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Virtual-real fusion device and method based on pixel template in Web environment

A virtual-real fusion, pixel technology, applied in image communication, electrical components, stereo systems, etc., can solve problems such as limited network bandwidth, avoid incompatibility, reduce hardware configuration requirements, and improve rendering efficiency.

Active Publication Date: 2019-11-05
NANJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, its disadvantages are that limited network bandwidth, cheap clients, and concurrent access by multiple users are real problems that web applications need to face. Considering the above characteristics of the web environment, how to balance the computing power of the server and client to reduce network data transmission Quantification and improvement of fusion efficiency are the key issues to be solved in the Web-oriented virtual-real fusion method

Method used

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  • Virtual-real fusion device and method based on pixel template in Web environment
  • Virtual-real fusion device and method based on pixel template in Web environment
  • Virtual-real fusion device and method based on pixel template in Web environment

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Embodiment Construction

[0024] As shown in the figure, the present invention includes a client and a server. The client is used to submit requests and receive information returned by the server for autonomous drawing. The server is used to receive client requests and generate client-side autonomous drawing needs. A series of information and return to the client.

[0025] The client and the server are used to exchange information with each other: the information transmitted by the client to the server includes the main viewpoint, viewpoint operation type and camera name; the information transmitted by the server to the client includes the main viewpoint, the main Viewpoint background image and pixel template. The main viewpoint includes three vectors of position, orientation and upward direction. The pixel template is a two-dimensional array that records the video texture coordinates of the video coverage area. The background image and pixel template are in compressed or uncompressed format.

[0026] ...

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Abstract

The invention discloses a virtual-real fusion device and method based on a pixel template in a Web environment, which belongs to the field of computer graphics. According to the method, the virtual-real fusion process is reconstructed, a front-end and rear-end collaborative drawing architecture is adopted, the computing power of the front end and the rear end is balanced, and the network bandwidthpressure is reduced; based on the drawing template, the client can perform virtual-real fusion without a GPU, so that the drawing efficiency is greatly improved, and the hardware configuration requirement of the client is reduced; JS is adopted at the client to perform plug-in-free drawing, so that the problem that a browser is incompatible with a plug-in is avoided, and the efficiency and the compatibility are improved.

Description

technical field [0001] The invention relates to the field of computer graphics, in particular to a virtual-real fusion device and method based on a pixel template in a Web environment. Background technique [0002] Currently, virtual-real fusion is a typical data- and computing-intensive application that requires high hardware support. In the Web environment, there are three existing virtual-real fusion technologies: plug-in-based, remote rendering-based, and WebGL-based. [0003] The plug-in-based approach can give full play to the computing power of the client, but in the Web environment, cheap clients are ubiquitous, and it is difficult to meet the required hardware and software configuration. In addition, due to the need to download and install plug-ins, the customer experience is poor, there are security risks, and the cross-platform performance is also poor. [0004] Based on the virtual-reality fusion method of remote rendering, the video is connected on the server ...

Claims

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Application Information

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IPC IPC(8): H04N13/261H04N13/282H04N13/293H04N13/366H04N13/271
CPCH04N13/261H04N13/282H04N13/293H04N13/366H04N13/271
Inventor 胡斌傅键斌李磊
Owner NANJING NORMAL UNIVERSITY