McElhinney, Conor P. and Maycock, Jonathan and Hennelly, Bryan M. and Naughton, Thomas J. and McDonald, John and Javidi, Bahram
(2006)
Extraction and reconstruction of shape information
from a digital hologram of three-dimensional objects.
In:
IMVIP 2006 : Proceedings of the Irish Machine Vision and Image Processing Conference 2006.
Vision System Group, DCU, pp. 76-83.
ISBN 9780955388507
Abstract
We present a technique to convert a digital hologram of a three-dimensional object into a surface
profile of the object. A depth-from-defocus technique is used to generate a depth map for a particular
reconstructed perspective of the scene. The Fresnel transform is used to effect defocus. This depth
map is then used to create an extended focused image of the object. Through the combination of the
extended focused image and the depth map we are able to reconstruct a pseudo three-dimensional
representation of the object. Our method produces depth maps of a significantly higher resolution
than current autofocus methods. The technique could be used in registration and three-dimensional
object recognition applications.
| Item Type: |
Book Section
|
| Keywords: |
digital holography; scene reconstruction; 3D shape measurement; three-dimensional image processin; |
| Academic Unit: |
Faculty of Science and Engineering > Computer Science |
| Item ID: |
8303 |
| Depositing User: |
John McDonald
|
| Date Deposited: |
09 Jun 2017 15:32 |
| Publisher: |
Vision System Group, DCU |
| Refereed: |
Yes |
| Funders: |
Enterprise Ireland, Science Foundation Ireland |
| URI: |
|
| Use Licence: |
This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available
here |
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