Scalar and Vector Quantization

Basic Concept of Quantization
Quantization is the process of representing a large,
possibly infinite, set of values with a smaller set
Example: real-to-integer conversion
Source: real numbers in the range [–10.0, 10.0]
Quantizer: Q(x) = ⎣x + 0.5⎦
[–10.0, –10.0] → { –10, –9, …, –1, 0, 1, 2, …, 9, 10}
The set of inputs and outputs of a quantizer can be
scalars (scalar quantizer) or vectors (vector quantizer)
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