. 5. Question (a) There is currently much interest in employing vision systems in Unmanned Aerial Vehides (UAVS), in atdes. to undertake difficult tasks for a number of applications. Three such applications are identified below. In each case specify an example of a specific task the vision system needs to achieve and identify a major benefit and challenge associated with the use of machine vision for the task: Airport runway inspection and dearance following a storm [3 marks] Unmanned Aerial Delivery [3 marks] UAV reconnaissance in agri-tech [3 marks) . (b) An aircraft turbine manufacturer has a requirement to inspect turbine blades such as the one shown in Figure 25 below. These parts exhibit various features, including punched and embossed codes, welding, and other characteristics that can emerge after extended use, such as creep. They have been using 2D machine vision methods to detect and measure these features/characteristics, but have found this approach limiting. Explain the drawbacks of employing a purely 2D approach for this application. [4 marks] Figure Q5 Aircraft turbine blade () The manufacturer studying this problem has identified binocular stereo and laser triangulation as techniques that could provide additional useful benefits. For each technique, identify such a benefit and explain exactly how the technique can be used to provide the benefit when analysing the blade; using diagrams to help with your explanations. Identify any problems that you might expect to encounter when using each technique and suggest possible solutions. It is very important to ensure that your discussion relates to the blade application, rather than just being a general discussion. Say which of the two techniques you would recommend for this application and give a reason. [12 marks] Total (25 marks)