... Processing
Volume 2008, Article ID 691924, 15 pages
doi:10.1155/2008/691924
Research Article
Learning How to Extract Rotation-Invariant and
Scale-Invariant Features from Texture Images
Javier A. Montoya-Zegarra,
1, ... addressed to Javier A. Montoya-Zegarra, jmontoyaz@gmail.com
Received 2 October 2007; Revised 1 January 2008; Accepted 7 March 2008
Recommended by C....
... Tz.
On the other hand, Bianchini and Grandolfi proved in 29 the following fixed point
theorem.
Theorem 3.2 Bianchini and Grandolfi 29. Let X, d be a complete metric space and let T :
X → X ... the last years several authors used the term “quasimetric” to refer to
a T
0
quasipseudometric and the term “T
1
quasimetric” to refer to a quasimetric in the above
sense.
In the...
... as computed from the middle pixel photo cur-
rent, the output of the resistive network of 11.6pA, and a
scaling C equal to 1. The stimuli change from uniform 0 pA
to (from top to bottom) 50, 10, ... the first stage is to extract relevant features from an
image such as textures, lines, and their angles, edges, cor-
ners, intersections, and so forth. These features hav...
... full rank
under assumptions A1 to A4 in [2]. In the same issue, it is
also shown that matrices C
1
and C
2
of (4)evaluateto
C
1
= BΛB
†
, C
2
= BDΛB
†
,(8)
where Λ and D are both full-rank diagonal ... for
M
∈{2, 3, ,20} and M ≥ G ∈{2,4, 8,12},where
each point was obtained from 20000 trials and randomly
generated matrices C
1
, C
2
,andR
xx
. Note that even though
the original EVE...
... presented to
encode the crack subsections and extract the direction features, and a Delaunay Triangulation technique is employed to analyze
the crack region structure and extract the density features. ... vector. Meanwhile, we can see that, the features p
0
,
p
1
,andp
2
have high impact on results of the block and
alligator cracks, which denote their density characteristi...
... CBR is varied from 0.06 to
0.14 (flows/sec), and the others are fixed and set to be
0.065 (flows/sec). Figures 6(a), 6(b) ,and6 (c) show the
average packet dropping rate, delay time, and connection
throughput, ... (PSNR). To e s t i m a t e v id e o
quality, the arrival rate of MVBR is varied from 0.06 to
0.14 (flows/sec), and the others are fixed and set to be 0.065
(flows/...
... applications in kinematics control,
support vector machine learning, and related branches of engineering. Using the technique
and ideas of Liu and Cao 5 and Liu and Yang 6, one can consider the recurrent
neural ... five, four, three, and two operators
and quasi variational inclusions/inequalities as special cases. Using the resolvent operator
Journal of Inequalities and Ap...
... nonempty closed convex
subset of H and A a nonlinear mapping. We use DA and RA to denote the domain and
the range of the mapping A. → and denote strong and weak convergence, respectively.
Recall ... space X into its dual space X
∗
. T is said to be
hemicontinuous if it is continuous from each line segment in X to the weak topology
in X
∗
.
7 The mapping f with the do...
... nonempty
subset of M and P be a retraction from M onto D.ThenP is sunny and nonexpansive if and only if
x − Px,Jz − Px≤0 for all x ∈ M and z ∈ D.
Now, we are ready to prove strong convergence to nearest ... invariant under T, f and g, T, f
and T, g are Banach operator pairs on cent
K
{y
1
,y
2
}, Ff and Fg are q-starshaped with
q ∈ Ff ∩ Fg, f and g are...
... quartiles
Q
3
and Q
1
are considered. Their mean, μ
Q
31
and standard
deviation, σ
Q
31
, are used to estimate T
2
as 2 × (μ
Q
31
+2σ
Q
31
).
ThisensuresthatlowMADvalues(closeorequaltozero)
and high ... method [14], and (d)
proposed method.
Going row by row, the first and second sequences are
from a railway station in Brisbane, the third is fr om the
CANDELA dataset and the las...