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Related Pages
Related Symbols
ImageContainsQ
HighlightImage
ImageBoundingBoxes
ImagePosition
VideoMapTimeSeries
VideoFrameList
VideoFrameMap
ImageAssemble
ImageAdd
TimeSeriesMap
Related Categories
Image Processing
Computer Vision
Video Processing
Object Recognition & Tracking in Videos
Example Notebook
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Detect and track an object in a video
Download the source
video
:
I
n
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1
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O
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[
1
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=
Use
I
m
a
g
e
C
o
n
t
a
i
n
s
Q
to find whether a dog is detected in each frame:
I
n
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2
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:
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c
h
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c
k
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V
i
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M
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Q
#
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c
d
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C
O
N
C
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P
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&
,
v
;
Create a plot showing in which frames of the video a dog is detected:
I
n
[
3
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:
=
L
i
s
t
P
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T
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S
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M
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,
c
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e
c
k
]
,
o
p
t
i
o
n
s
O
u
t
[
3
]
=
Alternatively, extract the video frames and assemble a visual representation of the marked frames:
I
n
[
4
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:
=
i
m
a
g
e
s
=
V
i
d
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F
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[
v
,
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S
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0
0
]
,
A
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]
;
I
n
[
5
]
:
=
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m
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A
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#
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5
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,
#
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0
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}
]
&
,
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B
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[
V
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c
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c
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]
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,
1
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O
u
t
[
5
]
=
Using
I
m
a
g
e
P
o
s
i
t
i
o
n
, you can track the movement of the dog:
I
n
[
6
]
:
=
p
o
s
=
I
m
a
g
e
P
o
s
i
t
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o
n
#
,
d
o
m
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s
t
i
c
d
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g
C
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C
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P
T
&
/
@
i
m
a
g
e
s
;
This is the trajectory detected in the video, over time:
I
n
[
7
]
:
=
H
i
g
h
l
i
g
h
t
I
m
a
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,
.
.
.
,
,
L
i
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e
[
F
l
a
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t
e
n
[
p
o
s
,
1
]
]
O
u
t
[
7
]
=
Overlay the detected bounding box on the original video frame:
I
n
[
8
]
:
=
V
i
d
e
o
F
r
a
m
e
M
a
p
H
i
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#
,
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B
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B
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s
#
,
d
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d
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C
O
N
C
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P
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&
&
,
v
O
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t
[
8
]
=
See Also
YOLO V3 Trained on Open Images Data
Scaled-YOLO V4 Trained on MS-COCO Data
Related Symbols
ImageContainsQ
HighlightImage
ImageBoundingBoxes
ImagePosition
VideoMapTimeSeries
VideoFrameList
VideoFrameMap
ImageAssemble
ImageAdd
TimeSeriesMap
Publisher Information
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