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General requirements for collected data:

• when When collecting video recordings and images, specific requirements for object images, scene, angle, illumination and video stream are met for those detection tools that you plan to use (see Configuring detection tools);

• if If it is required to train the neural network in different conditions of time of day, lighting, angle, object types or weather, then the video material should be collected in equal shares for each condition, that is, it should be balanced.

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  title Note
  Example. It is necessary to detect a person in the surveillance area at night and during the day. Data collected correctly: 4 video recordings of the surveillance area, each 5 minutes long; the object of interest appears in the frame in each video fragment; 2 fragments were recorded in night conditions, 2—in daytime conditions. Data collected incorrectly: 3 video recordings of the surveillance area, each 5 minutes long; the object of interest appears in the frame in each video fragment; 2 fragments were recorded in night conditions, 1—in daytime conditions.

  
  

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