Method for confirming building floor area ratio based on digital image technology

Abstract

The invention relates to a method for confirming building floor area ratio based on a digital image technology, which takes a personal digital assistant (PDA) and a digital camera as main means and takes GPS and a total station as auxiliary means to realize full digitalization collection and record of field work information. In a field work measurement, the PDA receives the positioning result of the GPS or the total station in real time through bluetooth communication and generates a field work investigation layer by combining with an existing base map in the PDA; the digital camera is utilized to shoot a building so as to obtain abundant building information; and an indoor data processing system can calculate the three-dimensional coordinate of a building corner point of a single image or a three-dimensional image, calculate a total building area, count the total area of a region and calculate the floor area ratio.

Description

technical field [0001] The invention relates to information investigation of urban building volume ratio, in particular to a method for determining building volume ratio based on digital image technology, and belongs to the technical field of land management electronic information. Background technique [0002] With the rapid advancement of urbanization in my country, the urban building volume ratio is an important indicator to measure the degree of urban land use intensification and the level of urban modernization. Management provides important basic spatial information. The building volume ratio refers to the ratio of the total building area in a certain plot to the building area (that is, the area of ​​the parcel). Usually, large-scale topographic maps are used to directly measure and calculate, but the cycle is long and the cost is high. In urban construction, it is necessary to grasp the current urban building volume ratio and estimate it mainly through remote sensing ...

AI Technical Summary

Problems solved by technology

Through the analysis, it is found that the average error of the calculation of the floor area ratio by various remote sensing image interpretation methods is generally around 10%, especially for buildings with complex structures, it is difficult to accurately determine the number of floors of the building and the building area of ​​​​different floors, and it is impossible to accurately measure Floor area ratio of complex buildings (complex buildings mean that the same building has floors with different plane shapes)

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