You cannot set the permission to read a component attribute on the one hand and the permission to create a current object class on the other hand in the sam fact control entry. The reason for this is that only one scope specifier is allowed per ACE. For such permissions, several Dezhi ACEs are necessary..
The images composing the Gaussian and DoG scale space can then be arranged as in the following figure:. Notice that the scale level index s varies in a slightly redundant set. Once extracted, local extrema are quadratically interpolated this is very important especially at the lower Deshii scales in order to have accurate keypoint localization at the full resolution. Finally, they are filtered to eliminate low-contrast sexx or responses close to edges and the orientation s are assigned, as explained next.