Bernal S D_2010.pdf - University of Plymouth

5.2. FEEDBACK-MEDIATED ILLUSORY CONTOUR COMPLETION
Realsquiirc
band
V/nvardi lipdilt (loopy)
Rul fquiK
Ibind
Complete updalc (loopy)
KIMIQI tqusrc
All btndi
No tudback
KaniiM iqvirc
AU tmndi
Vptfurit upditt (knpy)
Kanina iqnare
I hand
VpKard\ updalt (lonpv)
KaniitB si]uarc
Iband
. ^ ^
>10 >10 >I0
Bal(S3) Bel(S3) Bel(53)
Figure 5.32: Ranking position of the square prototype over the S3 layer belief distribution
for differeiU inpui images and model parameiers. Kesulis are shown for ihe four
different S2 RF sizes, as well as for the mean response. The input image is either a
real square or a Kanizsa square. Each of them are compared for four coiidilions:
1) all bands and no feedback, 2) all hands and die iipwimls updaie melhod, 3)
only the lower hand and Ihe upwards update melhixl 4) only the lower hand and
the tomptete upduie meihiwi are used. The S.'l belief distribution is .shown for
three of the resulis. Nule, in Ihe aliernalive Yamane 3-level archileclure there
are four prototypes or siales per objeei, and all of iliese are considered a correct
maich when calculating ihe rank order, ImporianUy, the rank order is obtained by
considering the stales of each S,l node separately (there are 2 by 2 S3 nodes, one
for each coded location), such that states from different S3 nodes compete with
each other
230
/"