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Environment conditions
AI-HEAT is a video analytic plugin able to compute the heat map in indoor and outdoor environments.
Performance is best under the following conditions:
n The image must not present flickering, severe noise or artifacts.
n Image must have a resolution of 640x360, 640x480, 320x240, 320x180.
n Rotating (PTZ) security cameras are supported only if they are not moved when the application is
enabled. If the camera is moved, the application must be reconfigured.
n Absence of occlusions (E. g. Trees, pillars, buildings, furniture elements etc.) that do not allow to see
the people.
n There must be no fog, clouds or other moving objects whose appearance is similar to the smoke (e.g.
white powder raised by the wind) in the areas of interest.
n Camera lens must not be dirty, wet or covered in rain or water drops. Camera lens must not be
steamy.
n Absence of "waving objects" (e.g. Meadow with tall grass, trees, sliding doors, etc.) or any other type
of disturbance that causes the continuous modification of the images (moving pixels) in the areas of
interest.
n Camera placement must be stable and solid in a way that wind or external disturbances of other types
will cause movement of the camera that appears on the image.
n Absence of strong lights (e. g. vehicle lights) projected in areas of interest.
n Correct exposition of the camera: camera must not be in backlight, the framed area must not have
heterogeneous illumination, i.e. partially indoor or partially outdoor. In general, no areas to be
monitored must be almost white or almost black, i.e. the dynamic range must be sufficient to
correctly show detail of objects in the image. If necessary, the camera must be installed with external
illuminators that make it possible to distinguish the people in all natural or artificial lighting
conditions.
n The target must have a sufficient dissimilarity from the background, i.e. there is no explicit
camouflage, where the target is similar to the background in color and texture. Sufficient dissimilarity
means at least a color difference of at least 5% or a brightness difference of at least 10%.
n The scene must be predominantly non-reflective.
n No hard lights must be present that cast shadows in a way that the background brightness is reduced
to less than 50% of the original value in the image.
n In case of thermal cameras, the image must be not coloured but in grayscale (white for “hot” pixels,
black for “cold” pixels). The camera, thermal or monocular, must be always configured in order to
avoid continuous changes of brightness.
If necessary, the camera must be installed with external illuminators that make it possible to
distinguish the targets in all natural or artificial lighting conditions.
AI-HEAT
AI-HEAT
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