We obtain a resolution of the identity operator, for functions on a la
ttice epsilonZ(d), which is derived from the block renormalization gro
up. we use eigenfunctions of the terms of the decomposition to form a
basis for l2(epsilonZ(d)) and show how the basis is generated from lat
tice wavelets. The lattice spacing epsilon is taken to zero and contin
uum wavelets are obtained.