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Photogrammetry method of ccd combination total station photographic base station

A photogrammetry and total station technology, applied in photogrammetry/video metrology, measuring devices, instruments, etc., can solve problems such as heavy workload, inconvenient data inspection, verification, and low efficiency, and achieve the effect of improving efficiency

Active Publication Date: 2017-03-08
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology

[0004] So far, engineering surveying mainly uses surveying and mapping instruments such as traditional total stations, and with the rapid development of photogrammetry, it has gradually become a trend to apply photogrammetry to engineering surveying, but it is still limited to a single In the stage of total station measurement and preliminary application of photogrammetry, these limitations in the stage of engineering measurement are becoming more and more obvious in today's digital information development:
[0005] ①Using the traditional total station measurement can only realize the measurement of each point one by one, the workload is heavy and the efficiency is low;
[0006] ②Traditional total station is used for measurement, and only text files can be saved after field measurement, which is not convenient for later data inspection and verification in the office;
[0007] ③ When using photogrammetry to carry out engineering survey, it is difficult to determine the external orientation elements when the camera is photographed
[0008] Therefore, the current engineering measurement methods, whether it is total station measurement or preliminary application of photogrammetry, have limitations to varying degrees. How to find a measurement method that overcomes these shortcomings is particularly important

Method used

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  • Photogrammetry method of ccd combination total station photographic base station

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Embodiment Construction

[0024] When CCD total station is used for photographic base station photogrammetry, there are great improvements and innovations in the measurement method and solution method, which provides a new idea and method of engineering measurement, specifically:

[0025] (1) According to the parameters of the CCD lens, the field of view of the CCD lens is determined, and according to the horizontal field of view of the lens δ 0 , to determine the number of single-station photography for each photography base station

[0026] (2) According to the maximum depth of field Y of the CCD lens max , to determine the best camera station baseline length B, and in actual production practice, usually choose Y max It is more suitable as the baseline length of the camera station;

[0027] (3) Control point S in the area to be tested 1 Strictly level the composite instrument, and it is known that S 1 The relative object space coordinates of the point (Xs 1 , Ys 1 , Zs 1 ), first use the c...

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Abstract

The present invention discloses a CCD combination total station photography base station photogrammetry method. The CCD combination total station photography base station photogrammetry method is as follows: a CCD camera is rigidly combined with a total station, the photography number of panoramic photography is determined according to CCD camera view field angle, baseline length of a photography base station is determined according to CCD camera maximal field depth value, object space coordinates of at least two feature points of a to-be-measured target object and exterior orientation element values of the CCD camera during photography of each photograph can be measured accurately by use of the total station, panoramic photography and panoramic measurement can be completed by successive rotation of corresponding horizontal angles, and then the operation is repeated on another image pair observation point to complete photography and measurement and make a record.

Description

[0001] 1. Technical field [0002] The invention relates to a new photogrammetry method, in particular to a photogrammetry method using a CCD combined total station to photograph a base station. [0003] 2. Technical background [0004] So far, engineering surveying mainly uses surveying and mapping instruments such as traditional total stations, and with the rapid development of photogrammetry, it has gradually become a trend to apply photogrammetry to engineering surveying, but it is still limited to a single In the stage of total station measurement and preliminary application of photogrammetry, these limitations in the stage of engineering measurement are becoming more and more obvious in today's digital information development: [0005] ①Using the traditional total station measurement can only realize the measurement of each point one by one, the workload is heavy and the efficiency is low; [0006] ②Traditional total station is used for measurement, and only text files c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/00
CPCG01C11/00
Inventor 冯仲科刘金成杨立岩
Owner BEIJING FORESTRY UNIVERSITY
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