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The requirements for the cameras that will work video stream and the scene when working with the Neurotracker module are listed given in the following table.

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Camera

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  • Resolution: 640х480 pixels.
  • Correct operation is not guaranteed with fish-eye lenses
  • Fps: not less than 2 (recommended: 4 or more)

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Lighting

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  • The objects must be visually separated from the background and from each other

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Scene and camera angle

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  • The camera shall be installed at an angle at a height of at least 3 meters, or on the ceiling, or facing strictly down (for counting visitors)

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Objects image

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  • Minimal object size: at least 10% of the frame area.

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Video stream from camera

  • The resolution is at least 640x360 pixels. It is also not recommended to use a resolution higher than 1920×1080, since higher resolution does not increase the detection quality, but significantly increases the consumption of resources. The optimal resolution for solving typical tasks is 1280x720 (see Examples of configuring neural tracker for solving typical tasks).
  • The frame rate per second in the video stream from the camera is at least 8 for solving typical tasks.
  • Both colorless (gray) and color images.

Lighting

  • Lighting in the scene is at least 50 lux per square meter. In conditions of insufficient or excessive lighting (night or light-striking), stable operation of the video analytics is not guaranteed.
  • There are no abrupt changes in lighting.

Scene and camera angle

  • Moving objects are visually separable from each other.
  • The background is mostly static and does not change abruptly.
  • Moving objects are minimally obscured by static objects in the scene (columns, trees, etc.).
  • The analyzed scene does not have reflective surfaces and sharp shadows from moving objects. If present, they should be masked.
  • Camera shake does not result in image offsets greater than 1% of the frame size.

Objects image

Objects image requirements for neural tracker


Note
titleAttention!

Correct operation of the neural tracker is not guaranteed when using a fish-eye lens.


Tip

Software and hardware requirements

Hardware platform requirements:

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Compute Capability 3.0 or higher.

Info
titleNote.

Check the Compute Capability version for the video card on the manufacturer's web site.

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