@article{Kim:2004:CSW,
optpostscript = {},
www = {http://www-users.cs.umn.edu/~interran/papers/tvcg04.pdf},
number = {4},
month = jul,
optnote = {},
author = {Sunghee Kim and Haleh Hagh-Shenas and Victoria Interrante},
optkey = {},
optannote = {},
url = {http://ieeexplore.ieee.org/xpl/abs_free.jsp?arNumber=1298804},
localfile = {papers/Interrante.2004.CSW.pdf},
doi = {http://dx.doi.org/10.1109/TVCG.2004.5},
optciteseer = {},
journal = j-IEEE-VCG,
volume = {10},
title = {{C}onveying {S}hape with {T}exture: {E}xperimental {I}nvestigation of
{T}exture's {E}ffects on {S}hape {C}ategorization {J}udgments},
abstract = {In this paper, we describe the results of two comprehensive
controlled observer experiments intended to yield insight into the
following question: If we could design the ideal texture pattern
to apply to an arbitrary smoothly curving surface in order to
enable its 3D shape to be most accurately and effectively
perceived, what would the characteristics of that texture pattern
be? We begin by reviewing the results of our initial study in this
series, which were presented at the 2003 IEEE Symposium on
Information Visualization, and offer an expanded analysis of those
findings. We continue by presenting the results of a follow-on
study in which we sought to more specifically investigate the
separate and combined influences on shape perception of particular
texture components, with the goal of obtaining a clearer view of
their potential information carrying capacities. In each study, we
investigated the observers' ability to identify the intrinsic
shape category of a surface patch (elliptical, hyperbolic,
cylindrical, or flat) and its extrinsic surface orientation
(convex, concave, both, or neither). In our first study, we
compared performance under eight different texture type
conditions, plus two projection conditions (perspective or
orthographic) and two viewing conditions (head-on or oblique). In
this study, we found that: 1) Shape perception was better
facilitated, in general, by the bidirectional "principal direction
grid” pattern than by any of the seven other patterns tested; 2)
shape type classification accuracy remained high under the
orthographic projection condition for some texture types when the
viewpoint was oblique; 3) perspective projection was required for
accurate surface orientation classification; and 4) shape
classification accuracy was higher when the surface patches were
oriented at a (generic) oblique angle to the line of sight than
when they were oriented (in a nongeneric pose) to face the
viewpoint straight on. In our second study, we compared
performance under eight new texture type conditions, redesigned to
facilitate gathering insight into the cumulative effects of
specific individual directional components in a wider variety of
multidirectional texture patterns. In this - follow-on study, we
found that shape classification accuracy was equivalently good
under a variety of test patterns that included components
following either the first or first and second principal
directions, in addition to other directions, suggesting that a
principal direction grid texture is not the only possible "best
option” for enhancing shape representation.},
pages = {471--483},
year = {2004},
}
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