Encode the low-low band using an adptive delta modulator

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In this problem we look at some of the many ways we can encode the subimages obtained after subsampling. Use the eight-tap Johnston filter to decompose the Sena image into four subimages.

(a) Encode the low-low band using an adptive delta modulator (CFDM or CVSD). Encode all other bands using a 1 -bit scalar quantizer.

(b) Encode the low-low band using a 2-bit adaptive DPCM system. Encode the low-high and high-low bands using a 1 -bit scalar quantizer.

(c) Encode the low-low band using a 3-bit adaptive DPCM system. Encode the low-high and high-low band using a 0.5 bit/pixel vector quantizer.

(d) Compare the reconstructions obtained using the different schemes.

Reference no: EM131325346

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