Harrar, KhaledHamami, LatifaLespessailles, EricJennane, Rachid2015-06-032015-06-03201317468094https://dspace.univ-boumerdes.dz123456789/1374enFractional Brownian motionWhittle estimatorBone X-rayOsteoporosisPiecewise whittle estimator for trabecular bone radiograph characterizationArticle