Improved spatial filtering velocimetry and its application in granular flow measurement

Kong Ping¹, Wang Bi-De², Wang Peng^{1, 3}, Zivkovic V⁴, Zhang Jian-Qing^{5, †}

(a) Schematics of array CCD-based SFV measurement system applied to rotating drum. (b) Sample picture of 1-mm diameter glass beads.