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Method and system for extracting floor area of multi-floor building

A construction area and extraction method technology, applied in the field of measurement, can solve problems such as low measurement efficiency and difficulty in ensuring and verifying data accuracy, and achieve the effects of reducing work intensity, ensuring accuracy, and improving extraction efficiency

Inactive Publication Date: 2013-04-03
广东创信建设工程质量检测咨询有限公司
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Problems solved by technology

[0004] The efficiency of on-site measurement is low, and more importantly, the accuracy of the actual on-site measurement data is difficult to guarantee and verify

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  • Method and system for extracting floor area of multi-floor building

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Embodiment Construction

[0023] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] The invention discloses a method for extracting the construction area of ​​a multi-floor building, which specifically includes the following steps: 1. Obtain the original data of the measured area, establish a digital elevation model DEM of the measured area according to the original data, and carry out the digital elevation model DEM Determine the precision, determine the real area represented by each pixel in the elevation model; 2. Count the number of pixels at different elevations, and obtain a map of the number of pixels changing with the elevation; 3. Find the elevation with the lowes...

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Abstract

The invention relates to the technical field of measurement and discloses a method for extracting floor area of a multi-floor building. The method comprises the following steps of: 1, acquiring original data of a tested area, and determining field area represented by each pixel in a digital elevation model (DEM); 2, counting the number of pixels at different elevations, thus obtaining a picture of pixel number change along with elevation change; 3, seeking the elevation with the lowest pixel number change rate among the elevations in the picture to serve as a threshold for dividing floors, dividing the DEM into elevation sections of the different floors, and calculating the pixel number of each floor; and 4, calculating the building area of each floor according to the pixel number and the field area represented by each pixel. The invention also discloses a system for extracting the floor area of the multi-floor building. The method and the system can rapidly the building area of a house in each floor in the tested area by acquiring the original data of the tested area, establishing the DEM according to the original data, and performing a series of processing on the DEM.

Description

technical field [0001] The present invention relates to the technical field of measurement, in particular, to a method and system for extracting the building area of ​​a multi-floor building. Background technique [0002] With the rapid development of social economy, the real estate industry has also achieved unprecedented high-speed development, which has greatly improved and improved the quality of life of residents, but this has also brought difficulties to the management department. A lot of research and decision-making is based on the building area of ​​existing houses, such as the planning and allocation of affordable housing, the housing demolition compensation budget involved in regional planning, etc., and these must be based on the accurate building area of ​​existing houses . However, many houses have not been registered with the housing management department due to various reasons after they are built, such as not yet sold, or illegal construction. As a result, ...

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Application Information

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IPC IPC(8): G01B11/00
Inventor 刘庆国
Owner 广东创信建设工程质量检测咨询有限公司
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