CCD image sensor induced error in PIV applications

Legrand, Mathieu; Nogueira, J; Vargas, A. A.; Ventas Garzón, Rubén y Rodríguez Hidalgo, María del Carmen (2014). CCD image sensor induced error in PIV applications. "Measurement Science and Technology", v. 6 (n. 25); pp. 1-13. ISSN 0957-0233. https://doi.org/10.1088/0957-0233/25/6/065207.

Descripción

Título: CCD image sensor induced error in PIV applications
Autor/es:
  • Legrand, Mathieu
  • Nogueira, J
  • Vargas, A. A.
  • Ventas Garzón, Rubén
  • Rodríguez Hidalgo, María del Carmen
Tipo de Documento: Artículo
Título de Revista/Publicación: Measurement Science and Technology
Fecha: Mayo 2014
Volumen: 6
Materias:
Escuela: E.T.S.I. Navales (UPM)
Departamento: Arquitectura, Construcción y Sistemas Oceánicos y Navales (Dacson)
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

The readout procedure of charge-coupled device (CCD) cameras is known to generate some image degradation in different scientific imaging fields, especially in astrophysics. In the particular field of particle image velocimetry (PIV), widely extended in the scientific community, the readout procedure of the interline CCD sensor induces a bias in the registered position of particle images. This work proposes simple procedures to predict the magnitude of the associated measurement error. Generally, there are differences in the position bias for the different images of a certain particle at each PIV frame. This leads to a substantial bias error in the PIV velocity measurement (~0.1 pixels). This is the order of magnitude that other typical PIV errors such as peak-locking may reach. Based on modern CCD technology and architecture, this work offers a description of the readout phenomenon and proposes a modeling for the CCD readout bias error magnitude. This bias, in turn, generates a velocity measurement bias error when there is an illumination difference between two successive PIV exposures. The model predictions match the experiments performed with two 12-bit-depth interline CCD cameras (MegaPlus ES 4.0/E incorporating the Kodak KAI-4000M CCD sensor with 4 megapixels). For different cameras, only two constant values are needed to fit the proposed calibration model and predict the error from the readout procedure. Tests by different researchers using different cameras would allow verification of the model, that can be used to optimize acquisition setups. Simple procedures to obtain these two calibration values are also described.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaENE2006-13617TERMOPIVSin especificarCombustión y transferencia de calor analizadas con PIV avanzado
Gobierno de EspañaENE2011-28024TERMOPIV IISin especificarSin especificar

Más información

ID de Registro: 36088
Identificador DC: http://oa.upm.es/36088/
Identificador OAI: oai:oa.upm.es:36088
Identificador DOI: 10.1088/0957-0233/25/6/065207
URL Oficial: http://iopscience.iop.org/article/10.1088/0957-0233/25/6/065207
Depositado por: Memoria Investigacion
Depositado el: 26 Oct 2015 15:54
Ultima Modificación: 26 Oct 2015 15:54
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