Abstract

We develop and experimentally test a method for three-dimensional imaging of hidden objects in a scattering medium. In our scheme, objects hidden between two biological tissues at different depths from the viewing system are recovered, and their three-dimensional locations are computed. Analogous to a fly’s two eyes, two microlens arrays are used to observe the hidden objects from different perspectives. At the output of each lens array we construct the objects from several sets of many speckled images with a previously suggested technique that uses a reference point. The differences of the reconstructed images in both arrays with respect to the reference point yield the information regarding the relative depth among the various objects.

© 2006 Optical Society of America

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References

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    [CrossRef]

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Figures (3)

Fig. 1
Fig. 1

Schematic diagram of the proposed stereoscopic NOISE system. The lower block diagram describes the computational process of each channel.

Fig. 2
Fig. 2

Perspective projection geometry of the object and the reference point through each channel.

Fig. 3
Fig. 3

Summary of the imaging results obtained by NOISE-3D.

Equations (3)

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x R , L cos θ f B R , L z p , ( x R , L d R , L ) cos θ f B R , L h z o ,
z o = B f z p B f z p D cos θ ,
D = D ̃ + 2 f t sin ϕ z o ( 1 cos ϕ n 2 sin 2 ϕ ) ,

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