Abstract Human action classification is a dynamic research topic in computer vision and has applications video surveillance, human–computer interaction, sign-language recognition. This paper aims to present an approach for the categorization of depth oriented human action. In approach, enhanced motion static history images are computed set 2D auto-correlation gradient feature vectors obtained f...

Irregular terrains covered with forest vegetation represent a challenging scenario for radio planning. A case of particular interest is the one where forest-covered high hill or mountain interposed to link, which typical diffraction loss models usually apply as good approximations, even disregarding influence. Pragmatic approaches incorporate contribution, such adding clutter height, improve ac...

Soft markers are sonographic structural, nonspecific signs with little pathological significance, often transient, usually considered as normal variants. However, they may also be associated chromosomal abnormalities. The most widely examined soft include absent or hypoplastic nasal bone (NB), intracardiac echogenic focus (IEF), ventriculomegaly (VM), thickened nuchal fold (NF), choroid plexus ...