Год выпуска: 2014 Автор: Jonathan Maycock and Bryan Hennelly Издательство: LAP Lambert Academic Publishing Страниц: 232 ISBN: 9783659539008
Описание
Digital holography is a two step process of recording a hologram on an electronic sensor and reconstructing it numerically. This book focuses on the second step of this process and can be split into two distinct parts: A) speckle reduction in reconstructions of digital holograms (DHs), and B) modeling and overcoming partial occlusion effects and then using occlusions to reduce the effects of the twin image in reconstructions of DHs. We have developed a number of techniques to reduce the corruptive effect of speckle on reconstructions of DHs. These techniques range from 3D filtering, a discrete Fourier filter approach and the most commonly used industrial speckle reduction technique - wavelet filters. In the second half of the book, we investigate the nature of opaque and non-opaque partial occlusions. We motivate this work by trying to find a subset of pixels that overcome the effects of a partial occlusion, thus revealing otherwise hidden features on an object. Finally, we have used...
