(a) Suppose we want to achieve four different frame rates at 3 frames/s, 6 frames/s, 12...

 

Transcribed Image Text:

(a) Suppose we want to achieve four different frame rates at 3 frames/s, 6 frames/s, 12 frames/s and 24 frames/s using the hierarchical prediction structure of H.264 for a video. Design the group of picture (GOP) structure and show the encoding order and display order of each picture for at least 2 GOPs. (5 marks) (b) A source of symbols with different probabilities of occurrence and their corresponding Huffman codewords are shown in Table Q2. Symbol A B C D E F G Probability Huffman Codeword 0.25 0.25 0.15 0.15 0.1 0.05 0.05 Table Q2 01 10 001 110 0001 11110 11111 (1) Design a reversible Huffman codeword for each symbol of the source. (4 marks) (ii) What is the increment in average bit-rate when compared with the original Huffman codewords? Activ Go to (3 marks) (a) Suppose we want to achieve four different frame rates at 3 frames/s, 6 frames/s, 12 frames/s and 24 frames/s using the hierarchical prediction structure of H.264 for a video. Design the group of picture (GOP) structure and show the encoding order and display order of each picture for at least 2 GOPs. (5 marks) (b) A source of symbols with different probabilities of occurrence and their corresponding Huffman codewords are shown in Table Q2. Symbol A B C D E F G Probability Huffman Codeword 0.25 0.25 0.15 0.15 0.1 0.05 0.05 Table Q2 01 10 001 110 0001 11110 11111 (1) Design a reversible Huffman codeword for each symbol of the source. (4 marks) (ii) What is the increment in average bit-rate when compared with the original Huffman codewords? Activ Go to (3 marks)

Answer rating: 100% (QA)

a To achieve the desired frame rates using H264 hierarchical prediction structure we need t... View the full answer