Building damage state detection method
A state detection and building technology, applied in image data processing, instruments, calculations, etc., can solve the problem that the speed of manual interpretation cannot meet the rapid assessment of disasters after earthquakes, and achieve the effect of avoiding interference and improving accuracy and reliability
Active Publication Date: 2018-11-30
INST OF EARTHQUAKE SCI CHINA EARTHQUAKE ADMINISTATION
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Problems solved by technology
Under the conditions of underdeveloped computer technology and small survey area, manual interpretation and judgment can still meet the needs of post-earthquake disaster assessment.
However, as more and more areas need to be investigated, the speed of manual interpretation can no longer meet the needs of rapid disaster assessment after the earthquake.
Method used
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[0043] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so that how the present invention uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. It should be noted that, as long as there is no conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, and the technical solutions formed are all within the protection scope of the present invention.
[0044] Also, in the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without the specific details or in the particular manner described.
[0045] In addition, the steps shown in the flow diagr...
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The invention discloses a building damage state detection method. The method comprises the following steps of: extracting a cross section of point cloud data of a to-be-analyzed building; respectivelyprojecting point cloud data of a first effective section and point cloud data of a second effective section into a YOZ coordinate plane parallel to the cross section; respectively determining position parameters of a first project point connected line and a second projection point connected line; and determining a section similarity between the first effective section and the second effective section according to the first position parameter and the second position parameter, and determining a damage state of the to-be-analyzed building according to the section similarity. Compared with existing manual understanding and judging manner, the method is capable of automatically analyzing buildings on the basis of graphs of to-be-analyzed buildings, so that damage state analysis results of thebuildings can be obtained more rapidly, interferences caused to the analysis results by manual operations are avoided, and then the correctness and reliability of the analysis results are improved.
Description
technical field [0001] The invention relates to the technical field of earthquake disaster detection, in particular to a method for detecting a damaged state of a building. Background technique [0002] After severe destructive earthquakes, the rapid and comprehensive acquisition of earthquake disaster information has always been an important bottleneck affecting the effectiveness of earthquake emergency command, emergency rescue, and disaster loss assessment. Quickly determining the degree of earthquake disaster and the extent of the disaster after the earthquake is the actual demand for earthquake emergency rescue; after the earthquake, a large number of people rushed to the earthquake site to carry out disaster investigations, working day and night, the purpose is to grasp the distribution of the degree of earthquake damage as soon as possible, determine the intensity of the earthquake, and estimate the earthquake loss etc. [0003] After severe destructive earthquakes, ...
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IPC IPC(8): G06T7/00G06T7/11G06T7/62G06T7/70
CPCG06T7/0002G06T7/11G06T7/62G06T7/70G06T2207/10028
Inventor 窦爱霞王晓青丁香王书民袁小祥丁玲
Owner INST OF EARTHQUAKE SCI CHINA EARTHQUAKE ADMINISTATION