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 manual interpretation speed cannot meet the rapid assessment of post-earthquake disaster, and achieve the effect of avoiding interference and improving accuracy and reliability.
Active Publication Date: 2020-08-18
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
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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[0039] 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.
[0040] 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.
[0041] In addition, the steps shown in the flow dia...
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A building damage state detection method comprises: performing cross-section extraction on point cloud data of a building to be analyzed; respectively projecting the cloud data of first effective section points and the cloud data of second effective section points into a YOZ coordinate plane, and correspondingly obtaining a first projection point connection line and a second projection point connection line; respectively determining compactness of polygons formed by the first and second projection point connection lines, and, correspondingly obtaining the first compactness and the second compactness; and determining section similarity of first and second effective sections, and determining a damage state of the building to be analyzed is determined according to the section similarity. Compared with the existing method adopting manual interpretation for determination and identification, the method is advantageous in that the building can be automatically analyzed based on a pattern of the building to be analyzed, a damage state analysis result of the building can be obtained quickly in this way, interference, caused by manual operation, on the analysis result is prevented at the same time, and then accuracy and reliability of the analysis result 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] However, limited by post-earthquake tr...
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IPC IPC(8): G06T7/00G06T7/62
CPCG06T7/0002G06T7/62G06T2207/10028G06T2207/20068
Inventor 窦爱霞王晓青袁小祥丁玲王书民丁香
Owner INST OF EARTHQUAKE SCI CHINA EARTHQUAKE ADMINISTATION