66
67
Appendix 3 "Intrusion detection" parameters
The parameters used in the intrusion detection algorithm are shown in the table below.
Variable name
Message
Description
1 intrusion_disable
Intrusion on: 0 off: 1
debug(syslog only): 2
ON/OFF flag of intrusion detection function
0: ON
1: OFF
2 object_disable
Object on: 0 off: 1
debug(syslog only): 2
ON/OFF flag of object abandonment/removal func-
tion
0: ON
1: OFF
3 th_min_size
threshold of minimum size
Allowable range relative to standard size (human size
specified)
th_min_size (%) - th_max_size(%)
A human size is estimated with reference to the foot
position and determined by the area.
4 th_max_size
threshold of maximum size
5 th_intrusion_frame alarm threshold of intrusion
frame
This parameter specifies the number of successive
frames to issue an alarm after detection of a human-
like object.
Setting value: 0 – 50 (frames)
Represented, for 10 fps, 0 - 5 sec.
6 reserved_1
Don't modify
Use the default settings.
7 reserved_2
Don't modify
Use the default settings.
8 reserved_3
Don't modify
Use the default settings.
9 sensitivity
sensitivity level
High:0 – Mid:1 - Low:6
Increase in the sensitivity enhances the detection
capability when human is not detected in the night-
time but is likely to cause excessive detection.
0: more detectable
6: less detectable
10 th_object_frame
alarm threshold of object
frame
Time from object abandonment/removal to alarm
issued is specified.
Setting value: 1 - 600
Setting value x 100 (frames)
Represented, for 10 fps, 10 - 6000 sec.
11 flg_aspect_ratio
verticaly long intruder only(1)
all intruder(0)
Limiting only vertically oriented objects allows a false
alarm to be reduced.
0: detection of vertically and horizontally oriented
objects
1: detection of only vertically oriented objects
12 f_draw_trajectory
draw trajectory ON(1) OFF(0)
To display/hide the moving trajectory of an alarm tar-
get object is selected.
0: hidden
1: displayed
13 f_draw_rect_pre
draw pre-alarm rectangle
ON(1) OFF(0)
To display/hide a detection rectangle before determi-
nation of alarm target is selected.
0: hidden
1: displayed
14 osd_language
osd language Japanese: 0
English: 1
The displayed language of the detection results
0: Japanese
1: English
15 dist_mode
use 3D settings (2) don't use
3D settings (0)
Selection between addition of depth setting (human
size setting) and no addition is performed when
detecting an intruder.
0: no addition
1: addition