Question: (C) Motion compensation is an important step in video compression. Assume that 2 x 2 macroblock is used and the target frame and reference frame

(C) Motion compensation is an important step in video compression. Assume that 2 x 2 macroblock is used and the target frame and reference frame is shown in Figure Q3(c)(i) and Q3(c)(ii), respectively. Calculate the difference macroblock that would be coded after finding the matching macroblock from motion compensation. You may choose either to use Mean Squared Error (MSE), Sum Absolute Difference (SAD) or Mean Absolute Difference (MAD) in your calculation. [11 marks] . # # # # # # 6 4 2 2 # # Figure Q3(c)(i) # # # # 5 1 4 3 3 6 4 7 5 3 2 3 Figure Q3(c)(ii) 2 3 3 3

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