Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Assessing 3D scan quality in Virtual Reality through paired-comparisons
  psychophysics test   Consumer 3D scanners and depth cameras are increasingly being used to
generate content and avatars for Virtual Reality (VR) environments and avoid
the inconveniences of hand modeling; however, it is sometimes difficult to
evaluate quantitatively the mesh quality at which 3D scans should be exported,
and whether the object perception might be affected by its shading. We propose
using a paired-comparisons test based on psychophysics of perception to do that
evaluation. As psychophysics is not subject to opinion, skill level, mental
state, or economic situation it can be considered a quantitative way to measure
how people perceive the mesh quality. In particular, we propose using the
psychophysical measure for the comparison of four different levels of mesh
quality (1K, 5K, 10K and 20K triangles). We present two studies within
subjects: in one we investigate the quality perception variations of seeing an
object in a regular screen monitor against an stereoscopic Head Mounted Display
(HMD); while in the second experiment we aim at detecting the effects of
shading into quality perception. At each iteration of the pair-test comparisons
participants pick the mesh that they think had higher quality; by the end of
the experiment we compile a preference matrix. The matrix evidences the
correlation between real quality and assessed quality. Regarding the shading
mode, we find an interaction with quality and shading when the model has high
definition. Furthermore, we assess the subjective realism of the most/least
preferred scans using an Immersive Augmented Reality (IAR) video-see-through
setup. Results show higher levels of realism were perceived through the HMD
than when using a monitor, although the quality was similarly perceived in both
systems.

15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
37
The categories of this paper are: supr-con