@article {15742,
	title = {Digital Image Compression by Outer Product Expansion},
	journal = {Communications, IEEE Transactions on},
	volume = {31},
	year = {1983},
	month = {1983/03//},
	pages = {441 - 444},
	abstract = {We approximate a digital image as a sum of outer products dxy<sup>T</sup>where<tex>d</tex>is a real number but the vectors<tex>x</tex>and<tex>y</tex>have elements +1, -1, or 0 only. The expansion gives a least squares approximation. Work is proportional to the number of pixels; reconstruction involves only additions.},
	keywords = {approximation;, coding;, image, Least-squares, Transform},
	isbn = {0090-6778},
	doi = {10.1109/TCOM.1983.1095823},
	author = {O{\textquoteright}Leary, Dianne P. and Peleg,S.}
}
