TY - JOUR
T1 - When are viewpoint costs greater for silhouettes than for shaded images?
AU - HAYWARD, William G.
AU - WONG, Alan C.-N.
AU - SPEHAR, Branka
N1 - This research was supported by a grant from the Australian Research Council to W.G.H. and B.S. and by Grant CUHK 4332/00H to W.G.H. from the Research Grants Council of Hong Kong SAR, China.
PY - 2005/4
Y1 - 2005/4
N2 - Previous studies of object recognition have shown efficient recognition of silhouettes, suggesting that much of the information used to recognize objects resides in the outline. These studies, however, have used objects that contain many components, which provide redundant information. In this study, we examined recognition of silhouettes of less-complex objects, so that redundant information was reduced. We found that viewpoint generalization costs (the decrement of performance when recognizing nonstudied views) were greater for silhouettes than for shaded images, even when the same qualitative components were visible in the outline of both studied and nonstudied views. Thus, silhouettes do not always allow for view generalization as efficiently as do shaded images.
AB - Previous studies of object recognition have shown efficient recognition of silhouettes, suggesting that much of the information used to recognize objects resides in the outline. These studies, however, have used objects that contain many components, which provide redundant information. In this study, we examined recognition of silhouettes of less-complex objects, so that redundant information was reduced. We found that viewpoint generalization costs (the decrement of performance when recognizing nonstudied views) were greater for silhouettes than for shaded images, even when the same qualitative components were visible in the outline of both studied and nonstudied views. Thus, silhouettes do not always allow for view generalization as efficiently as do shaded images.
UR - http://www.scopus.com/inward/record.url?scp=23744486852&partnerID=8YFLogxK
U2 - 10.3758/BF03196379
DO - 10.3758/BF03196379
M3 - Journal Article (refereed)
AN - SCOPUS:23744486852
SN - 1069-9384
VL - 12
SP - 321
EP - 327
JO - Psychonomic Bulletin and Review
JF - Psychonomic Bulletin and Review
IS - 2
ER -