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Indoor environment reconstruction method based on single view geometry principle

An indoor environment, single-view technology, used in transmission monitoring, electrical components, transmission systems, etc., can solve the problems of wasting time and energy, inefficiency, difficulty, etc., to save time and energy, improve work efficiency, and avoid manual measurement. Effect

Inactive Publication Date: 2014-04-30
XIDIAN UNIV
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Problems solved by technology

However, for the indoor environment, because of the complexity of its internal environment, it is extremely cumbersome and difficult to obtain the 3D data information of the environment
The existing method is to use artificial means to measure and obtain the three-dimensional data information of indoor environmental objects. It is necessary to carefully measure all the objects in the indoor environment, which is extremely inefficient and wastes a lot of time and energy. Will seriously affect the accuracy of indoor wireless channel prediction

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  • Indoor environment reconstruction method based on single view geometry principle
  • Indoor environment reconstruction method based on single view geometry principle
  • Indoor environment reconstruction method based on single view geometry principle

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not as a limitation to the present invention.

[0038] Such as figure 1 , figure 2 (a), 2(b), image 3 As shown in (a) and 3(b), an indoor environment reconstruction method based on the principle of single-view geometry includes the following steps:

[0039] 1) Select four calibration points A, B, C, and D on the horizontal ground in an indoor environment, and ensure that these four calibration points meet the following conditions: (1) All calibration points must be located on the horizontal ground; (2) The line segment AB is parallel to line segment CD, and line segment AD is parallel to line segment BC; (3) These four calibration points should preferably be located in the center of the single-view image and cover a larger area as much as possible; after dete...

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Abstract

The invention discloses an indoor environment reconstruction method based on the single view geometry principle. The method comprises the steps of selecting and measuring calibration points and calibration line segments, collecting single-view images, and determining the height and foot points of indoor objects. Compared with the prior art, three-dimensional data information of all the objects in the indoor environment are extracted, manual measurement for the indoor environment information data is reduced on the premise that certain precision is ensured, a large amount of time and energy are saved, working efficiency is improved, the technical aim that the indoor environment is reasonably and fast reconstructed is achieved, and then the indoor environment radio wave propagation characteristics are effectively analyzed based on the ray tracing algorithm through the reconstructed environment information data.

Description

technical field [0001] The invention belongs to the field of combining electromagnetic simulation and image processing, and specifically relates to a single-view geometric principle and a ray tracing algorithm, which are used to obtain three-dimensional coordinate information of objects in an indoor environment and indoor channel parameter prediction, in particular to a single-view geometric principle. Environment reconstruction method. Background technique [0002] Since the mid-1990s, wireless mobile communication has been in an explosive growth process. With the rapid increase of wireless mobile users, the capacity of the original mobile communication system has become very crowded, coupled with the demand for new services and new functions, all of which have greatly promoted the development of mobile communication. In this situation, the communication quality of the channel has received more and more attention. Since the basic characteristics of indoor wireless channel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/00H04B17/373
Inventor 郭立新陶维刘忠玉胡晓蕾
Owner XIDIAN UNIV
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