Aerial seamless virtual roaming system constructing method

A technology of virtual roaming and construction methods, applied in 3D modeling, image data processing, instruments, etc., can solve the problem that jump browsing cannot meet seamless virtual navigation and other problems

Active Publication Date: 2014-03-19
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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AI Technical Summary

Problems solved by technology

This kind of virtual roaming system built by collecting aerial pictures at fixed points to form a panorama, and then integrating the map, its jumping browsing cannot satisfy the seamless virtual navigation that users can freely specify routes

Method used

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  • Aerial seamless virtual roaming system constructing method
  • Aerial seamless virtual roaming system constructing method
  • Aerial seamless virtual roaming system constructing method

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Embodiment Construction

[0042] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0043] The present invention proposes a system construction method for realizing seamless and free virtual roaming of large-scale aerial vistas by using image-based rendering technology combined with aerial panorama generation technology, such as figure 1 Shown is the working flow diagram of the construction method of the air seamless virtual roaming system of the present invention, the present invention is divided into eight steps to complete, specifically as follows:

[0044] Step (1): Aerial photography sampling point layout, that is, to obtain the positional relationship between adjacent sampling points under the sparsest sampling conditions, including the angle α corresponding to the viewing angle area between adjacent sampling points and the angle α between adjacent sampling points Baseline distance B.

[0045] The invention utilizes the ...

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Abstract

The invention relates to an aerial seamless virtual roaming system constructing method. The aerial seamless virtual roaming system constructing method comprises the following steps of aerial photography sampling point arrangement, aerial photography image acquisition, sequence panoramic image generation, aerial panoramic image demarcation, ground scene expression, navigation route specification, scene rendering and seamless roaming. According to the aerial seamless virtual roaming system constructing method, an image-based rendering technique is adopted, and therefore, rigorous requirements of a huge amount of data in 3D reconstruction, for system hardware, can be avoided; sampling points of aerial panoramic photography are reasonably arranged, and therefore, it can be ensured that as many ground scenes as possible can be obtained with as less sampling data as possible adopted, and therefore, seamless immersive virtual roaming of navigation routes can be specified arbitrarily without constraints.

Description

technical field [0001] The invention belongs to the technical field of virtual reality, and relates to a method for constructing a seamless virtual roaming system in the air. This method builds a system to collect serial aerial panoramas, and uses image-based rendering technology to realize seamless virtual roaming in the air. Background technique [0002] Virtual reality technology is an emerging technology developed in the past 30 years. It integrates information technologies such as machine vision, computer graphics rendering, sensors, 3D simulation and artificial intelligence from a higher level to build virtual scenes and support user interaction. In this way, the user can observe and even control the scene information personally. A virtual reality system must meet three characteristics: conception, immersion, and interaction. Due to the limitation of computer performance (computing power, storage capacity), the three-dimensional scene drawn by computer graphics is us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/30
Inventor 张春晓文高进林招荣姚毅刚安超王洪民尚志鸣
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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