标题: ScritterHDR: Multiplex-Hidden Imaging on High Dynamic Range Projection [打印本页] 作者: 彬彬 时间: 2012-1-3 10:52 标题: ScritterHDR: Multiplex-Hidden Imaging on High Dynamic Range Projection 1 Motivation: Multiplex-Hidden Imagery
We propose a system that enables the display of multiplex-hidden
images for selected users with highly accessible polarizing filters.
This system requires no electronic devices for users. It is designed
with high dynamic range (HDR) projection technology and realizes
the display of multiplexed content with HDR. Recently, research
into HDR projection technology has made a lot of progress. Such
HDR technology can realize digital cinemas with high quality and
clear visibility of digital content even in daylight. Thus, we expect
the system to extend the expression of digital content and to be applicable
to future cinemas, digital signage and virtual environments.
2 Image Hiding Algorithm
We have developed an image hiding algorithm in [Koki. N. and N. ]
allowing the system to display a secret image for certain users while
displaying another image for others. While an image is visible with
the naked eye, a hidden image is only visible through polarizing
glasses. The image hiding technique with active shutter glasses
proposed by [McDowall et al. 2004] and [Mistry 2009] can realize
multiple channels at the same time for different users, but the
complexity of the electronic device degrades the quality of images
(e.g. brightness, color management). On the other hand, with our
technique, the available contents are easily switchable by putting
on and taking off simple polarizing filters (Fig.1-(a)).作者: 彬彬 时间: 2012-1-13 14:39