NAFE contrast enhanced images (region A with a size of 320 Mm × 160 Mm) of different AIA wavelengths at 12:00 UT on November 16: (a) λ304 Å, (b) λ171 Å, (c) λ193 Å, and (d) λ211 Å. We detect the counter-streaming flows in the time-lapse movies of the high-cadence data set (see online movie). The white square (region B) outlines the 32 Mm × 32 Mm region to which we apply LCT to track the counter-streaming flows (Fig. 8). The white arrows show location and direction of the counter-streaming flows along the spine. The white contour encloses the location of the filament’s spine in Hα.