TY - GEN
T1 - Applying single-pixel ensemble correlation to process of calculating the displacements in background oriented schlieren
AU - Sugisaki, Hikaru
AU - Lee, Chugil
AU - Ozawa, Yuta
AU - Nakai, Kumi
AU - Saito, Yuji
AU - Nonomura, Taku
AU - Asai, Keisuke
AU - Matsuda, Yu
N1 - Funding Information:
The present study was supported by the Japan Society for the Promotion of Science (JSPS), KAKENHI Grant No. 20H00278, and by the Japan Science and Technology Agency (JST), PREST Grant No. JPMJPR187A and FOREST Grant No. JPMJFR202C. Y. Ozawa was supported by JSPS KAKENHI Grant No. 19H00800. K. Nakai was supported by JST CREST Grand No. JPMJCR1763. C. Lee was supported by JSPS, KAKENHI Grants No. JP21J20744.
Publisher Copyright:
© 2022, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2022
Y1 - 2022
N2 - Background-oriented schlieren (BOS) system proposed in this paper realizes high-spatial resolution by applying the single-pixel correlation method for the image pairs obtained in the process of BOS. The backgrounds are projected by a high-speed projector and changed at 900 Hz for calculation of the pixel-to-pixel correlation. The proposed method is compared with the conventional method which utilizes the constant background and the conventional spatial correlation. The results show that the proposed system enables to obtain the higher-resolution displacement distribution than conventional one.
AB - Background-oriented schlieren (BOS) system proposed in this paper realizes high-spatial resolution by applying the single-pixel correlation method for the image pairs obtained in the process of BOS. The backgrounds are projected by a high-speed projector and changed at 900 Hz for calculation of the pixel-to-pixel correlation. The proposed method is compared with the conventional method which utilizes the constant background and the conventional spatial correlation. The results show that the proposed system enables to obtain the higher-resolution displacement distribution than conventional one.
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U2 - 10.2514/6.2022-4132
DO - 10.2514/6.2022-4132
M3 - Conference contribution
AN - SCOPUS:85135382482
SN - 9781624106354
T3 - AIAA AVIATION 2022 Forum
BT - AIAA AVIATION 2022 Forum
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA AVIATION 2022 Forum
Y2 - 27 June 2022 through 1 July 2022
ER -