Abstract
Autostereoscopic displays based on lenticular arrays have reduced
resolution in the horizontal direction with respect to the vertical
due to the distribution of the horizontal pixels between the different
views. One known method is to use a slanted lenticular array in order
to increase horizontal resolution at the expense of the vertical.
In this paper, we propose a different approach to circumvent the displayed
resolution limitation by taking advantage of the lower acuity of the
eye to chroma than luma. This is done by downsampling the interlaced
multiview display image at the color subpixel level. The chromatic
information is in effect subsampled in the horizontal dimension (assuming
a vertically arranged subpixel structure of the display), while enhancement
of luma resolution is achieved. By appropriate slanting of the lenticular
so as to minimize Moiré effects, the chroma is on average sampled
evenly over the different views; therefore, chromatic distortion is
also minimized. The vertical sampling rate is not decreased in this
method; therefore, the total perceived light field resolution is enhanced.
We demonstrate an example with an increase in number of views by 40%
for a given lenticular and display setup.
© 2014 IEEE
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