@article{DBLP:journals/prl/ParuiSC93,
author = {Swapan K. Parui and
S. Sarkar and
B. B. Chaudhuri},
title = {Computing the shape of a point set in digital images},
journal = {Pattern Recognition Letters},
volume = {14},
number = {2},
year = {1993},
pages = {89-94},
ee = {http://dx.doi.org/10.1016/0167-8655(93)90081-N},
bibsource = {DBLP, http://dblp.uni-trier.de}
}