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Image requirements for the Motion detection detector and its sub-toolsdetectors

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 sub-detectors). The difference in requirements is shown in the table:

RequirementsMotion detectiondetectorMotion detection detector sub-toolsdetectors

Resolution in pixels

At least 320х240At least 640х360
FPSAt least 1At least 6

Work with image

Analytics only works with color imagesAnalytics works with both gray and color images