Three dimensional digital holographic profiling of micro-fibers.
A method to measure the size, orientation, and location of opaque micro-fibers using digital holography is presented. The method involves the recording of a digital hologram followed by reconstruction at different depths. A novel combination of automated image analysis and statistical techniques, applied on the intensity of reconstructed digital holograms is used to accurately determine the characteristics of the micro-fibers. The performance of the proposed method is verified with a single fiber of known length and orientation. The potential of the method for measurement of fiber length is further demonstrated through its application to a suspension of fibers in a liquid medium.
Kempkes
Michel
M
School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459.
Darakis
Emmanouil
E
Khanam
Taslima
T
Rajendran
Arvind
A
Kariwala
Vinay
V
Mazzotti
Marco
M
Naughton
Thomas J
TJ
Asundi
Anand K
AK
D000465:Algorithms; D006696:Holography / Q000379:methods*; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D008863:Microspheres; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity