Pixel resolution control in numerical reconstruction of digital holography.
A new method for resolution control in numerical reconstruction of digital holography is proposed. The wave field on a tilted or vertical plane can be reconstructed without being subject to the minimum object-to-hologram distance requirement, and the pixel resolution can be easily controlled by adjusting the position of a transitional plane. The proposed method solves the problem of pixel resolution control for small object-to-hologram distances and is especially useful for multicolor, multiwavelength digital holography and metrological applications. Experimental results are presented to verify the idea.
Yu
Lingfeng
L
Deptment of Physics, University of South Florida, Tampa, Florida 33620, USA. yulingfeng@gmail.com
Kim
Myung K
MK
D000465:Algorithms; D006696:Holography / Q000379:methods*; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D009716:Numerical Analysis, Computer-Assisted; D012031:Refractometry / Q000379:methods*; D012815:Signal Processing, Computer-Assisted