Conjecture on the Visual Estimation of Relative Radial Motion

  title={Conjecture on the Visual Estimation of Relative Radial Motion},
  author={H. Weinberger},
  • H. Weinberger
  • Published 19 February 1971
  • Computer Science, Medicine
  • Nature
THE ability to estimate accurately the time interval until the juncture of an observer with an object moving with relative radial velocity towards the observer seems to be highly developed in humans and many animals. In many practical situations, of probable importance for survival, it is not the distance of the object from the observer which is of interest, nor is it the velocity of the object, but rather the ratio of the two, which gives the time taken by the object to reach the observer. The… Expand
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