@conference {jaehne1994c,
	title = {Depth from focus with one image},
	booktitle = {Proc. Conference on Computer Vision and Pattern Recognition (CVPR {\textquoteright}94), Seattle, 20.-23. June 1994},
	year = {1994},
	pages = {713--717},
	doi = {10.1109/CVPR.1994.323885},
	author = {Bernd J{\"a}hne and Peter Gei{\ss}ler}
}
