  Advancements in Complementary Metal Oxide Semiconductor (CMOS) technology
have enabled Wireless Sensor Networks (WSN) to gather, process and transport
multimedia (MM) data as well and not just limited to handling ordinary scalar
data anymore. This new generation of WSN type is called Wireless Multimedia
Sensor Networks (WMSNs). Better and yet relatively cheaper sensors that are
able to sense both scalar data and multimedia data with more advanced
functionalities such as being able to handle rather intense computations easily
have sprung up. In this paper, the applications, architectures, challenges and
issues faced in the design of WMSNs are explored. Security and privacy issues,
over all requirements, proposed and implemented solutions so far, some of the
successful achievements and other related works in the field are also
highlighted. Open research areas are pointed out and a few solution suggestions
to the still persistent problems are made, which, to the best of my knowledge,
so far have not been explored yet.
