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Introduction to Discrete Cosine Transform and Quantization

Introduction to Discrete Cosine Transform and Quantization. DSP TA: Wei-Nien Chen 2007/05/09. Typical Transform coding scheme. Discrete cosine transform. Any signal= ? cosine of various frequencise. Decompose signals into combinations of DCT basis vectors. 1-D DCT. 2-D DCT (8x8). Why DCT.

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Introduction to Discrete Cosine Transform and Quantization