Dequantizer Cache

p = {level, qval, qscale, type}

Hashing: H(p)

In cache?

Index = cacheEntry[H(p)]

I u,v = dequantize(p)

Store index in cache

Y

N

Translate to index of

scaled vector

• Level: macroblock quantizer scale

• qval: quantized symbol

• qscale: element quantizer scale

• type: intra/inter-frame encoding

Previous slide

Next slide

Back to first slide

View graphic version