Abstract
Due to the interference between two sets of repetitive gratings Moire fringes are generated. These patterns are also used in metrology for the measurements of surface profilometry, 3D surface reconstruction and so on. Recently it is approached as an emerging tool in the fields of biomedical engineering fields - particularly in biomechanics and bio-sensing. Conventional Moire interferometry evaluates the interference of two light waves being reflected on a reference surface and the object to be profiled. However, difficulties in satisfying the requirements for the current significant issues in obtaining accurate dimensional information as well as dimensional deformation are dealing with micro-level and nano-level in an on-line inspection environment. Particularly, in the present real-time biomedical inspection of auto-inspection and auto-operation of inner organs of human body needs precise information of inner movements. In that case single light wave system makes the Moire sensing system easier and applicable in real-time imaging. However, modeling the sensing system based on CCD parameters of the camera and its application in capturing of Moire images make the systems challenging as well.
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