We propose a method to extend the depth of focus in a particle field measurement using a single-shot digital hologram. A focal plane is obtained for each pixel based on an entropy method, and a depth map is subsequently extracted. A synthesized extended focused image is determined correspondingly using the extracted depth map. In addition, a wavelet modulus maxima algorithm and Canny algorithm are further employed to detect the edges of each particle, and the sizes and a three-dimensional localization of the particles are also estimated. Preliminary results are presented to show the feasibility and effectiveness of the proposed technique.
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Complexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, FranceComplexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, France
Coëtmellec, S
Lebrun, D
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Complexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, FranceComplexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, France
Lebrun, D
Özkul, C
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Complexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, FranceComplexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, France
机构:
Complexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, FranceComplexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, France
Coëtmellec, S
Lebrun, D
论文数: 0引用数: 0
h-index: 0
机构:
Complexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, FranceComplexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, France
Lebrun, D
Özkul, C
论文数: 0引用数: 0
h-index: 0
机构:
Complexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, FranceComplexe Rech Interprofess Aerothermochim, UMR 6614, Grp Opt & Optron, F-76801 St Etienne Du Rouvray, France