Calculating depth maps from digital holograms using stereo disparity

被引:12
作者
Pitkaaho, Tomi [1 ]
Naughton, Thomas J. [1 ,2 ]
机构
[1] Univ Oulu, RFMedia Lab, Oulu So Inst, Ylivieska 84100, Finland
[2] Natl Univ Ireland Maynooth, Dept Comp Sci, Maynooth, Kildare, Ireland
基金
芬兰科学院; 爱尔兰科学基金会;
关键词
D O I
10.1364/OL.36.002035
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Depth extraction is an important aspect of three-dimensional (3D) image processing with digital holograms and an essential step in extended focus imaging and metrology. All available depth extraction techniques with macroscopic objects are based on variance; however, the effectiveness of this is object dependent. We propose to use disparity between corresponding points in intensity reconstructions to determine depth. Our method requires a single hologram of a scene, from which we reconstruct two different perspectives. In the reconstruction the phase information is not needed, which makes this method useful for in-line digital holography. To our knowledge disparity based 3D image processing has never been proposed before for digital holography. (C) 2011 Optical Society of America
引用
收藏
页码:2035 / 2037
页数:3
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