Canny Algorithm: A New Estimator for Primordial Non-Gaussianities
  We utilize the Canny edge detection algorithm as an estimator for primordial
non-Gaussianities. In preliminary tests on simulated sky patches with a window
size of 57 degrees and multipole moments $l$ up to 1024, we find a $3\sigma$
distinction between maps with local non-Gaussianity $f_{NL}=350$ (or
$f_{NL}=-700$) and Gaussian maps. We present evidence that high resolution CMB
studies will strongly enhance the sensitivity of the Canny algorithm to
non-Gaussianity, making it a promising technique to estimate primordial
non-Gaussianity.
