Abstract—The methods for obtaining a controlled magnification
of three-dimensional (3-D) integral images are usually based on the
increase of the spatial ray-sampling rate of elemental image arrays.
This is usually done by use of the moving array-lenslet technique.
The major drawback of this technique is the alignment complexity
due to the small lenslet movement. In this paper, we are proposing
a digital magnification method that uses interpolation principles
to increase the spatial ray sampling rate of elemental image arrays
without lenslet movement in the pickup procedure. We compare
the reconstructed 3-D integral images obtained when using
the optical or the digital magnification methods, and show that the
quality of both reconstructed 3-D integral images is the same.
Index Terms—Image size analysis, integral imaging, integral
photography, interpolation, three-dimensional (3-D) imaging
Abstract—The methods for obtaining a controlled magnification
of three-dimensional (3-D) integral images are usually based on the
increase of the spatial ray-sampling rate of elemental image arrays.
This is usually done by use of the moving array-lenslet technique.
The major drawback of this technique is the alignment complexity
due to the small lenslet movement. In this paper, we are proposing
a digital magnification method that uses interpolation principles
to increase the spatial ray sampling rate of elemental image arrays
without lenslet movement in the pickup procedure. We compare
the reconstructed 3-D integral images obtained when using
the optical or the digital magnification methods, and show that the
quality of both reconstructed 3-D integral images is the same.
Index Terms—Image size analysis, integral imaging, integral
photography, interpolation, three-dimensional (3-D) imaging
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