Recognizer Types

Object Class Recognition supports several types of recognizer. All use neural networks but have different characteristics.

OpenText recommends that you train object class recognition on a machine with a supported GPU. You can use a trained recognizer with or without a GPU but OpenText recommends using a GPU for best performance.

  • Generation4 recognizers offer the best accuracy, especially for recognizers that you train yourself. The Generation4 recognizer type was introduced in Media Server 12.9.
  • Generation3 recognizers are the fastest at run-time, but accuracy is slightly lower than a Generation2 or Generation4 recognizer.
  • Generation2 recognizers were introduced in Media Server 12.4 and OpenText now recommends using Generation4 recognizers instead.