TY - GEN
T1 - PDE-based interpolation method for optically visualized sound field
AU - Yatabe, Kohei
AU - Oikawa, Yasuhiro
PY - 2014/1/1
Y1 - 2014/1/1
N2 - An effective way to understand the behavior of a sound field is to visualize it. An optical measurement method is a suitable option for this as it enables contactless non-destructive measurement. After measuring a sound field, interpolation of the data is necessary for a smooth visualization. However, conventional interpolation methods cannot provide a physically meaningful result especially when the condition of the measurement causes moiré effect. In this paper, a special interpolation method for an optically visualized sound field based on the Kirchhoff-Helmholtz integral equation is proposed.
AB - An effective way to understand the behavior of a sound field is to visualize it. An optical measurement method is a suitable option for this as it enables contactless non-destructive measurement. After measuring a sound field, interpolation of the data is necessary for a smooth visualization. However, conventional interpolation methods cannot provide a physically meaningful result especially when the condition of the measurement causes moiré effect. In this paper, a special interpolation method for an optically visualized sound field based on the Kirchhoff-Helmholtz integral equation is proposed.
KW - Schlieren imaging
KW - Sound field visualization
KW - laser Doppler vibrometer (LDV)
KW - partial differential equation (PDE)
UR - http://www.scopus.com/inward/record.url?scp=84905252493&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84905252493&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2014.6854501
DO - 10.1109/ICASSP.2014.6854501
M3 - Conference contribution
AN - SCOPUS:84905252493
SN - 9781479928927
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 4738
EP - 4742
BT - 2014 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2014
Y2 - 4 May 2014 through 9 May 2014
ER -