Biomedical Engineering Reference
In-Depth Information
a
b
300
20
200
60°
60°
10
100
0
0
0
120
240
360
0
120
240
360
Angle,
θ
(
°
)
Angle,
θ
(
°
)
0
50
100
0
50
100
Arc length,
s
(
µ
m)
Arc length,
s
(
µ
m)
-1
0
1
-1
0
1
Normalized curvature
Normalized curvature
c
D
s
= 125 pixels
d
D
s
= 12.5 pixels
40
200
f
30
150
20
100
e
10
10
0
0
0
120
240
360
0
120
240
360
Angle,
θ
(
°
)
Angle,
θ
(
°
)
0
50
Arc length,
s
(
µ
m)
100
0
50
100
Arc length,
s
(
µ
m)
-0.25
Curvature,
κ
D
s
(
µ
m
-1
)
0
0.25
-1.5
0
1.5
Curvature,
κ
D
s
(
µ
m
-1
)
e
f
20
40
10
30
60
120
290
350
Angle,
θ
(
°
)
Angle,
θ
(
°
)
Fig. 7.2
Spatiotemporal patterns of the cell peripheral curvature in a full-moon-shaped keratocyte
(Miyoshi and Adachi
2012
). The maps are based on the same data as those used for the analysis
presented in Figs.
7.3
and
7.5
, and Figs.
6.2
,
6.3
,
6.4
,
6.5
,
and
6. 6
in Chap.
6
. (
a
) The cell peripheral
curvatures,
ʺ
ʔs
, for a fixed time
t
= 0, are estimated by varying spatial interval,
ʔs
, in the discrete
