as an important non-destructive detection technology
can image the shallow subsurface accurately and quickly to obtain the spatial and geometric information of the buried targets.This paper describes and summarizes seven detection methods of hyperbolic signatures in GPR images
i.e.
based on hyperbolic properties
based on the time domain signal analysis
based on the digital image analysis
based on the machine learning
based on the mathematical model
based on the comprehensive and deep learning methods.Finally
we discuss the application potential of the deep learning method for the recognition of hyperbolic signatures.