An efficient scheme for dynamic signature verification

Personal signatures are easily forged because their verification is usually limited to a visual image comparison. This paper presents a dynamic signature verification system. The system analyzes signatures dynamically by considering their shape, time domain characteristics, such as speed and acceleration, and force domain characteristics, i.e. applied pressure. Then it compares these parameters with those of previously obtained master signatures. The results are converted into a percentage match figure to determine whether the signature is qualified as authentic or forgery. Experimental results show 92% authentic signature detection accuracy and 100% forgery signature detection accuracy. This high level of accuracy plus low computation requirements for analysis, make this system a commercially viable solution to the signature identification problem