ABSTRACT

Multiscale descriptions of signals have been the subject of extensive research. A possible formalism for this topic comes from the idea of multiscale filtering that was introduced by Witkin [27], and developed in a variety of frameworks over the past decade [2, 16, 28]. The basic idea of scale-space representations is to filter the signal $o (^) : lRn —* with a kernel K,(X,t) : lRn —*■ H m, where t £ ]R+ represents the scale.