Patent ID: 11900630
Assignee: ZHEJIANG UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G  F | IPC F  G

Claim 1:
2. The method for detecting leakage of a water supply pipe based on ground-penetrating radar three-dimensional image attribute analysis according to claim 1, wherein said de-noising and filtering the original image data in the step 2 comprises: removing DC, zero-time correcting, enhancing amplitude and band-pass filtering; and
firstly, DC components of acquired original radar image signals are set to zero by using a Subtract-DC-Shift module in a one-dimensional filtering function of a universal radar processing software reflexw, so as to achieve a purpose of removing DC and removing zero drift; a first negative peak value or positive peak value of a direct wave is selected as a zero-time correction point by using a Move start time module in a static correction function of the reflexw, and the time of the position is set to 0; finally, the amplitudes of weak signals at depth are amplified by using an Energy decay module in a gain function of the reflexw, frequency signals within a particular range are selected by using a bandpassbutterworth module in the one-dimensional filtering function of the reflexw, high-frequency signals are allowed to pass to a maximum extent, and low-frequency signals are attenuated and suppressed.