Investigation of urban atmospheric visibility by high-frequency extraction: Model development and field test

This work investigates atmospheric visibility by employing two statistical processes for high-frequency extraction: Sobel operator and fast Fourier transform (FFT). In replacing the traditional measurement methods for atmospheric visibility, the new approaches can provide accurate digital data urban...

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Veröffentlicht in:	Atmospheric environment (1994) 2005-05, Vol.39 (14), p.2545-2552
Hauptverfasser:	Luo, Chin-Hsiang, Wen, Che-Yen, Yuan, Chung-Shin, Liaw, Jiun-Jian, Lo, Cho-Ching, Chiu, Shih-Hsuan
Format:	Artikel
Sprache:	eng
Schlagworte:	Air quality Analysis methods Applied sciences Atmospheric pollution Exact sciences and technology Frequency extraction Image processing Pollution Visibility
Online-Zugang:	Volltext
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