In a distributed programming environment with location transparency, fast access to remote resources is absolutely critical for eÆcient program execution but it is not suÆcient. Locality optimization will try to group objects according to their communication patterns and replace remote access by local access whenever possible. Locality optimization is based on the assumption that local access a...

For more than a century, rigid-body displacements have been viewed as affine transformations described as homogeneous transformation matrices wherein the linear part is a rotation matrix. In group-theoretic terms, this classical description makes rigid-body motions a semi-direct product. The distinction between a rigid-body displacement of Euclidean space and a change in pose from one reference...

2 User reference: the sift function 1 2.1 Scale space parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.2 Detector parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.3 Descriptor parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.4 Direct access to SIFT components . . . . . . . ....