Stair measuring method based on three-dimensional photographic technology

Abstract

The invention discloses a stair measuring method based on a three-dimensional photographic technology, which comprises the steps of placing a non-coding point, placing a coding point, calibrating camera correcting plate and a camera, placing camera correcting plate, shoot pictures and leading the pictures into a software to build a three-dimensional model. The method is simple and easy to operate, and the defects that measurement accuracy is difficult to ensure, time and labor are consumed and efficiency is low by means of a traditional mechanical measurement method.

Description

technical field [0001] The invention relates to a method for measuring data such as length, width, height and orientation of stairs, in particular to a method for measuring stairs based on three-dimensional photography technology. Background technique [0002] In real life, we often need to measure data parameters such as length, width, height, and orientation of stairs for the implementation of certain engineering projects. However, in the vast majority of cases at present, manual direct measurement is used, that is, a ruler is used to actually measure bit by bit, and then the obtained data are put together for further processing. However, this traditional mechanical measurement method has great disadvantages: 1. It is difficult to guarantee the accuracy of direct measurement with a ruler. Due to the existence of systematic errors and random errors in the actual measurement itself, coupled with the influence of the surrounding environment, and it is difficult to ensure the...

AI Technical Summary

Problems solved by technology

However, this traditional mechanical measurement method has great disadvantages: 1. It is difficult to guarantee the accuracy of direct measurement with a ruler

Due to the existence of systematic errors and random errors in the actual measurement itself, coupled with the influence of the surrounding environment, and it is difficult to ensure the horizontal and vertical of the scale in the actual measurement, the measurement benchmark is also changing at any time, and the final measurement error will be very large. Second, due to the poor measurement environment (such as lighting, space size, temperature, etc.) In some cases, due to the limitations of measurement conditions, the cost of direct measurement with a ruler is too high or even the method of direct measurement cannot be used to obtain the required staircase data; 4. The method of direct measurement is often time-consuming and takes up a huge amount of time. It is very easy to cause inconvenience to people on the floor (especially some elderly or disabled people) going up and down the stairs

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