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Persistent Scatterer Interferometry (PSI) is a multi-epoch InSAR method for measuring displacements of Earth's surface over time by exploring the interferometric phase of constantly coherent points, named Persistent Scatterer (PS). PSI has shown its superior capability to monitor linear features with long-distance and large-span characteristics. Nevertheless, the interpretation of estimated displacements over PS is a challenge to overcome. Here, we propose a target characterization approach for multi-epoch InSAR post-processing to efficiently correlate the target's possible deformation types and corresponding deformation characteristics. The PS targets were categorized into elevated (ELV) and ground (GRD) groups. The deformation signals are assigned into four types: Defo-Type I stable, Defo-Type II shallow, Defo-Type III structural, and Defo-Type IV mixed deformation based on the ELV versus GRD differential …