US 10,895,799 B2 · Method and device for identifying flashing light source

Abstract

The present disclosure provides a method and device for identifying a flashing light source. The method includes as follows. A processor obtains an image captured via a rolling shutter image sensor, the rolling shutter image sensor capturing an image of an environmental background, wherein the environmental background may include movable flashing light sources. A processor obtains stripe sets in the image, wherein the stripe sets can be obtained by capturing the flashing light sources via the rolling shutter image sensor. A processor takes a center of each stripe set as a reference point, and samples along a first direction to obtain n sampling points. A processor identifies the flashing light source by processing the n sampling points. With this disclosure, the identifying automatically of the flashing light source can be achieved.

Claims20

Dependent claims

A method for identifying a flashing light source, comprising:

obtaining an image via a rolling shutter image sensor configured to capture an image of environmental background, wherein the environmental background includes movable flashing light sources;
obtaining stripe sets in the image, wherein the stripe sets are obtained by capturing the flashing light sources via the rolling shutter image sensor;
sampling along a first direction to obtain n sampling points (d1, d2, . . . , dn), wherein the center of each stripe set is taken as a reference point;
processing the n sampling points to identify the flashing light source, comprising:
extending, the n sampling points periodically in k cycles, to obtain N calculation points
[
(
d
1
,
d
2
,
…
⁢
,
d
n
)
,
(
d
1
,
d
2
,
…
⁢
,
d
n
)
,
…
⁢
⁢
(
d
1
,
d
2
,
…
⁢
,
d
m
)
︸
k
⁢
⁢
cycles
]
,
wherein N is greater than n, N is equal to n multiply (k−1) and plus m, m is less than or equal to n.

55 more elements

An electronic device, comprising:

a rolling shutter image sensor configured to capture an image of environmental background;
one or more processors;
and a memory storing one or more programs configured to be executed by the one or more processors, the one or more programs including instructions for:
obtaining an image via the rolling shutter image sensor, wherein the environmental background includes movable flashing light sources;
obtaining stripe sets in the image, wherein the stripe sets are obtained by capturing the flashing light sources via the rolling shutter image sensor;
sampling along a first direction to obtain n sampling points (d1, d2, . . . , dn), wherein the center of each stripe set is taken as a reference point;
and
processing the n sampling points to identify the flashing light source, comprising:
extending the n sampling points periodically in k cycles, to obtain N calculation points
[
(
d
1
,
d
2
,
…
⁢
,
d
n
)
,
(
d
1
,
d
2
,
…
⁢
,
d
n
)
,
…
⁢
⁢
(
d
1
,
d
2
,
…
⁢
,
d
m
)
]
︸
k
⁢
⁢
cycles
,
wherein N is greater than n, N is equal to n multiply (k−1) and plus m, m is less than or equal to n.

59 more elements

A non-transitory computer readable medium storing on or more programs configured to be executed by one or more processors of an electronic device, the one or more programs comprising instruction for:

obtaining an image via a rolling shutter image sensor configured to capture an image of an environmental background, wherein the environmental background includes movable flashing light sources;
obtaining stripe sets in the image, wherein the stripe sets are obtained by capturing the flashing light sources through the rolling shutter image sensor;
establishing a coordinate system to obtain the center (uo, v0) of each stripe set, wherein the origin of the coordinate system is at the upper left corner of the image, a positive direction of x-axis is the rightward direction of the image, and a positive direction of y-axis is the downward direction of the image;
sampling along a first direction to obtain n sampling points (d1, d2, . . . , dn), wherein the center of each stripe set is taken as a reference point, n sampling points (d1, d2, . . . , dn) are determined by
{
d
1
=
(
u
0
,
v
0
-
n
2
)
,
d
2
=
(
u
0
,
v
0
-
n
-
1
2
)
,
…
⁢
,
d
n
=
(
u
0
,
v
0
+
n
-
1
2
)
}
when the first direction is parallel to the width of the image, and n sampling points (d1, d2, . . . , dn) are determined by
{
d
1
=
(
u
0
-
n
2
,
v
0
)
,
d
2
=
(
u
0
-
n
-
1
2
,
v
0
)
,
…
⁢
,
d
n
=
(
u
0
+
n
-
1
2
,
v
0
)
}
when the first direction is perpendicular to the width of the image;
and
processing the n sampling points to identify the flashing light source.

105 more elements

Dependencies are inferred from the claim text.

Method and device for identifying flashing light source

Life of this patent

Method and device for identifying flashing light source

Life of this patent

Abstract

Claims20