A method for detecting the damaged state of a building
A state detection and building technology, applied in image analysis, image enhancement, instruments, 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: 2020-10-09
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
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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[0042] Hereinafter, the implementation of the present invention will be described in detail with reference to the accompanying drawings and embodiments, so as to fully understand how the present invention applies technical means to solve technical problems and achieve the realization process of technical effects and implement them accordingly. It should be noted that, as long as there is no conflict, each embodiment of 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.
[0043] Meanwhile, in the following description, many specific details are set forth for the purpose of explanation to provide a thorough understanding of the embodiments of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without the specific details or the specific manner described herein.
[0044] In addition...
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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 the damage state of a building. Background technique [0002] After the occurrence of a severely destructive earthquake, the rapid and comprehensive acquisition of earthquake disaster information has always been an important bottleneck affecting the effectiveness of earthquake emergency command, rescue and disaster loss assessment. It is the actual needs of earthquake emergency rescue to quickly determine the extent and scope of the earthquake disaster after the earthquake. After the earthquake, a large number of people rushed to the earthquake site to carry out disaster investigations and work around the clock. Loss etc. [0003] However, post-earthquake traffic conditions, demand for disaster prevention and epidemic prevention, and construction of disaster relief and rescue teams may prevent the field investigators from entering the disast...
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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