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Axis Communications – External Mounting height recommendations for Q6000-E
Distance to object (m)
5 5 10
10
30
Resolution (px)
1280
960
1280
960
1280
Angle of view (horizontal) / 2
76
56
76
56
76
Calculations (px/m)
31,9
64,8
16,0
32,4
5,3
INFORMATION
AXIS Q6000-E: Mounting height
recommendations
The general recommendation for the optimal mounting of AXIS Q6000-E is five (5)
meters (16 feet) off the ground. This provide adequate vertical coverage, reasonable
level of image detail (pixel density) and optimal zoom angle (Q60-E) for facial
identification.
At a mounting height of five meters, it is estimated that AXIS Q6000-E can provide a
360° field of view that covers more than 20,000 m² (215,000 sq ft) - more than the size
of four football fields.
There are three key considerations to take into account when installing an
AXIS Q6000-E:
area of coverage
image detail (pixel density)
zoom angle
Area of coverage
In situational awareness mode (Quad View in Q6000-E), it is interesting to note that the
four cameras provide the same horizontal area of coverage regardless of mounting
height. The vertical area of coverage increases with the mounting height.
Image detail (pixel density)
However, the higher up the camera is mounted, the smaller the pixel density becomes
for an object (i.e. objects will have fewer pixels and thereby less details—which is
readily visible in Quad View.
Example of calculation pixel/m
Rev: 3.0, Last updated: 30/03/2015 1
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Axis Communications – External Mounting height recommendations for Q6000-E
𝑅𝑒𝑠𝑜𝑙𝑢𝑡𝑖𝑜𝑛
(
Distance to object ∗ 2)∗ tan
𝐴𝑛𝑔𝑙𝑒 𝑜𝑓 𝑣𝑖𝑒𝑤
2
Zoom angle
In addition, when using the zoom lens of the Q60-E, the view angle will be steeper,
which makes it more difficult for facial identification if a person is standing close to the
camera.
Blind spot
Another aspect is the blind spot underneath the camera that will be affected by the
mounting height. Regardless of the resolution format (4:3 or 16:9), the vertical FoV
remains 85° meaning there is practically no blind spot except under the camera.
With the Q60-E initial position, meaning the camera facing down, the PTZ FoV covers
pretty much the remaining blind spot under the Q6000-E. The blind spot can be covered
by the Q60-E, and should therefore not be of any problem for the installation.
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Axis Communications – External Mounting height recommendations for Q6000-E
0,0
0,4
0,8
1,2
1,6
2,0
0 1 2 3 4 5 6 7 8 9 10
Blind spot, diameter (m)
Mounting height (m)
Q6000-E: Mounting height vs Blind spot
Furthermore, an object will not be able to leave the blind spot without being captured by
the Q6000-E as long as the cameras are covering 360º. Illustration of mounting height
vs blind spot will demonstrate that aspect.
Conclusion
Our recommendations is intended to give assistance for making decision for an optimal
installation as possible.
Best regards,
AXIS PTZ team
Rev: 3.0, Last updated: 30/03/2015 3
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