A novel extension of cross-correlation particle image velocimetry (PIV), based on false correlation symmetry (FCS) around the real signal peak, is proposed to detect the true displacement correlation below noise level at poor signal conditions. The technique is introduced in the light of the main influential parameters, namely particle image loss, velocity gradients, correlation overlapping, and non-uniform illumination. Searching for FCS in the Fourier domain and among correlation peaks is examined. The latter is evaluated by Monte-Carlo simulation on synthetic PIV images and also on a real vortex shedding flow field. Lower than one detectability (D 0 < 1) and the possibility to achieve higher spatial resolution are the clear merits of using FCS.
Experiments in Fluids – Springer Journals
Published: Dec 31, 2000
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera