Suppression of border effects in moiré techniques using three-dimensional methods

Abstract

Methods to generate three-dimensional images using moiré techniques with segmentation and reconstruction are presented. Moiré techniques have been employed in many areas, presenting alternatives to laser scanner for research and technical applications. However, one challenge for the widespread use of moiré techniques is associated with the reliability in presenting object images that are free of noise effects at their edges; these are associated with shade areas generated by the illumination process. Three-dimensional views under multiple angles could overcome this limitation. Two methods for the observation and reconstruction of images to obtain the desired section of the reproduced object were adopted. They were tested on distinct object shapes; the image reconstructions exhibited the ability to reproduce regular as well as irregular body geometries.