AI Memos (1959 - 2004): Recent submissions

Now showing items 439-441 of 1217

    • A Theoretical Analysis of Electrical Properties of Spines 

      Koch, C.; Poggio, Tomaso A (1983-04-01)
      The electrical properties of a cortical (spiny) pyramidal cell were analyzed on the basis of passive cable theory from measurements made on histological material (Koch, Poggio & Torre 1982). The basis of this analysis ...

    • Information Processing in Dendritic Spines 

      Koch, C.; Poggio, Tomaso A (1983-03-01)
      Dendritic spines are small twigs on the dendrites of a very large class of neurons in the central nervous system. There are between 10 (3) and 10 (5) spines per neuron, each one including at least one synapse, i.e. a ...

    • An Extremum Principle for Shape from Contour 

      Brady, Michael; Yuille, Alan (1983-06-01)
      An extremum principle is developed that determines three-dimensional surface orientation from a two-dimensional contour. The principle maximizes the ratio of the area to the square of the perimeter, a measure of the ...