Kai Qian, Prabir Bhattacharya. Determining holes and connectivity in binary images. Computers & Graphics, 16(3):283-288, 1992. [doi]
@article{QianB92,
title = {Determining holes and connectivity in binary images},
author = {Kai Qian and Prabir Bhattacharya},
year = {1992},
doi = {10.1016/0097-8493(92)90005-G},
url = {http://dx.doi.org/10.1016/0097-8493(92)90005-G},
researchr = {https://researchr.org/publication/QianB92},
cites = {0},
citedby = {0},
journal = {Computers & Graphics},
volume = {16},
number = {3},
pages = {283-288},
}