Random Cross Ratios

  title={Random Cross Ratios},
  author={Kalle {\AA}str{\"o}m},
The main result of this paper is the derivation of the probability density function of the cross ratio k a b c d c a d b d a c b when the numbers a, b, c and d are independent stochastic variables with identical rectangular distribution. The probability density function of the cross ratio is needed to study the effectiveness of invariant based recognition systems. A short background into invariant based recognition is given. The use of the result is illustrated by examples and a short comment… CONTINUE READING
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