A method for detecting a damaged state of a building
A state detection and building technology, applied in image data processing, instruments, calculations, etc., can solve the problem that the manual interpretation speed cannot meet the rapid assessment of post-earthquake disasters, and achieve the effect of avoiding interference and improving accuracy and reliability.
Active Publication Date: 2018-12-18
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.
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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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A method for detecting a damaged state of a building includes extracting a cross section from cloud data of a building to be analyzed; projecting the point cloud data of the first effective section and the point cloud data of the second effective section into YOZ coordinate planes parallel to the transverse section, respectively; determining geometric dimension parameters of a first projection point connection line and a second projection point connection line, respectively; 5, determining the section similarity between the first effective section and the second effective section according tothe first geometrical dimension parameter and the second geometrical dimension parameter, and determining the damaged state of the building to be analyzed accord to the section similarity. Compared with the existing method of artificial interpretation, the method can automatically analyze the buildings based on the graphics of the buildings to be analyzed, so that not only the damage state analysis results of the buildings can be obtained more quickly, but also the interference caused by manual operation on the analysis results can be avoided, and the accuracy and reliability of the analysis results can be 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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Login to View More IPC IPC(8): G06T7/00G06T7/62
CPCG06T7/0002G06T7/62G06T2207/10028
Inventor 窦爱霞王晓青王书民袁小祥丁玲丁香
Owner INST OF EARTHQUAKE SCI CHINA EARTHQUAKE ADMINISTATION