate rock fracture corrosion effect, and belongs to the technical field of material analysis. The quantitative analysis method for the ardealite leachate-carbonate rock fracture corrosion effect comprises the following steps: preparing a carbonate sample; preparing ardealite leachate; mounting the sample in a seepage device in a sealing manner, pouring the leachate into the seepage device, and carrying out a seepage test; performing CT scanning on the sample before and after corrosion to obtain a two-dimensional section slice image of the sample, and preprocessing the slice image based on a gray value and threshold segmentation method; and performing three-dimensional digital reconstruction on the preprocessed CT slice data, and calculating pore structure parameters, fracture structure parameters, fractal dimensions and permeability of the sample to complete quantitative analysis. By adopting the quantitative analysis method for the ardealite leachate-carbonate rock fracture corrosion effect, the problem of low analysis accuracy of the ardealite leachate corrosion effect by an existing analysis method can be solved.

The invention is suitable for the technical field of medical images, and provides a two-dimensional projection image generation method, computer equipment and a computer program product. The method comprises the following steps: determining a first projection area corresponding to first three-dimensional voxel data of a target patient and a second projection area corresponding to second three-dimensional voxel data of a target medical device through a CPU (Central Processing Unit), and determining a first number of thread blocks to be started according to performance parameters of a GPU (Graphics Processing Unit); starting a first number of thread blocks through the GPU, respectively executing digital reconstruction projection operation on the first three-dimensional voxel data and the second three-dimensional voxel data in respective corresponding projection areas in parallel through the first number of thread blocks, and fusing a first projection image and a second projection image which are respectively obtained into a target projection image; therefore, the application range of the method can be expanded while the overall generation efficiency of the target projection image is improved.

The present application discloses a method, device, equipment, medium, and product for digitally reconstructing a gravity and magnetic anomaly color image, relating to the field of geophysical exploration technology. The method comprises: obtaining a gravity and magnetic anomaly color image; determining an actual geographic coordinate system based on projection parameters; converting the gravity and magnetic anomaly color image into an actual geographic coordinate system using pixel points to obtain anomaly grid data; determining discrete sample points based on the mapping scale of the gravity and magnetic anomaly color image, and obtaining sample grid data of the discrete sample points using the discrete sample points and the anomaly grid data; editing the sample grid data based on the anomaly grid data to obtain initial contour lines of the gravity and magnetic anomaly color image; and reconstructing the anomaly grid data based on the actual anomaly values ​​and initial contour lines of the gravity and magnetic anomaly color image to complete the reconstruction of the gravity and magnetic anomaly color image. The present application can reconstruct a gravity and magnetic anomaly color image, and the reconstructed gravity and magnetic anomaly color image can directly extract gravity and magnetic anomaly data.

The invention relates to a safety assessment method for pressure-bearing special equipment with crack defects based on health monitoring and digital twinning. Various sensors are installed at key parts of the equipment to collect running state data in real time, a parameterized digital reconstruction technology is adopted to establish high-precision twin bodies of the equipment, and stress distribution and crack propagation trend of the structure are automatically simulated and analyzed by means of cloud computing. A two-stage Bayesian optimization algorithm is innovatively used to realize self-correction of simulation result errors, and adaptive accurate mapping of a digital model to physical equipment is realized. And in a crack defect-containing area, an instability critical dimension prediction model is constructed based on an extended finite element method and a failure evaluation diagram technology, and the crack instability critical dimension is dynamically calculated. According to the invention, real-time, efficient and automatic safety assessment and early warning can be carried out on pressure-bearing special equipment, and scientific data support and decision basis are provided for safe operation and maintenance of the equipment.

The present application relates to the technical field of rock mass engineering, and particularly relates to a rock mass fracture intelligent identification and digital reconstruction method, comprising: collecting a rock mass fracture image; manually marking a color block; based on transfer learning, introducing an already-labeled medical image cell membrane sample and a road fracture sample, and jointly training a fracture identification model; inputting the rock mass fracture image into the fracture identification model to segment the fracture, and building a snake convolution network to extract multi-scale features of the image; digitally reconstructing a binary image to obtain a box set and a polyline set data; and reducing the digital data from a pixel scale to an engineering scale. The present application realizes full-process automation from intelligent identification of a rock mass fracture image to digital reconstruction, and can be widely applied to fields such as geotechnical engineering design, slope disaster identification, underground space stability analysis and the like.

The invention discloses a digitization and flexible pressure sensor combined thigh prosthetic socket optimization manufacturing method. Performing digital reconstruction on the thigh stump physical model; performing space calibration and size calibration processing on the reconstructed stump structural plane digital model; carrying out sparse processing on the stump structural plane digital model after space calibration and size calibration, and editing and optimizing the stump structural plane digital model; splicing the sparse point cloud digital model and the digital point cloud model of the hat brim and the seat support to form a thigh artificial limb digital model; a flexible pressure sensor is arranged for pressure analysis and adjustment of the thickness of a local segment, a prosthetic socket digital model with double-sided sparse point clouds formed on the outer layer surface is generated, and finally conversion is performed for 3D printing. According to the invention, the flexible sensing unit corresponds to the point cloud unit on the digital skin, real-time change evaluation of muscle stress under static and dynamic conditions is carried out, the physiological change of a patient can be rapidly adapted during re-examination, and a more personalized and timely rehabilitation solution is provided.

Disclosed is a medical imaging conversion method, automatically converting: at least one or more real x-ray images of a patient, including at least a first anatomical structure of the patient and a second anatomical structure of the patient, into at least one digitally reconstructed radiograph (DRR) of the patient representing the first anatomical structure without representing the second anatomical structure, by a single operation using either one convolutional neural network (CNN) or a group of convolutional neural networks (CNN) which is preliminarily trained to, both or simultaneously: differentiate the first anatomical structure from the second anatomical structure, and convert a real x-ray image into at least one digitally reconstructed radiograph (DRR).

The application discloses a kind of based on space sampling consistency determination pipe robot multi-source perception full true simulation test system, belong to pipe detection simulation test technical field, it includes mechanical execution system, space state perception gate and physical trigger system, multi-sensor sampling unit, true value reconstruction system.Mechanical execution system provides the motion reference along the axial direction of pipeline, and allow to introduce controlled nonlinear disturbance, space state perception gate and physical trigger system are used for the arbitration of sampling opportunity when FPGA motion control card, step modulation and physical trigger;Multi-sensor sampling unit is used to execute sampling instruction and generate original data with position label;True value reconstruction system is used to construct the standardized pipeline true value containing position, texture and geometric information;The application realizes high-fidelity three-dimensional digital reconstruction to the inner wall of pipeline by introducing IMU posture latch, micro time delay elastic capture, binocular vision forward variable frequency modulation and reverse geometry correction algorithm.

The invention discloses a method for reconstructing chest CT based on an orthogonal biplane X-ray film. The method comprises the following steps of: 1, after preprocessing CT data, generating an orthogonal biplane X-ray film by using a digital reconstruction radiographic image technology, and dividing a paired data set; 2, constructing a reconstruction model for reconstructing the chest CT, wherein the reconstruction model comprises a generator and a discriminator; 3, inputting the training set obtained in the step 1 into a model, generating a CT image, inputting the CT image and a real image into a discriminator, and optimizing the model through a loss function until the generated CT image is difficult to distinguish by the discriminator; and 4, inputting the orthogonal biplane X-ray film of the patient into the trained model to generate a corresponding reconstructed CT image. According to the method, a feature enhancement block is added in a generator coding stage to improve the anatomical feature extraction capability, and meanwhile, a perceptual consistency loss function is designed, so that a reconstructed image is closer to a real image in brightness, contrast and structure, and clinical availability is improved.

The invention discloses an intelligent structure topology method of an urban spatial form, which realizes digital reconstruction of the urban spatial form through a multi-dimensional spatial element intelligent recombination technology, and comprises the following steps: acquiring urban spatial big data, and establishing an urban spatial database; intelligently identifying urban space elements according to types, and generating a vector graph; carrying out geometric intelligent analysis on the urban space element vector graph, and carrying out preprocessing of cutting, merging and combining; performing vector-grid-vector double-loop graph optimization on the vector graph to generate various urban space element topological patterns; and superposing the urban space element topological patterns according to the class and sequence to form an intelligent structure topological graph of the urban space form, and outputting and displaying the intelligent structure topological graph.

This application relates to a method and apparatus for digital transformation of ODN facilities. The method includes: obtaining a character array of box names and a character array of port names based on an actual box image; identifying the box under maintenance and installing box tags and fiber optic cable segment tags directly connected to the box; obtaining a port status array based on a box image after all fiber optic cable segment tags have been installed; locating and identifying each installed fiber optic cable segment tag, and obtaining a port name-bound tag object array based on the located and identified box image, port name character array, and port status array; constructing a meter-length pairing structure object array between box ports based on the meter-scale image of the fiber optic cable segment; and constructing a tag pairing relationship between box ports based on the box topology connection table, the meter-length pairing structure object array between box ports, and the port name-bound tag object array. This application allows a single person to quickly assemble tags for boxes or fiber optic cable segments and complete the digital transformation, with high efficiency and low construction difficulty.

The application belongs to the technical field of three-dimensional measurement and digital reconstruction, and specifically discloses a pipeline reconstruction and detection method based on a virtual adapter, which comprises the following steps: a multi-view vision system collects multi-angle images of a pipeline to be detected, reconstructs the pipeline and determines a bending point; the pipeline is aligned and matched with the bending point, and an initial conversion matrix of a measurement and digital model coordinate system is obtained based on an SVD decomposition method; a digital model pipeline accessory is projected to a camera image, and an adjustment matrix is obtained by optimization of minimum pixel sum and maximum gradient; a threshold is set to screen edge points, and a final conversion matrix is obtained by optimization of maximum gradient after projection; the accessory is converted to the measurement coordinate system, and is spliced with the reconstructed pipeline to form a complete model, and the bending point and the accessory feature deviation are compared. The application reconstructs the pipeline with complex accessories such as flanges and valves through initial calibration of coordinate conversion, projection optimization and edge point fine adjustment, restores the pipeline and the accessory features completely, and improves the pipeline detection precision.

This invention provides a method and apparatus for rapid and non-destructive digital reconstruction of cultural relics and ancient buildings. The reconstruction method includes: acquiring an image set of the target object and corresponding depth data; performing quality improvement processing on the depth data and performing pose calculation on the image set to obtain pose data; identifying different feature regions on the surface of the target object based on the image features of the image set, and assigning corresponding fusion weights to the processed depth data according to the characteristics of each feature region; using the image set, the weighted depth data, and the pose data as input data, performing three-dimensional reconstruction of the target object through a reconstruction model, and completing scale calibration during the reconstruction process; and outputting a scale-calibrated three-dimensional model of the target object. The technical problem solved by this invention is that limitations in the performance indicators of object acquisition and processing make it difficult to coordinate and optimize the speed, accuracy, and direct usability of the overall reconstruction method, resulting in less than ideal digital reconstruction results.