TY - JOUR
T1 - Digital Image Compression by Outer Product Expansion
JF - Communications, IEEE Transactions on
Y1 - 1983
A1 - O'Leary, Dianne P.
A1 - Peleg,S.
KW - approximation;
KW - coding;
KW - image
KW - Least-squares
KW - Transform
AB - 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.
VL - 31
SN - 0090-6778
CP - 3
M3 - 10.1109/TCOM.1983.1095823
ER -