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Compressed digital image technology is fundamental to a variety of consumer electronics applications. Coded images are often accessed in part rather than in whole, by accessing spatial regions of interest (ROIs). In many application architectures, the decoding process to access each ROI may occur separately - even when there are multiple such ROIs to be accessed within the same image. Moreover, some...
Using ideas from automata theory we design a new efficient (deterministic) identity test for the noncommutative polynomial identity testing problem (first introduced and studied in [RS05, BW05]). More precisely, given as input a noncommutative circuit C{x1, ldrldrldr , xn} computing a polynomial in F{x1, ldrldrldr , xn} of degree d with at most t monomials, where the variables xi are noncommuting,...
Entropy encoding is a term referring to lossless coding technique that replaces data elements with coded representations. Entropy encoding in combination with the transformation and quantization results in significantly reduced data size. For any conventional multimedia coding, entropy encoding is a bit assigning and lossless module. Since entropy encoding is a lossless module, compression ratio is...
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