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fastest method for DCT implementation on FPGA

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ghattas.akkad

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hello i want to implement a 2D DCT on FPGA i have little experience working with complex implementations as such
i did some reasearch and was wondering what is the difference between several implementation methods in speed and efficiency for 2D DCT

does anybody know what's better to use to calculate the cosine values and avoid much floating point operations?

taylor series implementation to calculate the cosine values?
or
CORDIC implementation?
 

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