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Image requirements for the Motion detector and its sub-detectors

Requirements for the operation of the Motion detection and detector and its sub-tools detectors are given in the table:

Camera	Camera shake must not result in image offsets greater than 1% of the frame size
Lighting	Moderate lighting. In conditions of insufficient (night) or excessive lighting (light-striking), the quality of analytics performance can decrease No abrupt changes in lighting
Scene and camera angle	Moving objects are visually separable from each other The background is mostly static and doesn't change abruptly Moving objects are minimally obscured by static objects in the scene (columns, trees, and so on) Analytics

may not

can work

correctly

incorrectly if:
- the analyzed scene have reflective surfaces and sharp shadows from moving objects
- there are extended monochromatic objects in the frame

Some requirements depend on whether you use the Motion detection detector only or its sub-tools detectors (see Standard detection sub-toolsdetectors). The difference in requirements is shown in the table:

Requirements	Motion detectiondetector	Motion detection detector sub-toolsdetectors
Resolution in pixels	At least 320х240	At least 640х360
FPS	At least 1	At least 6
Work with image	Analytics only works with color images	Analytics works with both gray and color images

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