@book{31177,
	author = {Tan, Honghua, ed.},
	title = {PIAGENG 2009: Image Processing and Photonics for Agricultural Engineering},
	publisher = {SPIE},
	year = {2009},
	series = {Proceedings of SPIE; V. 7489},
	address = {Washington, USA},
	url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/7489}
}