Measuring elements for the output of measured quantities in respect of the flow, namely the flow quantity and direction, the water pressure and the flow noise are integrated in a measurement probe for water supply networks, whereby all these measuring elements are connected or can be connected to a data collector by means of transmission by radio, modem or cable connection. By adding the autocorrelation andor cross-correlation functions of frame words, double maximum values equal in magnitude and opposite polarity at zero and middle shifts are obtained. Those identified pixels that are determined to be part of an eye are the detected red-eye regions. The surface area ratio of the glass base material to the polarizing film is set to 178%. Another embodiment of the invention includes a method of repositioning and deploying a stent having a ratchet mechanism within a blood vessel. The resilient member includes a first end, a second end, and an intermediate portion between the first and second ends.