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lect916h - Model-Based Video Coding Model-Based Compression...

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1 Model-Based Video Coding Model-Based Compression • Object-based • Knowledge-based • Semantic-based
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2 Model-Based Compression • Analysis • Synthesis • Coding Video Compression • MC/DCT – Source Model: translation motion only – Encoded Information: Motion vectors and color of blocks • Object-Based – Source Model: moving unknown objects translation only • affine affine with triangular mesh – Encoded Information: Shape , motion, color of each moving object
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3 Video Compression • Knowledge-Based – Source Model: Moving known objects – Encoded Information: Shape, motion and color of known objects • Semantic – Source Model: Facial Expressions – Encoded Information: Action units Object Segmentation Frame k-1 Frame k
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