D. Power Consumption
The power consumption of Wireless Image Sensor plays a very important role in one time installation setup, low the stand-by power greater the battery life. Microcontroller consumes less power as compared to FPGA's. In recent advancement of FPGA such as Igloo from Actel has a power consumption of just 0.012mW with a block Random Access Memory (RAM) of just 18KB. This shows FPGA can also be used for power efficient visual sensor networks. Table. 1 & 2 shows the power consumption details of micro-controller as well as microprocessor respectively.