In this paper, we propose four techniques for extraction of facial features namely 2DPCA, LDA, KPCA and KFA. The purpose of face feature extraction is to capture certain discriminative features that are unique for a person. In the previous works that uses PCA for face feature extraction involves merging the features and reducing the dimensions that results in some information loss. To overcome ...

One of the most critical decision points in the design of a face recognition system is the choice of an appropriate face representation. Effective feature descriptors are expected to convey sufficient, invariant and non-redundant facial information. In this work we propose a set of Hahn moments as a new approach for feature description. Hahn moments have been widely used in image analysis due t...

Face Recognition has been identified as one of the attracting research areas and it has drawn the attention of many researchers due to its varying applications such as identity authentication, security access control human computer interaction and surveillance. In this paper, we compare different features extraction algorithms like Principal Component Analysis (PCA), Discrete Cosine Transform (...

We assessed current policies and perceptions of enteral tube feeding in head neck cancer (HNC) patients undergoing chemoradiotherapy (CRT). A web-based survey was used to compare the timing method within between five Nordic countries, covering a population 27 million. From each 21 university hospitals, one oncologist otorhinolaryngology—head (ORL-HN) surgeon responded survey. The respondents we...

Male Wistar rats were trained to discriminate either the opioid receptor like (ORL)-1 receptor agonist Ro 64-6198 (1S,3aS-8– 2,3,3a,4,5,6-hexahydro-1H-phenalen-1-yl-1-phenyl-1,3,8-triazaspiro[4.5]decan-4-one) or morphine from saline using a twochoice, food reinforced, operant procedure. Acquisition of Ro 64-6198 discrimination was relatively slow (mean trials to criterion 113 6), and a final 4 ...

Purpose Assessment and a direct comparison of retinal vessel density with the thickness inner layer (IRL) outer (ORL) in same regions macula subjects Alzheimer’s disease (AD) primary open-angle glaucoma (POAG). Methods We analyzed data from 48 eyes healthy control (HC) participants, 71 POAG, 49 AD patients. Ophthalmic examination included optical coherence tomography (OCT) imaging to measure IR...