Multiplier-less discrete sinusoidal and lapped transforms using sum-of-powers-of-two (sopot) coefficients

  title={Multiplier-less discrete sinusoidal and lapped transforms using sum-of-powers-of-two (sopot) coefficients},
  author={Shing-Chow Chan and P. M. Yiu},
This paper proposes a new family of multiplier-less discrete cosine and sine transforms called the SOPOT DCTs and DSTs. The fast algorithm of Wang [lo] is used to parameterize all the DCTs and DSTs in terms of certain (2x2) matrices, which are then converted to SOPOT representation using a method previously proposed by the authors [7]. The forward and inverse transforms can be implemented with the same set of SOPOT coefficients. A random search algorithm is also proposed to search for these… CONTINUE READING

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