Title :
Detection of small-waving hand by distributed camera system
Author :
Terabayashi, Kenji ; Asano, Hidetsugu ; Nagayasu, Takeshi ; Orimo, Tatsuya ; Ohta, Mutsumi ; Oiwa, Takaaki ; Umeda, Kazunori
Author_Institution :
Dept. of Mech. Eng., Shizuoka Univ., Hamamatsu, Japan
Abstract :
This paper proposes a method to detect small-waving hand from image sequences. The method is based on frequency analysis of intensity value change for each pixel of low-resolution images converted from input images. Handwaving makes periodical change of intensity value of image pixels located in the moving region. The periodical change is detected by thresholding of a value accumulating frequency features obtained through FFT calculation. The proposed method can stably detect small-waving hand with 3-5 Hz in a range of 2-6 m. We demonstrate an application of spatial memory through measuring 3D position of small-waving hand detected by a distributed camera system.
Keywords :
cameras; fast Fourier transforms; feature extraction; image resolution; image sensors; image sequences; position measurement; 3D position measurement; FFT calculation; distributed camera system; frequency 3 Hz to 5 Hz; frequency feature accumulation; image resolution; image sequence; intensity frequency analysis; small-waving hand detection; spatial memory application; wavelength 2 m to 6 m; Cameras; Gesture recognition; Image color analysis; Image sequences; Lighting; Position measurement; Robustness;
Conference_Titel :
Networked Sensing Systems (INSS), 2012 Ninth International Conference on
Conference_Location :
Antwerp
Print_ISBN :
978-1-4673-1784-9
Electronic_ISBN :
978-1-4673-1785-6
DOI :
10.1109/INSS.2012.6240523
