Holographic imaging of full-color real-existing three-dimensional objects with computer-generated sequential kinoforms |
| |
Authors: | Huadong Zheng Tao Wang Linmao Dai and Yingjie Yu |
| |
Affiliation: | Department of Precision Mechanical Engineering,Shanghai University,Shanghai 200072,China |
| |
Abstract: | We propose a computational method for generating sequential kinoforms of real-existing full-color threedimensional (3D) objects and realizing high-quality 3D imaging.The depth map and color information are obtained using non-contact full-color 3D measurement system based on binocular vision.The obtained full-color 3D data are decomposed into multiple slices with RGB channels.Sequential kinoforms of each channel are calculated and reconstructed using a Fresnel-diffraction-based algorithm called the dynamicpseudorandom-phase tomographic computer holography (DPP-TCH).Color dispersion introduced by different wavelengths is well compensated by zero-padding operation in the red and green channels of object slices.Numerical reconstruction results show that the speckle noise and color-dispersion are well suppressed and that high-quality full-color holographic 3D imaging is feasible.The method is useful for improving the 3D image quality in holographic displays with pixelated phase-type spatial light modulators (SLMs). |
| |
Keywords: | |
本文献已被 CNKI 等数据库收录! |