@article{CMBRS:07, author={C-Y.~Chang and A.~A.~Maciejewski and V.~Balakrishnan and R.~G.~Roberts and K.~Saitwal}, title={Quadtree-based eigendecomposition for pose detection in the presence of occlusion and background clutter}, journal={Pattern Analysis and Applications}, year={2007}, note={}, volume={10}, number={1}, pages={15-31}, month=February, }