Application of the Fourier-wavelet transform to moving images in an interview scene

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Kato, Chieko^{a; *} | Endo, Hisashi^b | Saito, Yoshifuru^b | Horii, Kiyoshi^a

Affiliations: [a] Shirayuri College, 1-25 Midorigaoka, Chofu-shi, 182-8525, Tokyo, Japan. Tel.: +81 3 3326 5144 ext.363; Fax: +81 3 3326 7604; E-mail: katoc@bronze.ocn.ne.jp | [b] Graduate School of Engineering, Hosei University, 3-7-2 Kajino, Koganei, 184-8584 Tokyo, Japan. Tel.: +81 42 387 6200; Fax: +81 42 387 6200; Email: ysaitoh@ysaitoh.k.hosei.ac.jp

Correspondence: [*] Corresponding author: Chieko Kato, Shirayuri College, 1-25 Midorigaoka, Chofu-shi, Tokyo 182-8525, Japan. Tel.: +81 3 3326 5144 ext.363; E-mail: katoc@bronze.ocn.ne.jp

Abstract: A new computer-aided method, based on Saito's Fourier-wavelet theory, is used to extract the facial expressions that appear and disappear in less than one-fifth of a second, i.e. expressions that reveal the true emotions of a human being. The new method consists of two major steps. The first step is the application of the Fourier transform to reduce the spatial phase differences between the reference and test images. The second is the application of the wavelet transform to extract the local discontinuous differences. This method is applied to the moving images in the interview scene. Using this method, the difference between the two facial expressions has been extracted, even though both images differ in their size and reference position.

DOI: 10.3233/JAE-2002-481

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 15, no. 1-4, pp. 359-364, 2002