Abstract

Conventional integral-imaging systems utilize lenslet arrays with fixed focal lengths and aperture sizes. We propose a time-multiplexed integral-imaging method that enhances both the depth of focus and the resolution of a three-dimensional image by displaying it with an array of lenslets with different focal lengths and aperture sizes. The nonuniform lenslet parameters (focal lengths and aperture sizes) for our method are calculated. Our theoretical analysis indicates that significant improvements in both depth of focus and resolution can be obtained with the proposed technique.

© 2003 Optical Society of America

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References

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  1. G. Lippmann, C. R. Acad. Sci. 146, 446 (1908).
  2. T. Okoshi, Proc. IEEE 68, 548 (1980).
    [CrossRef]
  3. J. Arai, F. Okano, H. Hoshino, and I. Yuyama, Appl. Opt. 37, 2034 (1998).
    [CrossRef]
  4. J.-S. Jang and B. Javidi, Opt. Lett. 27, 324 (2002).
    [CrossRef]
  5. J.-S. Jang, F. Jin, and B. Javidi, Opt. Lett. 28, 1421 (2003).
    [CrossRef] [PubMed]
  6. J.-S. Jang and B. Javidi, Appl. Opt. 42, 1996 (2003).
    [CrossRef] [PubMed]

2003 (2)

2002 (1)

1998 (1)

1980 (1)

T. Okoshi, Proc. IEEE 68, 548 (1980).
[CrossRef]

1908 (1)

G. Lippmann, C. R. Acad. Sci. 146, 446 (1908).

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Figures (6)

Fig. 1
Fig. 1

(a) Pickup and (b) reconstruction of a 3-D image.

Fig. 2
Fig. 2

Ray integration to produce 3-D images in II. (a) LIP=IIP. (b) LIPIIP.

Fig. 3
Fig. 3

(a) Depth of focus for a lenslet. (b) Positions of LIPs when lenslets with different focal lengths and sizes are used.

Fig. 4
Fig. 4

Arrangement of different lenslets in the array.

Fig. 5
Fig. 5

Method for obtaining elemental images by ray mapping. The object surfaces represented by the thick dotted curve, the thick solid curves, and the thick dashed curves are mapped into the pickup surfaces corresponding to the i-1th pinhole, the ith pinhole, and the i+1th pinhole, respectively.

Fig. 6
Fig. 6

Time-multiplexed II system adopting the MALT.

Tables (1)

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Table 1 Calculation Example of Lenslet Parameters and LIPs

Equations (7)

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R=1/s=di/2λLi.
D=2Δzf=4λLi2/di2.
DR2=1/λ.
Li+1=Li+D=Li+4λLi2/di2,
di+1=di+4λLi/di=di+2s,
fi+1=gLi+1/g+Li+1.
Spxi,yi,-g=Cdi2Sogxi-z,gyi-z,z,

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