Question: Question 4 (a) Analyze a sequence of decoded video frames that is Frame 1, Frame 2, Frame 5, Frame 3, Frame 4. Answer the following

Question 4 (a) Analyze a sequence of decoded video frames that is Frame 1, Frame 2, Frame 5, Frame 3, Frame 4. Answer the following three questions. (i) Only Frame 1 is encoded as I frame, analyse the encoding modes of rest frames. (5 marks) (ii) If Frame 2 is lost during video transmission, appraise how this lost frame can affect the image qualities of rest frames. (5 marks) (iii) If Frame 3 is lost during video transmission, appraise how to recover the lost Frame 3 in video decompression. (5 marks) (b) An intruder wants to break the Internet banking system of two banks. For the bank A, the password has a 6 characters length; it can be alphanumetic and case insensitive. For the bank B, the password has an 8 characters length; it can be alphabet only and case sensitive. Debate which banking system is easier to be broken by this intruder. (10 marks)

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