TY - JOUR
T1 - On image pre-processing for PIV of single-and two-phase flows over reflecting objects
AU - Deen, N.G.
AU - Willems, P.
AU - Sint Annaland, van, M.
AU - Kuipers, J.A.M.
AU - Lammertink, R.G.H.
AU - Kemperman, A.J.B.
AU - Wessling, Matthias
AU - Meer, van der, W.G.J.
PY - 2010
Y1 - 2010
N2 - A novel image pre-processing scheme for PIV of single-and two-phase flows over reflecting objects which does not require the use of additional hardware is discussed. The approach for single-phase flow consists of image normalization and intensity stretching followed by background subtraction. For two-phase flow, an additional masking step is added after the background subtraction. The effectiveness of the pre-processing scheme is shown for two examples: PIV of single-phase flow in spacer-filled channels and two-phase flow in these channels. The preprocessing scheme increased the displacement peak detectability significantly and produced high quality vector fields, without the use of additional hardware.
AB - A novel image pre-processing scheme for PIV of single-and two-phase flows over reflecting objects which does not require the use of additional hardware is discussed. The approach for single-phase flow consists of image normalization and intensity stretching followed by background subtraction. For two-phase flow, an additional masking step is added after the background subtraction. The effectiveness of the pre-processing scheme is shown for two examples: PIV of single-phase flow in spacer-filled channels and two-phase flow in these channels. The preprocessing scheme increased the displacement peak detectability significantly and produced high quality vector fields, without the use of additional hardware.
U2 - 10.1007/s00348-010-0827-y
DO - 10.1007/s00348-010-0827-y
M3 - Article
SN - 0723-4864
VL - 49
SP - 525
EP - 530
JO - Experiments in Fluids
JF - Experiments in Fluids
IS - 2
ER -