Digitale Bibliotheek
Sluiten Bladeren door artikelen uit een tijdschrift
 
   volgende >>
     Tijdschrift beschrijving
       Alle jaargangen van het bijbehorende tijdschrift
         Alle afleveringen van het bijbehorende jaargang
           Alle artikelen van de bijbehorende aflevering
                                       Details van artikel 1 van 31 gevonden artikelen
 
 
  A New Super-Resolution PIV Accelerated by Characteristic Pixel Selection
 
 
Titel: A New Super-Resolution PIV Accelerated by Characteristic Pixel Selection
Auteur: Y. Yamamoto
T. Uemura
Verschenen in: Journal of visualization
Paginering: Jaargang 6 (2004) nr. 3 pagina's 263-272
Jaar: 2004-09-03
Inhoud: A new high-speed super-resolution PIV was proposed using characteristic pixel selection to accelerate the successive abandonment (SA) with recursive window subdivision. The performance and applicability of the proposed PIV were evaluated. In the SA calculation with the characteristic pixel selection, 1000 candidates are narrowed down to only one at over 50% of the measurement points, and the number of error vectors is reduced because the difference between the cumulative intensities of a correct candidate and of other ones becomes clear due to the characteristics of selected pixels. In all recursive processes, error checks are carefully performed using the summation of the distribution of the cumulative intensity difference distribution, which is suitable for the SA method. In a comparison of the time per velocity vector, the present super-resolution PIV was shown to be 10 times faster than the former ordinary resolution PIV. Another feature of the present super-resolution PIV is that the velocity vectors are obtained in the region very close to the image boundaries and masked regions by using the recursive algorithm.
Uitgever: IOS Press
Bronbestand: Elektronische Wetenschappelijke Tijdschriften
 
 

                             Details van artikel 1 van 31 gevonden artikelen
 
   volgende >>
 
 Koninklijke Bibliotheek - Nationale Bibliotheek van Nederland