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Camera

• Resolution: 720x576 pixels (CIF4)
, using
• ; the use of 360x288 pixels (CIF1) is acceptable.
Resolution
• If you zoom
-
• in over CIF4
is not
• , it doesn't improve the quality of
recognizing procedure
• algorithm recognition.
• Fps: at least 25.
• Color: only color
camera can be in use
• cameras.
• Camera
must be rigidly fixed.
• shaking is absent

Lighting

• The best
working of detection is archived
• detector operation is achieved at medium lighting. In conditions of insufficient (night) or excessive (
exposure
• light-striking) lighting, the quality of
analytics can
• algorithm operation can be reduced.
• Sharp lighting changes
of lighting
• can lead to the short-time
invalid
• improper analytics
working.
• operation

Scene and camera angle

• The best
position –
• position—a camera "looks"
to
• at the scene vertically down. The better you perform this requirement, the
carefully
• more accurate the received estimation.
• Sizes of camera field of view:
2x2m
• 2x2 m is minimal,
4x4m
• 4x4 m is optimal
(8x8 people)
• .
• Background is static and
is not
• isn't changed sharply.
In the recognized
• There are
there
• no moving objects except
of
• people in the recognized area.
• Analytics can work
inappropriately
• improperly on
specular
• reflecting surfaces and in the case of sharp shadows from
moved
• moving objects.
• Analytics can work
inappropriately in case of in the camera field of view
• improperly if there are periodic movements of background objects (trees, working TV,
etc.)
• and so on) in the camera field of view.
• People
occulting
• overlapping by static objects is
to be
• minimal (
by
• columns, trees
etc.).
• , and so on)

Object imagesObjects image

• Image quality: the image
is to
• must be clear, without visible defects from
reducing procedure
• the compression algorithm.
• Permissible person size
of a person
• (the area of a rectangular track around a person) as a percentage of the frame area: from 10% to 60%
.

Other

• People
shouldn't
• must not move by continuous flow,
by
• but groups
by
• of several people are counted properly
.