Video surveillance technology plays an important role in the security field, with its intuitive, convenient and abundant information and is widely used in city traffic, civil security and other various fields especially in the important safety departments or major events.…

In the last decade, the number of mobile phone users has increased dramatically. Nowadays, mobile phone has become part of people’s life. Today’s mobile phones provide not just voice call and messaging services, but plethora of other services. This research…

Smartphones are becoming more and more universal. An increasing number of services
on these smartphones allow people to access the internet, through wireless networks and
cellular data connections such as 3G. The explosion of 3G usage is causing a lot…