Share Email Print
cover

Proceedings Paper

Comparison of the different approaches to generate holograms from data acquired with a Kinect sensor
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Data of real scenes acquired in real-time with a Kinect sensor can be processed with different approaches to generate a hologram. 3D models can be generated from a point cloud or a mesh representation. The advantage of the point cloud approach is that computation process is well established since it involves only diffraction and propagation of point sources between parallel planes. On the other hand, the mesh representation enables to reduce the number of elements necessary to represent the object. Then, even though the computation time for the contribution of a single element increases compared to a simple point, the total computation time can be reduced significantly. However, the algorithm is more complex since propagation of elemental polygons between non-parallel planes should be implemented. Finally, since a depth map of the scene is acquired at the same time than the intensity image, a depth layer approach can also be adopted. This technique is appropriate for a fast computation since propagation of an optical wavefront from one plane to another can be handled efficiently with the fast Fourier transform. Fast computation with depth layer approach is convenient for real time applications, but point cloud method is more appropriate when high resolution is needed. In this study, since Kinect can be used to obtain both point cloud and depth map, we examine the different approaches that can be adopted for hologram computation and compare their performance.

Paper Details

Date Published: 15 May 2017
PDF: 6 pages
Proc. SPIE 10233, Holography: Advances and Modern Trends V, 1023314 (15 May 2017); doi: 10.1117/12.2266357
Show Author Affiliations
Ji-Hoon Kang, Korea Institute of Science and Technology (Korea, Republic of)
Korea Univ. (Korea, Republic of)
Thibault Leportier, Korea Institute of Science and Technology (Korea, Republic of)
Korea Univ. of Science and Technology (Korea, Republic of)
Byeong-Kwon Ju, Korea Univ. (Korea, Republic of)
Jin Dong Song, Korea Institute of Science and Technology (Korea, Republic of)
Kwang-Hoon Lee, Korea Photonics Technology Institute (Korea, Republic of)
Min-Chul Park, Korea Institute of Science and Technology (Korea, Republic of)
Korea Univ. of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 10233:
Holography: Advances and Modern Trends V
Miroslav Hrabovský; John T. Sheridan; Antonio Fimia, Editor(s)

© SPIE. Terms of Use
Back to Top