47results about How to "Accelerated rendering" patented technology

The invention discloses a real-time virtual scene LED shooting system and method, and belongs to the field of movie and television shooting. According to the invention, the digital assets are called to construct the virtual scene according to the content needing to be presented by shooting scenes, the virtual LED screen and the virtual camera are reconstructed in a virtual engine module, and the real environment illumination information in the photostudio is synchronized to the virtual engine in real time. Distributed real-time rendering is performed on the virtual scene through the virtual engine module and the virtual scene is displayed on a virtual LED screen; the virtual engine further overlaps a picture with a depth channel rendered by the virtual engine in real time according to theposition of the real-time camera and lens distortion information outside the virtual LED screen. The physical LED screen displays the virtual LED screen, the real-time camera completes shooting, the XR module obtains the picture with the depth channel and the picture shot by the real-time camera, and a final picture is obtained through synthesis. The method can replace green screen key to achievethe effect of direct film formation in most environments, optimize the film production process, and save the cost of complex visual special effects.

The invention discloses a method and a device for switching different versions of IE (internet explorer) kernels on the basis of a multi-kernel browser. The browser comprises at least two kernels, wherein one kernel is the IE kernel. The method comprises the following steps of: receiving request information of a loaded webpage, wherein the request information comprises URL (uniform resource locator) information; learning the adaptation relationship between the requested webpage and a browser kernel; selecting the corresponding browser kernel; when the selected browser kernel is the IE kernel, judging the version of the current adaptive IE kernel; if the current adaptive IE kernel is the IE6 kernel, invoking the redirected module of the IE kernel to load a preset IE6 kernel file; and if the current adaptive IE kernel is a novel IE kernel, invoking the redirected module of the IE kernel to load a preset novel IE kernel file. According to the invention, the problems of compatibility and suitability of the IE6 kernel browser and the IE8 kernel browser when the browser comprises the at least two kernels and one of the kernels is the IE kernel can be solved.

The invention relates to a video rendering method and device. The video rendering method comprises the steps of creating a texture via an OpenGL (Open Graphics Library); setting an OpenCL (Open Computing Language) to share the texture with the OpenGL; writing decoding data of a current video frame to the texture via an OpenCL parallel algorithm to obtain renderable data of the current video frame; and outputting the renderable data via the OpenGL. According to the video rendering method and device related by the invention, the general computing power of a GPU (Graphics Processing Unit) can be utilized fully, so that loads of a CPU and the GPU are balanced; and meanwhile, the operation time can be reduced via the OpenCL parallel algorithm; and thus, the rendering can be accelerated.

The invention relates to smart televisions and provides a method for managing big data poster information of a smart television on the basis of a 3D model. The method comprises the steps that when a system receives a video on demand preview order of a user, a video preview poster is loaded, refreshed and rendered to a current display page, and the system achieves the activities of focus moving, graphic rendering, preloading of poster pictures, refreshing of pictures and management of memory of the smart television in a multithreading management mode, wherein the activity of focus moving is arranged in a main thread, the activity of graphic rendering is arranged in a 3DUI thread, and the activities of preloading of the pictures, refreshing of the pictures and management of the memory are arranged in a Buffer thread. Preemptive management of multiple tasks is achieved through the multithreading management mode, and key response speed and poster data loading and refreshing speed are increased; in addition, the system carries out background poster picture loading by utilizing idle time, and therefore the loading efficiency of the poster can be further improved. The method is suitable for multithreading control and data preloading of the smart television.

The invention discloses a partial shadow image-based high-quality soft shadow fast generation method. The flow chart of the method comprises the following two parts: adaptive light source sampling and partial shadow image acceleration, wherein whether light source sampling points are further subdivided is judged by back projecting a generated partial shadow image on a camera viewpoint so as to perform the adaptive sampling on a light source and generate a shadow image which is enough to ensure high-quality shadow; and calculating a surface light source shadow image region corresponding to visible shadow pixels when the back projection of the shadow image is performed, and adjusting a projection matrix and a viewport generated by the shadow image so as to accelerate the shadow image. By the method, the high-quality shadow is ensured, and meanwhile, the rendering efficiency can be greatly improved; the method is particularly suitable for the scene with a larger number of invisible shadow parts. The method supports a dynamic surface light source, a dynamic deformable scene, does not need calculation, and has the advantages of easiness in implementation, lifelike effect, high rendering effect and the like.

The invention is suitable for the field of household electrical appliance control, and provides an air environment manufacturing method and device. The method comprises the steps: obtaining the current environment data; recognizing a game scene according to the obtained current environment data and a preset game scene database; and manufacturing an air environment coordinated with the game scene according to the recognized game scene. The method enables air products and the game scene to be organically combined through the cloud Internet of Things, and all air products are controlled by the Internet of Things to generate the air environment coordinated with the game scene. The beneficial effects of the invention lies in two aspects: improving the rendering of the game scene in a game process, improving the game vividness and sense of immediacy, and greatly improving the game interestingness; manufacturing the air environment coordinated with the game scene with no need to manually operate the air products, and improving the intelligent degree of the air products.

The invention discloses a method for determining the position of a target point and a terminal, and the method comprises the steps of generating a first ray according to the obtained position of an anchor point of an AR plane, the position of a camera which is used for shooting the AR plane and the direction of the center line of a shooting area of the camera; judging whether the first ray is intersected with the AR plane or not; if yes, determining the position of an intersection point of the first ray and the AR plane, wherein the intersection point is the target point. By adopting the method and the device, the rendering of the pixel occupied by the target point in the AR plane can be quickly completed according to the obtained anchor point of the AR plane.

The invention discloses real-time extension method and system of key vocabularies and a computer erasable recording medium thereof. The method comprises the following steps of: respectively carrying out data search on a plurality of search engines according to a queried vocabulary; subsequently, acquiring a plurality of document fragments relevant to the queried vocabulary respectively by the search engines; analyzing each document fragment so as to establish a relevant vocabulary list, wherein each document fragment lists a plurality of corresponding key vocabularies; subsequently, carrying out a relevant computing step according to a corresponding position relation between each key vocabulary corresponding to each document fragment and the queried vocabulary so as to respectively assign a relevant value to each key vocabulary; subsequently, carrying out a semanteme combining step and calculating the relevant value of each key vocabulary with the same semanteme in the file fragment to form a relevant pointer; and finally, determining part of key vocabularies to form a key vocabulary set of the queried vocabulary.

The invention provides a method and system for switching between an IE6 kernel and a novel IE kernel. The method includes the steps of generating an IE6 kernel file and a novel IE kernel file, leading the IE6 kernel file and the novel IE kernel file into a client-side, judging the version number of an IE kernel which is matched at present through a browser process according to URL information submitted by a user, reorienting the browser process to a corresponding position and loading the IE6 kernel file if the version number of the IE kernel which is matched at present is the version number of the IE6 kernel, and reorienting the browser process to a corresponding position and loading the novel IE kernel file if the version number of the IE kernel which is matched at present is the version number of the novel IE kernel. According to the method and the system, the page downloading process of an IE kernel browser can be effectively controlled, and efficiency and stability of page downloading are improved.

The invention relates to a page rendering method and device based on a template engine. The method comprises the following steps of monitoring a message sent by a main thread of the template engine through a working thread monitoring template; receiving the message through the working thread and parsing the message to obtain a pass parameter; making the working thread generate an HTML character string according to the pass parameter; and sending the HTML character string to the main thread of the template engine through the working thread in order to make the main thread of the template enginedisplay the page according to the HTML character string. According to the page rendering method and device based on the template engine, the rendering of the page can be accelerated, the rendering performance of the page can be improved and the condition of lag of the page can be avoided.

The invention relates to the field of computer graphics, provides a method, a device and equipment for correcting UV coordinates and a computer readable storage medium, and aims to reduce consumption of computing resources and enable a texture mapping result to be a normal effect. The method comprises the following steps: performing UV tiling on the surface of a virtual model to obtain a plurality of continuous rectangles; performing basic operation on the UV coordinates of the three vertexes of the rectangle and the side length ratio of the quadrilateral patch corresponding to the rectangle to obtain the UV coordinates (UM, VM) of the point M; based on a first interpolation algorithm, calculating UV coordinates (UMOri, VMOri) of the point M and UV coordinates (UM00, VM00) of a point M0 on the same straight line with the point M in the triangle; and correcting UM00 or VM00 of the UV coordinate of the point M0 by taking the UV coordinate of the right-angle vertex of the triangle, the UV coordinate (UMOri, VMOri) of the point M and the UV coordinate (UM00, VM00) of the point M0 as operation objects. According to the technical scheme, consumption of computing resources is small, and acceleration of rendering is facilitated.

The invention discloses a method for enhancing the flash video picture quality in a Web Browser. The method is characterized by comprising the following steps of: S11, creating a proxy component Proxy of a Flash control, wherein the proxy component Proxy is bridged with the Web Browser and the Flash control and is used as an interactive medium between the Web Browser and the Flash control; S12, creating the Flash control and an Active X container Flash Container containing the Flash control by the proxy component Proxy; and S13, rendering and enhancing video data of the Flash control by the Flash Container. According to the method, the Flash control in the Web Browser is capable of calling a picture quality process flow, and therefore, the picture quality of the Flash video can be remarkably enhanced. In addition, the invention also discloses a system for enhancing the Flash video picture quality in the Web Browser.

The invention discloses a three-dimensional map surveying and mapping system. The three-dimensional map surveying and mapping system includes a central processing system, the input end of the centralprocessing system is connected with the output end of the feedback module; the input end of the feedback module is connected with the output end of the three-dimensional processing system; the input end of the three-dimensional processing system is connected with the output end of the data integration module; the input end of the data integration module is connected with the output end of the information acquisition system; the three-dimensional processing system comprises an image processing system, a 3D feature extraction module, a virtual object placement module and a 3D map generation module; the output end of the image processing module is connected with the input end of the three-dimensional feature extraction module, and the output end of the three-dimensional feature extraction module is connected with the input end of the virtual object imbedding module. According to the three-dimensional map surveying and mapping system, the rendering acceleration process can be achieved, thetime spent on three-dimensional model rendering is shortened, and the practicability of the three-dimensional map surveying and mapping system is greatly improved.

The invention relates to the field of three-dimensional visualization. The invention relates to the technical field of urban landscape modeling, in particular to an urban landscape model three-dimensional visualization method and system, a medium and electronic equipment, and is characterized in that the method comprises the following steps: 101, partitioning a large-scene landscape model: partitioning a space model of a large scene, and partitioning each element to different space positions to achieve the purpose of relatively uniform overall distribution of the space model; 102, constructinga hierarchical model: performing hierarchical simplification on various entity models in the scene, and constructing a viewpoint-independent hierarchical model; 103, merging block model elements; 104, rendering and cutting the three-dimensional model data; 105, dynamically combining the top-level nodes: dynamically combining the scene nodes according to space division; 106, cache data compressionstorage. Mass data can be reasonably organized, managed, stored, transmitted and scheduled in real time, and user experience is greatly improved.

The invention relates to the technical field of computer graphics rendering, and in particular relates to a static scene ray tracing chessboard rendering method and system based on a CPU and a storage medium. The method comprises the steps of constructing a three-dimensional scene according to the coordinates of a point light source and a geometric object; setting a historical pixel value buffer area and a historical collision point coordinate buffer area; calculating a boundary bounding box of each geometric object in the three-dimensional scene; achieving odd-even chessboard sampling in a programming mode, and obtaining sampling pixel points; if a camera is static, obtaining a half-resolution rendering frame by utilizing a chessboard type ray tracing algorithm in a rendering stage, and obtaining a full-resolution target image by combining pixel values of a historical pixel value buffer area; and if the camera moves through user interaction, obtaining a full-resolution target image through an interaction correction algorithm. According to the method, the three-dimensional scene is constructed, the pixel space is divided into blocks, the CPU parallel computing and the boundary bounding box are used for realizing rendering acceleration, and the effects of reducing frame buffer and improving the real-time interaction frame rate are achieved.

The invention discloses an urban building three-dimensional visualization method. The method comprises the following steps: constructing an urban building three-dimensional model; partitioning the three-dimensional model: dividing the three-dimensional model of the urban building into space models of different areas according to categories; carrying out overall visualization and regional visualization on the three-dimensional visualization of the urban building, achieving data reading, and carrying out color rendering or texture mapping; and integrating the spatial models after color rendering or texture mapping to form a complete urban building three-dimensional visual model. According to the method, the three-dimensional model of the urban building is divided into space models of different regions according to categories; the spatial models after color rendering or texture mapping are integrated to obtain the urban building three-dimensional visual model, the mass data processing process can be simplified, rendering of various large-scale complex buildings is accelerated on the premise of ensuring the sense of reality, the execution efficiency of three-dimensional interaction software is improved, and the experience feeling of a user is greatly improved.

Embodiments resolve hemisphere ambiguity at a system comprising sensors. A hand-held controller of the system emits magnetic fields. Sensors positioned within a headset of the system detect the magnetic fields. A first position and orientation of the hand-held controller is determined within a first hemisphere with respect to the headset based on the magnetic fields. A second position and orientation of the hand-held controller is determined within a second hemisphere, diametrically opposite the first hemisphere, with respect to the headset based on the magnetic fields. A normal vector is determined with respect to the headset, and a position vector identifying a position of the hand-held controller with respect to the headset in the first hemisphere. A dot-product of the normal vector andthe position vector is calculated, and the first position and orientation of the hand-held controller is determined to be accurate when a result of the dot-product is positive.

The invention relates to the technical field of image data processing, and discloses an engineering three-dimensional model LOD output method based on 3DTiles, and the method builds a multi-resolutionhierarchical structure for an engineering three-dimensional model based on the HLOD technology for output, and reduces the geometric complexity of a model needing to be displayed under a specific view on the premise that the visual effect is not affected, wherein the establishment of the multi-resolution hierarchical structure for the engineering three-dimensional model comprises the steps of field composition design of tree nodes, tree node coding based on Morton codes, data segmentation, HLOD hierarchical structure establishment based on MeshID and geometric error calculation based on Hausdorff distance. According to the invention, a multi-resolution hierarchical structure is established for the engineering three-dimensional model based on the HLOD technology for output, the geometric complexity of the model in a specific scene can be reduced, and the method has great significance in rendering large-scale and complex scenes.

The invention discloses a dynamic scene rendering acceleration method based on light path multiplexing. The technical scheme is that the method comprises a preprocessing step and a runtime step, and the preprocessing step is executed before operation when a plurality of light rays are emitted to a scene and corresponding scattered light rays are tracked to calculate an image, and if the scene changes in the running process, the runtime step is executed; the preprocessing step comprises the following steps: S1, emitting a plurality of light rays from a light source, or emitting a plurality of reverse tracking light rays from a viewpoint; S2, calculating a propagation path of each light ray in a three-dimensional virtual scene, and calculating collision point information of the light rays and a model in the scene. According to the dynamic scene rendering acceleration method based on light path multiplexing, only the light in an area before and after an object changes is processed according to a light path stored in the preprocessing and based on the idea of path multiplexing, and acceleration rendering of a dynamic scene in light tracing applications such as games and movies and televisions can be achieved.

The invention discloses an aluminum alloy extrusion plate mold with a curved surface internal corner adjusting function. The aluminum alloy extrusion plate mold is characterized by comprising a panel runner and wing plate runners, at least three wing plate runners are arranged, the cross sections of the wing plate runners are perpendicular to that of the panel runner, and the wing plate runners are distributed at equal intervals from one side edge to the other side edge in the width direction of the panel runner and connected to the panel runner. The two opposite sides of the outer half segments, away from a panel, of the adjacent wing plate runners are provided with symmetrically-distributed reverse-tooth runners. Five or more levels of reverse teeth are arranged on the reverse-tooth runner on each side, the opposite reverse teeth between the adjacent wing plate runners are close to each other level by level from outside to inside, and longitudinal groove runners are connected to the longitudinal center line positions, between the adjacent wing plate runners, of the panel runner; expansion block runners are arranged below the opposite reverse tooth runners between the adjacent wing plate runners, buckle runners are arranged on the two sides of the expansion block runners, and the middle portions of the expansion block runners are connected with guide limiting plate runners; and the required extrusion pressure is small, and curved surface internal corners of different curvatures can be adjusted for extrusion products.

The invention discloses an aluminum alloy extrusion plate mold with a curved surface internal corner adjusting function. The aluminum alloy extrusion plate mold is characterized by comprising a panel runner and wing plate runners, at least three wing plate runners are arranged, the cross sections of the wing plate runners are perpendicular to that of the panel runner, and the wing plate runners are distributed at equal intervals from one side edge to the other side edge in the width direction of the panel runner and connected to the panel runner. The two opposite sides of the outer half segments, away from a panel, of the adjacent wing plate runners are provided with symmetrically-distributed reverse-tooth runners. Five or more levels of reverse teeth are arranged on the reverse-tooth runner on each side, the opposite reverse teeth between the adjacent wing plate runners are close to each other level by level from outside to inside, and longitudinal groove runners are connected to the longitudinal center line positions, between the adjacent wing plate runners, of the panel runner; expansion block runners are arranged below the opposite reverse tooth runners between the adjacent wing plate runners, buckle runners are arranged on the two sides of the expansion block runners, and the middle portions of the expansion block runners are connected with guide limiting plate runners; and the required extrusion pressure is small, and curved surface internal corners of different curvatures can be adjusted for extrusion products.

The invention discloses an aluminum alloy extrusion board with an adjustable hook face internal angle. The aluminum alloy extrusion board is characterized by comprising a face board and wing boards; the number of the wing boards is at least three, the face board and the wing boards are all long-strip-shaped boards, the longitudinal direction of the wing boards is coincident with the longitudinal direction of the face board, the width direction of the wing boards is perpendicular to the back face of the face board, the wing boards are distributed on and connected to the back face of the face board at equal intervals from the edge of one side to the edge of the other side in the width direction of the back face of the face board, symmetrically-distributed reverse teeth are arranged on the two opposite lateral faces, far away from the outer half section of the face board, of the adjacent wing boards, the opposite reverse teeth between the adjacent wing boards get close step by step from outside to inside, and a longitudinal groove is formed in the longitudinal center line portion, between every two adjacent wing boards, of the back face of the face board; and expansion blocks are arranged between the opposite reverse teeth between the adjacent wing boards, buckles capable of being buckled on barbs on the same sides are arranged on the two sides of the expansion blocks respectively, and guiding limiting plates capable of being inserted into the longitudinal grooves are arranged in the middles of the expansion blocks. The required extrusion pressure is small, and the hook face internal angles with different change curvatures can be obtained through adjustment.

The invention relates to smart televisions and provides a method for managing big data poster information of a smart television on the basis of a 3D model. The method comprises the steps that when a system receives a video on demand preview order of a user, a video preview poster is loaded, refreshed and rendered to a current display page, and the system achieves the activities of focus moving, graphic rendering, preloading of poster pictures, refreshing of pictures and management of memory of the smart television in a multithreading management mode, wherein the activity of focus moving is arranged in a main thread, the activity of graphic rendering is arranged in a 3DUI thread, and the activities of preloading of the pictures, refreshing of the pictures and management of the memory are arranged in a Buffer thread. Preemptive management of multiple tasks is achieved through the multithreading management mode, and key response speed and poster data loading and refreshing speed are increased; in addition, the system carries out background poster picture loading by utilizing idle time, and therefore the loading efficiency of the poster can be further improved. The method is suitable for multithreading control and data preloading of the smart television.

The invention discloses a method and a device for switching different versions of IE (internet explorer) kernels on the basis of a multi-kernel browser. The browser comprises at least two kernels, wherein one kernel is the IE kernel. The method comprises the following steps of: receiving request information of a loaded webpage, wherein the request information comprises URL (uniform resource locator) information; learning the adaptation relationship between the requested webpage and a browser kernel; selecting the corresponding browser kernel; when the selected browser kernel is the IE kernel, judging the version of the current adaptive IE kernel; if the current adaptive IE kernel is the IE6 kernel, invoking the redirected module of the IE kernel to load a preset IE6 kernel file; and if the current adaptive IE kernel is a novel IE kernel, invoking the redirected module of the IE kernel to load a preset novel IE kernel file. According to the invention, the problems of compatibility and suitability of the IE6 kernel browser and the IE8 kernel browser when the browser comprises the at least two kernels and one of the kernels is the IE kernel can be solved.

The invention discloses an adjustable-light lighting device for outdoor lighting engineering and a use method, and belongs to the technical field of lighting engineering. The device comprises a base,wherein rollers are arranged at the bottom part of the base; fixing plates are arranged at the outer walls of the left side and the right side of the base; fastening screws are movably arranged on thefixing plates; supporting boards are arranged at the front side and the rear side of the top part of the base; limiting boards are arranged on opposite end surfaces of the two supporting boards; baffle plates are arranged at the left ends and the right ends of the limiting boards; opening grooves are formed in the middle parts of the limiting boards; and a hydraulic pushing rod is arranged at theleft side of the top part of the base. With the adoption of the device, the angle can be conveniently adjusted, so that the lighting angle of a lighting lamp used outdoors can be conveniently adjusted, and the light of the lighting lamp can be subjected to double-color rendering, and the light rendering performance is improved, and the light variability is achieved; a shielding plate is suppliedfor protecting in a rainy day, so that the lighting device can be conveniently used outdoors; and the device is simple in structure, and convenient to use.

The invention discloses an aluminum alloy extrusion board with an adjustable hook face internal angle. The aluminum alloy extrusion board is characterized by comprising a face board and wing boards; the number of the wing boards is at least three, the face board and the wing boards are all long-strip-shaped boards, the longitudinal direction of the wing boards is coincident with the longitudinal direction of the face board, the width direction of the wing boards is perpendicular to the back face of the face board, the wing boards are distributed on and connected to the back face of the face board at equal intervals from the edge of one side to the edge of the other side in the width direction of the back face of the face board, symmetrically-distributed reverse teeth are arranged on the two opposite lateral faces, far away from the outer half section of the face board, of the adjacent wing boards, the opposite reverse teeth between the adjacent wing boards get close step by step from outside to inside, and a longitudinal groove is formed in the longitudinal center line portion, between every two adjacent wing boards, of the back face of the face board; and expansion blocks are arranged between the opposite reverse teeth between the adjacent wing boards, buckles capable of being buckled on barbs on the same sides are arranged on the two sides of the expansion blocks respectively, and guiding limiting plates capable of being inserted into the longitudinal grooves are arranged in the middles of the expansion blocks. The required extrusion pressure is small, and the hook face internal angles with different change curvatures can be obtained through adjustment.