In this paper a novel face tracking approach is presented where optical flow information is incorporated into the Viola-Jones face detection algorithm. In the original algorithm from Viola and Jones face detection is static as information from previous frames is not considered. In contrast to the ViolaJones face detector and also to other known dynamic enhancements, the proposed face tracker pr...

The helminths of 4 suni, Neotragus moschatus, from the Tembe National Elephant Park, KwaZulu, Natal, were collected, counted and identified. Cooperia hungi, a race of Cooperia rotundispiculum, Haemonchus vegliai, Setaria cornuta, a Skrjabinema sp., Strongyloides papillosus, Trichostrongylus anomalus and Trichostrongylus deflexus are new parasite records for suni in Africa. Megacooperia woodford...

This study aimed at examining the effect of supercritical carbon dioxide (ScCO2) extraction on subsequent Viola odorata polar bioactive components. The raw material was firs submitted to ScCO2 for lipophilic fraction. Then exhausted subjected ultrasound-assisted (UAE) and microwave-assisted (MAE) in order extract performed under pressure 300 bar a temperature 40 °C 4 hours. In see ScCO2, UAE MA...