233 results about "Viewport" patented technology

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 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.

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 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 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 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.

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.

A data processing system includes a transaction bus, a console application in communication with the transaction bus, and a view predictor subsystem in communication with the transaction bus. The transaction bus receives, from a user application executing on a client device, a call for visual information to be provided to the user application. The view predictor subsystem determines a likelihood that the visual information will be viewable within a viewport of the user application, and a plurality of respective values for a plurality of sources of the visual information are computed based on the likelihood and a respective priority for each source. The console application provides to the transaction bus the set of potential sources of the visual information, and the transaction bus selects, based on the computed values, one of the potential sources of the visual information to be the result, which is provided to the user application.

In one implementation, a method is performed for generating metadata estimations based on metadata subdivisions. The method includes: obtaining an input image; obtaining metadata associated with the input image; subdividing the metadata into a plurality of metadata subdivisions; determining a viewport relative to the input image based on at least one of head pose information and eye tracking information; generating one or more metadata estimations by performing an estimation algorithm on at least a portion of the plurality of metadata subdivisions based on the viewport; and generating an output image by performing an image processing algorithm on the input image based on the one or more metadata estimations.

The invention discloses a cloud exhibition hall multimedia component cross-terminal adaptive rendering control method, relates to the technical field of digital graphic processing, and is used for solving the problem of cross-terminal rendering mismatch. According to the invention, a cross-terminal adaptive rendering control mechanism oriented to a cloud exhibition hall multimedia component is constructed, and a terminal rendering state is generated according to a terminal display parameter, a viewport parameter, a graphic processing parameter and an interaction state; a target model node, a target texture node, a target viewport parameter and a target display component display sequence are dynamically determined from the layered rendering resource chain based on a preset rendering state machine, so that collaborative rendering and linkage display of a three-dimensional exhibition item component, an image and video display component and an instruction interaction component under different terminals are realized; and a target selection area is generated through projection correction of the hotspot labeling data, and local adjustment and update output are performed in combination with a picture continuity result, a selection consistency result and a component superposition result, so that the rendering consistency and display coordination of the cloud exhibition hall are improved.

Disclosed is a system (200) and method (300) for visualizing performance metrics data of wireless devices (106-118) within a selected viewport on a map interface. The method involves displaying a graphical user interface (GUI) with selectable options for defining a viewport and a service area of interest in a map layer. Further, upon receiving the user's input, relevant device data and network performance data of each wireless device within the selected viewport and the service area of interest is retrieved. The retrieved data is processed to generate the performance metrics data in a tabular format indicating a mapping of the device data with the network performance data corresponding to each wireless device. Further, the GUI provides options for sorting, filtering, downloading, and sharing the performance metrics data to facilitate detailed user analysis.

Viewport- and / or region-of-interest-dependent delivery of V3C data may be performed using RTF, RTP / RTCP signaling may support spatial region based and / or viewport-based partial access of V3C content. An SDP parameter may signal static 3D regions In immersive media content. An RTCP FB message type may carry 3D region of interest request during an RTP media transmission session. An SDP parameter may indicate an RTCP-based ability to request a desired 3D region during capability negotiations. An RTP header extension type may carry transmitted 3D regions information during RTP transmission of immersive media. An SDP parameter may indicate an RTP-based ability to signal transmitted 3D region information during capability negotiations. An SDP parameter may indicate an RTP-based ability to signal updated 3D region information during capability negotiations. An RTCP FB message type may carry viewport information during an RTP media transmission session. An SDP parameter may indicate RTCP-based capability to signal viewport information during capability negotiations.

This invention relates to the field of flood evolution simulation technology, and more particularly to a multi-model fusion flood evolution simulation system, comprising: a model building module; a range determination module for determining the baseline matching setting or direction matching setting for a target viewport based on the linkage viewport fit and the number of linkage viewports; a loading analysis module for determining whether to adjust the loading method of the target viewport's pre-loading range from direct loading to time-domain layered loading based on the network degradation coefficient and viewport feature anomaly degree; a time-domain layering module for determining whether to perform uniform layering based on anomaly evaluation values ​​or clustering layering based on evolution correlation degree in time-domain layered loading based on evolution law coefficients and tile evolution intensity; and an optimization adjustment module for determining whether to perform optimization adjustment based on loading level heterogeneity and multi-viewport loading interference degree. This invention can optimize scene loading strategies to improve the scene loading construction effect of flood evolution digital twins.

Systems, methods, and computer-readable storage media for emulating true full screen behavior in a web browser and more specifically to doing so without leveraging any full screen Application Programming Interfaces (API). A system can play, within a web browser, a video on a touchscreen display of a computing device, wherein the computing device uses an operating system which does not support full screen viewing of the video. The system can also display a full screen button on the touchscreen display over a portion of the playing video. When a user touches the full screen button via the touchscreen display, the system modifies a Document Object Model (DOM) associated with the web browser from an original configuration to a modified configuration, such that the web browser covers an entirety of a viewport of the touchscreen display and the computing device displays the video in a full screen emulator mode.

To solve the problem in which the video size may be tremendously high, incurring high transmission bandwidth when the video is delivered, and the high bandwidth consumption during the delivery may be wasted because a user only views a portion of an entire picture.SOLUTION: Systems, methods and instrumentalities are disclosed for client centric service quality control. A first viewport of a 360-degree video may be determined. The 360-degree video may comprise one or more of an equirectangular, a cube-map, a cylindrical, a pyramidal, and / or a spherical projection mapping. The first viewport may be associated with a spatial region of the 360-degree video. An adjacent area that extends around the spatial region may be determined. A second viewport of the 360-degree video may be determined. A bitstream associated with the 360-degree video may be received. One or more enhanced regions may be included in the bitstream. The one or more enhanced regions may correspond to the first and / or second viewport.SELECTED DRAWING: Figure 13B

This invention discloses a method, system, and device for text segmentation highlighting based on speech character position mapping, applied in the field of data processing technology. It achieves text segmentation highlighting through scrolling character position mapping. First, the text content, scrolling sequence, speed, and font layout are preprocessed and uniformly converted into character coordinates and progress percentage format. Character indices and highlight intervals are extracted through position mapping and segmentation detection to form display baseline information. Based on the scrolling-driven calculation module, text features are modulated and non-viewport content is filtered. A highlighting following effect is generated after pixel restoration and synchronization calibration. The highlighting module is directly connected to a fixed-logic prompting engine, and synchronization calibration of scrolling and chapter modes is only performed at the front-end mapping layer, achieving parameter optimization. Seamless adaptation of the rendering framework is achieved through dimensional alignment. Using the prompting engine as a timing discriminator, a complete technical solution for low-computing-power, high-precision, and pluggable scrolling text synchronization and segmentation highlighting is ultimately formed.

The application provides a list rendering method and device, electronic equipment, computer readable storage medium and computer program product; the method comprises the following steps: in response to a first operation for a to-be-rendered list, determining a first target object to be displayed in a viewport area of an electronic device and a second target object to be loaded outside the viewport area; calling a first coordinator located in a main execution thread, generating a first rendering instruction based on the first target object and a third target object currently displayed in the viewport area; calling a second coordinator, generating a second rendering instruction based on the second target object and a fourth target object; calling a rendering engine to obtain a current to-be-displayed view in the viewport area in response to the first rendering instruction, and calling the rendering engine to obtain a to-be-loaded view including the current to-be-displayed view in response to the second rendering instruction. Through the application, the rendering efficiency and smoothness of the list in the continuous interaction process can be improved.

Examples provide personalization for departments, services, and products with an immersive visual shopping experience. Content is automatically curated and personalized in real-time based on user preferences. Categories of items and item details are presented side-by-side within a single multi-pane viewport having a product list pane listing prioritized categories of items in a vertical row and a products detail pane providing details for a selected item. A vertical scroll function enables the user to scroll through the categories in the product list pane, and a horizontal scroll function enables the user to scroll through items for each category without navigating away from the viewport. Video content is shown in a video data pane. Entries for all items in a selected category are shown in an all-items-per-category pane. The multi-pane viewport has a flattened architecture enabling a unified view of categories and products within a single personalized viewport.

The invention discloses a three-dimensional vision field analysis method, device and equipment and a computer readable storage medium, and relates to the technical field of city design, and the three-dimensional vision field analysis method comprises the steps: constructing a three-dimensional model of a target region according to the region information of the target region; grid division is carried out on a view window where the three-dimensional model is located, and a plurality of viewport grid units are obtained; dynamically determining the proportion of each visual element in each viewport grid unit based on a preset element analysis algorithm; the element analysis algorithm is a ray detection algorithm or an image segmentation algorithm. According to the invention, the analysis efficiency of the element condition in the three-dimensional vision field can be improved, and the urban construction cost is reduced.

The application discloses a virtual-real cockpit fusion method based on SRWorks video perspective technology, and comprises the following steps: a virtual training scene is built; a real object image is collected; a cockpit cover viewport is created; a cockpit cover model is established; a dynamic material is created; a map located in a human eye field of view is intercepted from the virtual training scene; a dynamic material instance is created; the map is made into a dynamic material and is given to the cockpit cover model; a virtual-real fusion step comprises the following steps: a Scene Capture 2D class-based blueprint is established under Unreal Engine (UE4); a captured picture is drawn on a Render Target canvas; texture parameterization is carried out; an Actor class blueprint CockpitCover is established to store the cockpit cover model; and a fusion scene of the virtual training scene and a cockpit instrument panel is displayed in CockpitCover. The virtual-real cockpit fusion method based on the SRWorks video perspective technology is used to superimpose a real scene cockpit on a virtual environment under a natural light environment through the video perspective technology, so that the virtual-real cockpit fusion is realized, and a way of integrating the real scene into the virtual environment is provided.