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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 procedurealgorithm recognition.
• Fps: at least 25.
• Color: only color camera can be in usecameras.
• 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 (exposurelight-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 procedurethe 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.