How do these techniques really help machine vision systems? It all boils down to simplifying the data that the computer has to deal with. Less data, the more time can be spent extrapolating features.
edge detector in natural or machine vision systems, a neuron or operator that responds to the abrupt change in stimulus across a (locally) straight edge between two regions of approximately uniform intensity or color.
Although crude, these systems could distinguish differences shapes in objects using black and white differences. By 1985 over a hundred companies offered machine vision systems in the US, and sales totaled $80 million.
Speech recognition is commercially available and is widely deployed.
Computer algebra systems, such as Mathematica and Macsyma, are commonplace.
Machine vision systems are used in many industrial applications.
 See also: AI, Neural network, Expert system, Artificial intelligence, Demon
  
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