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: 2020-12-11
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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[0046] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.
[0047] Also, in the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the 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.
[0048]In addition, the steps shown in the flow ...
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A method for detecting a damaged state of a building, comprising: extracting a cross-section of point cloud data of a building to be analyzed; In the YOZ coordinate plane; respectively extract the feature parameters of the first projection point connection line and the second projection point connection line; determine the profile similarity of the first effective profile and the second effective profile according to the first feature parameter and the second feature parameter, and The damage state of the building to be analyzed is determined according to the profile similarity. The method can automatically analyze the building, so that not only can the analysis result of the damaged state of the building be obtained more quickly, but also avoid the interference caused by manual operation on the analysis result, thereby improving the accuracy and reliability of the analysis result , the method also realizes the quantitative analysis of the damage state of the building (especially the damage state of the roof of the building).
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] Earthquakes are natural disasters that seriously threaten the safety of people's lives and properties. Since 1949, the number of deaths caused by earthquakes in my country has accounted for more than half of the number of deaths caused by natural disasters. According to the research results of earthquake prediction on a ten-year scale, before 2020, there may be many earthquakes of magnitude 7 or above in mainland China, and there may even be a huge earthquake of magnitude 8 or so. Efforts to improve the ability to respond to sudden earthquake disasters, especially earthquake catastrophes, and to protect the safety of the country and people's lives and property have always been an important aspect of our government's earthquake prevention and disaster reduction work. [0003]...
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IPC IPC(8): G06K9/34G06T7/62
CPCG06T7/62G06T2207/10028G06V10/267
Inventor 窦爱霞王晓青丁玲王书民丁香袁小祥
Owner INST OF EARTHQUAKE SCI CHINA EARTHQUAKE ADMINISTATION