Abstract:
Compacted Dither Pattern Code (CDPC) is a
recently found feature which is successful in irregular shapes
based visual depiction. Locally salient dither pattern feature is
an attempt to expand the capability of CDPC for both regular
and irregular shape based visual depiction. This paper presents
an analysis of rotational and scale invariance property of locally
salient dither pattern feature with a two dimensional spatialchromatic
histogram, which expands the applicability of the
visual feature. Experiments were conducted to exhibit rotational
and scale invariance of the feature. These experiments were
conducted by combining linear Support Vector Machine (SVM)
classifier to the new feature. The experimental results revealed
that the locally salient dither pattern feature with the spatialchromatic
histogram is rotationally and scale invariant.
