@book{33655,
	author = {Tzou, Kou-Hu, ed.},
	title = {Visual Communications and Image Processing '91: Image Processing},
	publisher = {SPIE},
	year = {1991},
	series = {Proceedings of SPIE; V. 1606},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/1606}
}