@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^{T}wheredis a real number but the vectorsxandyhave 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.}
}