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Color imaging with an integrated compound imaging system

Jun Tanida, Rui Shogenji, Yoshiro Kitamura, Kenji Yamada, Masaru Miyamoto, and Shigehiro Miyatake

Open Access Open Access

Abstract

Color-imaging methods with an integrated compound imaging system called TOMBO (Thin observation module by bound optics) are presented. The TOMBO is a compact optoelectronic imaging system for image capturing based on compound-eye imaging and postdigital processing. First, a general description of the TOMBO system is given, and then two configurations for color imaging are described. Experimental comparison of these configurations is made by use of an experimental TOMBO system. The characteristics and the performance on the proposed methods are briefly discussed.

©2003 Optical Society of America

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Figures (8)
Fig. 1.
Fig. 1. Hardware configuration of the TOMBO system.

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Fig. 2.
Fig. 2. Principle of the pixel rearrange method.

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Fig. 3.
Fig. 3. Two methods for color imaging for µ=4 and ν=8. For the color channels, green1, green2, red, and blue are assumed.

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Fig. 4.
Fig. 4. Observation direction of individual pixels. Color separation (a) by units and (b) by pixels.

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Fig. 5.
Fig. 5. Picture of an experimental TOMBO system.

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Fig. 6.
Fig. 6. Experimental result of color imaging with the color separation by units. (a) Compound image, (b) unit images, and (c) reconstructed image.

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Fig. 7.
Fig. 7. Experimental result of color imaging with the color separation by pixels. (a) Compound image, (b) unit images, (c) reconstructed image.

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Fig. 8.
Fig. 8. Experimental result of color imaging for a color chart: (a) target object, (b) reconstructed image by the method of the color separation by units, (c) reconstructed image by the method of the color separation by pixels.

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Tables (1)

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Table 1. SNR for the Nine Parts of the Reconstructed Images *

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Equations (1)

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SNR = ∑ i S max ∑ i E i N
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