DORI coverage
DORI (Detect, Observe, Recognize, Identify) is a
standard system (EN-62676-4) for defining the ability
of a camera to distinguish persons or objects within a
covered area. The maximum distance at which a
camera/lens combination can meet these criteria is
shown below:
For high mounting applications, the center image DORI
values are:
DORI
Object distance – 180°
Object distance - 360°
Detect
55 m (181 ft)
42 m (138 ft)
Observe
22 m (72 ft)
16.5 m (54 ft)
Recognize
10.5 m (35 ft)
8.5 m (28 ft)
Identify
5.5 m (18 ft)
4 m (13 ft)
When mounted at a height of 3 m (10 ft) the 360°
version of the camera has the following coverage
radius for the four levels:
DORI
DORI definition
Coverage radius
Detect
25 px/m (8 px/ft)
19 m (62 ft)
Observe
63 px/m (19 px/ft)
8.5 m (28 ft)
Recognize
125 px/m (38 px/ft)
4.5 m (15 ft)
Identify
250 px/m (76 px/ft)
2 m (7 ft)
2 m / 7 ft
4.5 m / 15 ft
8.5 m / 28 ft
19 m / 62 ft
When mounted at a height of 3 m (10 ft) the 180°
version of the camera has the following coverage
radius for the four levels:
DORI
DORI definition
Coverage radius
Detect
25 px/m (8 px/ft)
28 m (92 ft)
Observe
63 px/m (19 px/ft)
12 m (40 ft)
Recognize
125 px/m (38 px/ft)
6.5 m (22 ft)
Identify
250 px/m (76 px/ft)
3.5 m (12 ft)
3.5 m / 12 ft
6.5 m / 22 ft
12 m / 40 ft
28 m / 92 ft
E-PTZ and regions of interest
The remote E-PTZ (Electronic Pan, Tilt and Zoom)
controls allow you to select specific areas of the full
image circle. These Regions of Interest (ROI) can be
easily defined, allowing the most interesting part of a
scene to be monitored separately. The high resolution
ensures that details are not lost even when using the
electronic zoom.
The E-PTZ feature of a panoramic camera has some
advantages over normal PTZ cameras. There is no
camera movement so the camera does not draw
attention to itself or appear intrusive. Situational
awareness is still retained even when zooming in on a
particular object of interest. The smooth E- PTZ
function helps navigation, and presets are available as
they are with regular PTZ cameras.
Record exactly what you want
The camera provides the full resolution circular image
for recording even if you are viewing only a portion of
the scene. This means that you can always perform
retrospective dewarping and analyses on the complete
area covered and then zoom in on the region or object
of interest.
With edge-dewarping you can also choose to only
record the relevant parts of the scene which helps
reduce bitrates significantly.
Intelligent Dynamic Noise Reduction
Quiet scenes with little or no movement require a
lower bitrate. By intelligently distinguishing between
noise and relevant information, Intelligent Dynamic
Noise Reduction reduces bitrate by up to 50%.
Because noise is reduced at the source during image
capture, the lower bitrate does not compromise on
video quality.
Intelligent Dynamic Noise Reduction adjusts spatial
and temporal filtering (3DNR) based on intelligent
analysis of the scene content. Motion compensated
temporal filtering (MCTF) reduces motion blur
normally associated with standard temporal filtering.
This maintains image quality of fast moving objects
while still optimizing bitrate.
3 | FLEXIDOME IP panoramic 7000 MP
