Title :
On FIR filter for signature verification
Author :
Matsuura, Takenobu ; Okamura, Seiji
Author_Institution :
Dept. of Commun. Eng., Tokai Univ., Kanagawa, Japan
Abstract :
This paper discusses the design of a FIR filter for signature verification. The impulse response of the FIR filter can be determined as follows: (1) The autocorrelation functions of the handwriting velocities in the horizontal and vertical directions are respectively regarded as the input and output sequences of the FIR filter. (2) The impulse response of the FIR filter is determined from the input and output sequences. The resulting impulse response can fully describe the dynamics, i.e., the velocity, of handwriting. Signature verification experiments on a data base of one hundred Kanji signatures from six individuals are attempted. Type I error rates are found to be 2-12% while Type II error rates are found to be 0-2%
Keywords :
FIR filters; digital filters; filtering theory; handwriting recognition; FIR filter; Kanji signatures; autocorrelation functions; handwriting velocities; impulse response; input sequences; output sequences; signature verification; Acceleration; Autocorrelation; Error analysis; Feature extraction; Finite impulse response filter; Handwriting recognition; Image analysis; Piecewise linear techniques; Timing; Writing;
Conference_Titel :
Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2972-4
DOI :
10.1109/MWSCAS.1995.504453
