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|Title: ||Psycho-physical limits of interocular blur suppression and its application to asymmetric stereoscopic video delivery|
|Authors: ||De Silva, Demuni V.S.X.|
Kodikara Arachchi, Hemantha
Savas, Saadet S.
|Keywords: ||Asymmetric coding|
Interocular blur suppression
Stereoscopic video delivery
|Issue Date: ||2012|
|Publisher: ||© IEEE|
|Citation: ||DE SILVA, V. ... et al., 2012. Psycho-physical limits of interocular blur suppression and its application to asymmetric stereoscopic video delivery. IN: Proceedings of the 2012 19th IEEE International Packet Video Workshop (PV 2012), Munich, Germany, 10-11 May 2012, pp.184-189.|
|Abstract: ||It is well known that when the two eyes are provided
with two views of different resolutions the overall perception is
dominated by the high resolution view. This property, known as
binocular suppression, is effectively used to reduce the bit rate
required for stereoscopic video delivery, where one view of the
stereo pair is encoded at a much lower quality than the other.
There have been significant amount of effort in the recent past to
measure the just noticeable level of asymmetry between the two
views, where asymmetry is achieved by encoding views at two
quantization levels. However, encoding artifacts introduce both
blurring and blocking artifacts in to the stereo views, which are
perceived differently by the human visual system. Therefore, in
this paper, we design a set of psycho-physical experiments to
measure the just noticeable level of asymmetric blur at various
spatial frequencies, luminance contrasts and orientations. The
subjective results suggest that humans could tolerate a significant
amount of asymmetry introduced by blur, and the level of
tolerance is independent of the spatial frequency or luminance
contrast. Furthermore, the results of this paper illustrate that
when asymmetry is introduced by unequal quantization, the just
noticeable level of asymmetry is driven by the blocking artifacts.
In general, stereoscopic asymmetry introduced by way of
asymmetric blurring is preferred over asymmetric compression.
It is expected that the subjective results of this paper will have
important use cases in objective measurement of stereoscopic
video quality and asymmetric compression and processing of
|Description: ||© 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.|
|Sponsor: ||The work reported in this paper is funded by the 'ROMEO'
Project funded by the European Union’s 7th Framework
|Version: ||Accepted for publication|
|Publisher Link: ||http://dx.doi.org/10.1109/PV.2012.6229734|
|Appears in Collections:||Conference Papers and Presentations (Loughborough University London)|
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