364 results about "Viewport" patented technology

The invention relates to the technical field of page rendering, and discloses a progressive page rendering method and system based on streaming data, and the method comprises the steps: carrying out the data segmentation through obtaining a data stream, user interaction data and equipment performance parameters, and obtaining data blocks; then, performing cache management in combination with the data, and constructing a multi-level cache pool; thirdly, performing priority grading and sorting on the data blocks to form a rendering task queue; and according to the equipment performance parameters, optimizing a task sequence and obtaining an optimized task sequence. Next, combining the optimized task sequence and user interaction data, predicting data about to enter a viewport, and generating a viewport pre-rendering task; and finally, according to the viewport pre-rendering task, the multi-level cache pool and the equipment performance parameters, performing rendering strategy optimization to obtain a dynamically adjusted rendering task flow. The method can realize dynamic resource scheduling.

The invention provides an online map tile fast loading and caching optimization method, medium and system, and belongs to the technical field of map processing.The method includes the steps that a tile index database and an exchange priority matrix are established, a viewport moving trend vector is calculated according to user sliding operation, a future viewport range is predicted, and a preloaded tile list is screened; the method comprises the following steps: performing cache validity check on tiles, establishing a small change detection vector to judge whether updating is needed, establishing a tile hit rate statistical matrix, fusing a time decay factor and a spatial correlation factor to calculate a popularity score, and gathering high-popularity tiles in a quick access area by adopting a thermodynamics-imitating entropy reduction algorithm to realize cache ordering. And the next tile demand of the user is predicted, so that the technical problem that the overall loading response speed is reduced due to an overlong high-value tile access path caused by disordered distribution of cache resources in the online map tile loading process is solved.

The invention discloses a front-end performance optimization method and system based on dynamic resource loading and rendering optimization, belongs to the technical field of webpage front-end development, and aims to solve the technical problems that an on-demand loading scheme lacks dynamic strategy adaptation, is not deeply combined with a rendering process and cannot be dynamically optimized according to a real-time environment. Comprising the steps of predicting page blocks or resource types possibly accessed by a user through a behavior prediction model on the basis of user behavior data, and dynamically calculating a loading weight of each resource on the basis of the resource types, the distance between the resources and a viewport, the user behavior data and a user behavior prediction result; based on the network state and the equipment memory capacity, according to a preset resource loading strategy, setting a loading mode and a priority of resources; splitting a long list or a component in the page block into a plurality of independent frame rendering tasks, and processing the frame rendering tasks in batches in an idle period of the browser; and pre-defined performance indexes are monitored and recorded in real time.

The invention discloses a high-speed rendering method and system for a three-dimensional large-scale dynamic net rack of a one-graph of a power grid. The method comprises the following steps: generating three-dimensional model parameters of a power transmission line according to tower account data; dynamically scheduling rendering of the three-dimensional model of the power transmission line according to the visible area range; slicing the power transformation multi-source heterogeneous three-dimensional data; optimizing a three-dimensional rendering pipeline of the power grid graph; and three-dimensional net rack high-speed rendering is carried out through visual cone removal, LOD and instantiation rendering technologies. According to the invention, based on the machine account data of the power transmission line, accurate rendering of the three-dimensional line on one graph of the power grid is realized through parametric modeling; for a multi-source heterogeneous transformer substation model, three-dimensional slices in a unified format are formed through a scene division technology, and support of a power grid graph on a three-dimensional slice rendering pipeline is expanded; in order to improve the rendering performance, dynamic rendering scheduling is carried out on the three-dimensional net rack in the viewport, repeated drawing of a large number of same devices is avoided, the performance overhead is reduced, and the performance bottleneck of loading the large-scale three-dimensional net rack is effectively solved.

Systems and methods are provided to select a set of candidate listings having geographic locations within a geographical area, fit a bound for a maps viewport to the set of candidate listings, generate a maximum score for the set of candidate listings based on a booking probability for each listing, a distance of the listing location from a center of the bound for the maps viewport, and visibility based on other listings. The systems and methods further optimize the listings shown in the maps viewport by removing and replacing farthest listings up to a predefined number of listings to be removed and computing a cumulative booking score for each set of listings to compare to the maximum score. The systems and methods cause display in a maps viewport in a user interface of a computing device of a set of listings that has a maximum score.

The invention discloses a PDF progressive analysis rendering method and device and a related medium, and the method comprises the steps: constructing a rendering task context according to a target PDF document, and obtaining a rendering context data set; analyzing the rendering context data set to obtain a target page analysis task object; writing a page content stream in the target page analysis task object into an element queue, and performing viewport scheduling to obtain a viewport to-be-rendered element set; performing fragmentation rendering on the viewport to-be-rendered element set to obtain a progressive rendering control state object; and performing termination judgment on the progressive rendering control state object, and outputting a PDF progressive analysis rendering object. According to the method and the device, the to-be-rendered viewport element set obtained through calculation is subjected to fragmentation rendering to generate the bitmap, then termination judgment is performed, when the condition is met, the instruction is sent out, the resources are cleaned, and the PDF progressive analysis rendering object is obtained, so that when the PDF document is loaded, the conditions of interface blockage and first screen display delay do not occur any more, and the PDF document loading efficiency is improved.

The embodiment of the invention discloses a picture drawing method and device, equipment and a storage medium. The picture drawing method comprises the steps that multiple original pictures uploaded by a user are acquired; the original picture is converted into a to-be-displayed picture to be added in a canvas, the size of the to-be-displayed picture is equal to the to-be-displayed size of the original picture in a viewport, and the viewport comprises an area, displayed in a display screen, in the canvas; a texture image set is created, the texture image set is used for storing the texture of each to-be-displayed picture displayed in the viewport, and the size of the texture image set is determined according to the size of each to-be-displayed picture in the viewport and the position coordinates of the to-be-displayed pictures; drawing the to-be-displayed picture into the texture image set; and drawing the texture atlas into a canvas area in the viewport. According to the technical means, the technical problem that in the related technology, when a user uploads a plurality of pictures in a collaborative drawing board, the collaborative drawing board renders each picture, generated system memory resource occupation is too high is solved.

The invention relates to a two-dimensional file processing method based on three-dimensional lightweight linkage, which comprises the following steps: analyzing a three-dimensional model file generated by three-dimensional design software, and extracting key information; generating a lightweight model file, and storing coordinate information of the current viewport; receiving view information selected by the user terminal, and storing the view information in a collaborative information base; determining a projection algorithm; determining a first relative position of the labeling information relative to the component; projecting the geometric information to a two-dimensional plane according to a projection algorithm, the view range and the view angle, and generating a two-dimensional file after labeling the labeling information at the labeling position; storing the second relative position and the approval information in a collaborative information base, and associating the second relative position and the approval information with the coordinate information of the current viewport; and when the two-dimensional view of the two-dimensional file is displayed, positioning to a corresponding elevation position in the lightweight model file according to the elevation value, and displaying the approval information according to the coordinate information of the current viewport.

A computer facilitates display of content, and when criteria are satisfied, displays an option for initiating a process to display the content at a location by a second computer, facilitates initiation of a spatial real-time communication session with user(s) in a 3D environment, shares content with a second computer in response to selection of an element, in response to different inputs directed to a user of the second computer and to the content, and / or in response to movement of the content to an element, displays a sharing user interface for selecting content to share with a user in response to selection of an element displayed when the user is in a viewport of the computer, initiates a process to present a visual indication on a second computer in response to criteria being satisfied, and / or adds a user to a communication session in response to input directed at a user interface.

The disclosure provides a cleaning way for a vehicle sensor, the vehicle sensor has a viewport. The cleaning way includes steps of: controlling the vehicle sensor to scan the viewport to obtain viewport data of the vehicle sensor when the vehicle enters a cold start phase; determining whether dirt exists on the viewport based on the viewport data and predetermined dirt features; and controlling a cleaning device to clean the viewport when dirt on the viewport is detected. Additionally, the disclosure further provides a cleaning system for a vehicle sensor and a vehicle.

The invention discloses an intelligent screenshot method, device and equipment for a digital pathological section and a storage medium, and relates to the technical field of medical data processing, the method is applied to front-end equipment, and the method comprises the steps that in response to a section screenshot instruction, viewport parameters of a target section image at a current viewport and size parameters of a screenshot visual area are captured; according to the viewport parameters, drawing the slice image layer locked at the current viewport, the first annotation rendering layer and the second annotation rendering layer to an off-screen synthetic canvas corresponding to the size parameters in sequence, and generating initial screenshot data; and according to the viewport parameter and the size parameter, superposing the scale data on the initial screenshot data to generate target screenshot data. According to the method, the section image, the multi-source labeling information and the dynamic scale can be automatically synthesized during digital pathological section screenshot, manual splicing is not needed, errors are reduced, pure front-end real-time screenshot is achieved, rear-end participation is not needed, the response speed is high, and the real-time interaction requirement is met.

A web page embeds an AI-driven widget that converts static content into an interactive experience. Executable code builds a page interaction index from the page's DOM, including text, selectors, and positional metrics for DOM nodes. In response to natural-language input, pipelines perform summarization, stepwise explanations, voice-guided form completion with rule-based validation, and on-page product scanning to create a dynamic, user-tunable comparison table. Results are rendered as in-place overlays with interactive back-references that highlight source DOM nodes in the viewport. Speech recognition and text-to-speech enable multimodal interaction. Optional privacy gating redacts sensitive data or routes processing to local models. The system improves webpage usability by binding AI outputs to precise DOM regions and providing unified, context-aware assistance within the page.

A system and method are disclosed for policy-constrained symbolic rendering of artificial intelligence outputs using deterministic evidence structures and authenticated display controls. Governed records derived from device, clinical, operational, environmental, or multi modal data are normalized, lineage-tracked, and assembled into deterministic evidence packs whose ranking, augmentation, pruning, and ordering are reproducible and traceable. Governed prompts constructed from these evidence packs are provided to internal or external artificial intelligence models under controlled, deterministic invocation parameters. Candidate model outputs—textual or multimodal—are symbolically interpreted, evaluated by a multi-policy engine, and constrained into compliant renderable forms. A cryptographic render-token architecture binds each constrained output to its governing evidence, policy state, model and tokenizer identity, viewport or session binding, environmental conditions, temporal validity, and decision lineage. A display gate renders only upon successful token validation and revocation checks. Correction-propagation mechanisms revoke affected tokens, perform deterministic replay, and issue superseding views for reliable, auditable use in safety-critical environments.

The invention discloses an immersive video perception transmission method based on implicit integrated viewport prediction and representation learning code rate decision, and relates to the technical field of immersive video transmission and intelligent content perception coding optimization. In order to solve the problems of insufficient viewport prediction generalization, non-adaptive user preference modeling and poor stability under network disturbance in the prior art, the invention provides a method for establishing an implicit integrated viewport prediction model of a multi-input-output structure by collecting user head motion trail and view field thermodynamic diagram data; constructing a code rate decision engine of mutual information constraint by combining representation learning and reinforcement learning, and realizing tile-level dynamic code rate allocation according to a prediction result and user preference; introducing an adversarial training mechanism of bandwidth jitter and packet loss disturbance to enhance robustness; and end-to-end adaptive optimization is realized by adopting cloud, edge and terminal collaborative deployment. The method is suitable for a high-bandwidth and low-delay scene, the definition of a core visual area can be guaranteed, meanwhile, the bandwidth is remarkably saved, and the user experience continuity is improved.

The invention relates to the technical field of wafer testing, in particular to a wafer testing result visualization method and system. Through spatial discretization processing, continuous physical coordinates of test points are mapped to a fixed N * N regular grid, and mass and disordered coordinate points are classified into limited and ordered grid units through the conversion, so that the complexity of data positioning is reduced from O (n) to O (1). When rendering is carried out, a system can directly access grid data at any position through simple coordinate transformation without traversing all test points based on a data structure established on the basis of the regular grid. More importantly, the rendering mode is dynamically selected and drawn, so that the rendering calculation amount of the system does not depend on the total amount of test points any more, but depends on the number of grids in the current viewport. And the processing object is fundamentally optimized from a'test point 'to a'viewport inner grid', so that the data processing and rendering efficiency is greatly improved.

The invention discloses a structured corpus generation method and device for geological map multi-modal large model training, and the method comprises the steps: preprocessing geological vector data, and constructing a semantic aligned geological data set; randomly selecting a data viewport, and setting the geographic space range and size of a map viewport; configuring a plurality of visual parameter items, performing controllable random adjustment on text labels, element symbols and map maps, and customizing and producing geological map samples as required; extracting multi-dimensional attribute information of the geological map sample to construct structured meta-information annotation data, and constructing a geological element mask annotation file to obtain a structured corpus for geological map multi-modal large model training. According to the method, large-scale production of the training samples with diversity, high quality and image-text alignment features is realized, the geological map corpus meets the requirements of multi-modal large model training on data scale, diversity, labeling precision and modal alignment, and the training efficiency and generalization ability of a geological map intelligent interpretation understanding model are remarkably improved.

The invention discloses a secure closed-loop circulation and physical output control method and system for an oversized raster image. The method comprises the following steps: a client adaptively calculates fragmentation granularity according to a network state, fragments an image and encrypts and transmits the image; the server performs secondary encryption and distributed storage on the received data; the preview end constructs a multi-resolution hierarchy based on a viewport mapping technology, only extracts visual slices and superposes watermarks, and transmits the visual slices and the watermarks to a client memory for zero-cache rendering; and the printing end constructs a secure channel bound with a hardware fingerprint, carries out streaming decryption on the data, embeds traceability information, and injects a printing drive in real time. According to the method, the problems of unstable GB-level image transmission and unsmooth preview are solved, and high-efficiency circulation and strict protection of design assets are realized through full-process data non-landing streaming control.

A digital camera and a dual-mode viewfinder are provided. The camera includes a transparent imaging sensor that is configured to detect and refract light from an environment; a transparent display configured to display, at a same viewport, (i) the detected light from the environment as a digital representation, and (ii) the refracted light from the environment as an optical image; and control circuitry configured to: in a first mode of the camera, display on the transparent display the detected light from the environment as a digital representation, and, in a second mode of the camera, displaying on the transparent display the refracted light from the environment as an optical image. Related processes, subprocesses, apparatuses, devices, techniques, and articles are also described.

The invention relates to the technical field of human-computer interaction, discloses a method and a device for realizing writing roaming and zooming on a Qt platform, and aims to solve the problems of poor writing continuity and poor zooming visual consistency of existing intelligent equipment during finger writing. According to the scheme, the method mainly comprises the steps that unified overall scaling of all graphic items is achieved by operating viewport transformation of QGraphics View; meanwhile, based on the coordinate increment of multi-finger sliding, setSceneRect is dynamically called to expand the QGraphicsScene boundary, and a centerOn method is utilized to synchronously adjust the viewport center, so that continuous and smooth roaming of the viewport following the fingers is realized. Overall zooming and intelligent roaming are coordinated to jointly construct a virtual writing interface which can be extended infinitely and is synchronous in zooming, so that the writing continuity of finger writing and zooming visual consistency are improved, and the method is particularly suitable for application scenes such as large-screen teaching and digital signature.

The invention particularly relates to a GIS map mass point location loading optimization method. According to the GIS map mass point location loading optimization method, an appropriate level range for using point location aggregation is preset according to the characteristics of client data access; sVG is selected as a map marking format, and point location data is rendered based on the boundary of a map viewport; and when the map zooming level is lower than the user-defined threshold value and the data volume exceeds the user-defined threshold value, reducing the number of the independent marks on the screen by using a Marker Cluster strategy so as to improve the loading speed of the map and the user experience. According to the GIS map mass point location loading optimization method, the mass point location loading speed and rendering efficiency are remarkably improved, repeated calculation and DOM operation are reduced, system resource occupation is reduced, map interaction smoothness is enhanced, and therefore user experience and the stability and practicability of a GIS system are effectively improved.

The invention relates to the field of computer graphics and real-time rendering, and discloses a naked eye VR visual angle continuous roaming real-time tracking system, which comprises a multi-source viewpoint acquisition unit, a rendering feedback prediction unit connected with a depth buffer area and a template buffer area, and a viewport consistency arbitration unit. According to the method, motion vectors are purified according to object attributes of a template buffer area, a viewpoint is reversely deduced by means of data hierarchical solution of a depth buffer area, and a viewport consistency arbitration unit compulsively uses the reversely deduced viewpoint to take over rendering when the deviation of external sensing data exceeds a limit. The image visual residual inertia is used for filling the blank of external sensor data, and rendering collapse caused by sensor signal interruption or asynchronization is avoided.

The invention discloses a table long text self-adaptive prompting system and method based on dynamic truncation and intelligent positioning. Collecting a cell rendering context by the system, and generating a truncation mark and mapping by adopting two-stage truncation judgment of first-stage estimation and local measurement; when a prompt is triggered, calculating a display direction and an anchor point offset according to a safe edge distance and collision detection, and determining a prompt container size upper limit by using a viewport and container constraint; performing windowing injection on the ultralimit content, providing internal rolling, and controlling repeated measurement and rearrangement in cooperation with column granularity measurement cache and fragment cache; anchor point locking is maintained through a pointer and a rolling threshold value, and a fixed direction prompt or an inline expansion rollback path is provided when the capacity is insufficient.

The invention discloses an interactive naked-eye 3D scene dynamic adaptive construction method of a cross-scale model, and relates to the technical field of civil engineering BIM + GIS. According to the method, a dynamic three-dimensional scene is constructed based on multi-source BIM + GIS data; adjusting the position and attitude parameters of the main camera according to the observer position; calculating the position and attitude parameters of the slave camera according to the interpupillary distance of the observer; according to the dynamically changing scene, calculating visual cone parameters of the master and slave cameras in real time; then, a viewport picture of the main camera is calculated based on forward perspective projection, a viewport picture of the slave camera is calculated based on oblique perspective projection, self-adaption is carried out on display equipment, a multi-viewport image is synthesized, picture interweaving is carried out, the picture is input into a naked eye 3D display screen, and real-time and multi-angle picture three-dimensional presentation is carried out through a real and three-dimensional BIM + GIS three-dimensional scene. Interactive camera operation and scene modification and re-rendering are supported, and the effect of intelligent design and intelligent construction result visualization is remarkably improved.

The invention discloses a panoramic video streaming transmission viewing viewport trajectory clustering analysis method. The objective of the method is to perform clustering analysis on viewport viewing tracks of different viewers of the same panoramic video so as to obtain behavior characteristics of different types of viewers when watching the panoramic video. According to the method, the distance calculation between any two viewport positions on the spherical panoramic picture can be correctly processed, so that the average viewport track of each clustering cluster calculated according to each viewing viewport position vector sample clustering cluster obtained by clustering is ensured; and behavior characteristics of different types of viewers when watching the panoramic video can be correctly reflected. The method has the advantages of high flexibility and adaptability when clustering analysis is carried out on viewing viewport tracks of different panoramic videos, and the purpose of generating different numbers of viewing viewport position vector sample clusters for different panoramic videos can be conveniently achieved.

The invention discloses an obstacle distance measurement method and system based on panoramic tiled display. Four-way or six-way fisheye cameras are installed on a vehicle, images around a vehicle body are collected, 3D rendering splicing is carried out based on calibration data (internal parameters / external parameters), and a 360-degree panoramic aerial view image is generated. A user clicks two points of a screen through a display terminal, a system converts screen coordinates into 3D normalized vertex coordinates through viewport inverse transformation, relative coordinate differences are calculated and then expanded into homogeneous coordinates, the homogeneous coordinates are converted into physical coordinate differences in combination with a pre-stored rendering transformation matrix inverse matrix (generated by model / projection / view transformation combination), and the 3D normalized vertex coordinates are converted into 3D normalized vertex coordinates. And finally calculating the actual physical distance between the two points. The system supports dynamic refreshing of a ranging result and renders a distance marking line on a panoramic image. According to the method, through multi-camera calibration, coordinate space mapping and a matrix transformation algorithm, interactive obstacle distance measurement in a vehicle-mounted panoramic display scene is realized, and the method is suitable for intelligent driving, vehicle auxiliary driving and other scenes.

High-speed scanning is implemented by a three-dimensional scanner, while the convenience of wireless communication is ensured. A three-dimensional measuring device 1 comprises: a three-dimensional scanner 2, which processes a first image including structured light to generate initial measurement information; an image acquisition unit 3, which moves a viewport to position the three-dimensional scanner 2 within the viewport; and a first wireless communication unit, which transmits second measurement information generated by processing a second image containing a marker of the three-dimensional scanner 2.and a 3D data generation unit 4, comprising a second wireless communication unit configured to receive the second measurement information transmitted via the first wireless communication unit, and generating a point cloud that specifies a three-dimensional shape of a measurement object based on the first measurement information generated by the scanner image processing unit and the second measurement information received via the second wireless communication unit.

The invention discloses a page self-adaptive zooming method and device, equipment and a medium, and the method comprises the steps that a page zooming event is responded, the page zooming proportion of the event is determined, and the page zooming proportion is the ratio of the page container width value of an original page corresponding to the event to the page viewport width value after user zooming operation; equally dividing the width value of the page container according to a preset equal score, and taking the product of the unit width obtained after equally dividing and the page scaling as a pixel scaling unit value; according to the pixel scaling unit value, scaling the page element taking the pixel as the unit in the original page, so that the scaled page element adapts to the page viewport width value and is displayed on the client. According to the method and the device, the pixel zooming unit value is dynamically calculated, and the page elements are scaled according to the value, so that the problems of layout disorder, element display abnormity and the like when a user carries out page zooming can be effectively solved.

The invention discloses a dynamic configuration mode of a Unity list and a performance optimization system and method, and relates to the technical field of game development, the method obtains a list structure from an externally defined configuration file, and the list structure comprises a data interface source, a data structure, a data type and a field. And restoring the style of the list by using an externally defined configuration file, wherein the style comprises the column width and height of the list, the column title width and height, the column spacing, the font size, the font color, the row height, the row spacing list scroll bar width and height, the row background color, the scroll bar background color and the like. The scrol1Rect method of the Unity is rewritten, and the object pool technology is added, so that the performance of the rolling list is greatly optimized. Even if the list data volume is huge, the number of game objects in the scene does not need to be optimized in a paging mode, and only depends on the viewport size. According to the method, through configuration and optimization, the working efficiency of the Unity development design list can be greatly improved, and meanwhile, the method has the real-time dyeing performance far better than that of a UGUI list implementation mode.

Described herein are methods, systems, devices, and processor readable storage devices for use during a teleconference among a plurality of users that each uses a respective device, of a plurality of devices, to participate in the teleconference. Certain such embodiments use positional information to cause displaying, by a device that is provided with the positional information, of a respective graphical indicator that indicates where a region of interest is within or relative to the viewport that is being displayed on the device.

The invention discloses an ArcGIS graphic engine acceleration and interaction method and system suitable for a mobile terminal, and belongs to the technical field of mobile geographic information systems. The system comprises a data processing subsystem, a graphic rendering subsystem, an interactive response subsystem and a data synchronous updating subsystem. The method comprises the following steps: in a preloading stage, performing layered thinning and caching on geographic data; in the concurrent rendering stage, graph drawing is conducted through a dynamic multi-thread model and GPU acceleration, and the anti-aliasing level is dynamically adjusted based on the equipment performance; in the interactive event processing stage, response is optimized through a viewport position prediction model and a double-buffering technology; and in a data dynamic updating stage, incremental data synchronization is carried out. The technical problems of rendering performance bottleneck, interaction response lag and high system resource consumption of the ArcGIS on the mobile terminal are solved, and the map rendering efficiency, the interaction fluency and the system resource utilization rate are remarkably improved.