Discrete Cosine Transform
He, along with two other researchers, N. Ahmed and T. Natarajan, introduced the Discrete Cosine Transform (DCT) in 1975 which has since become very popular in digital signal processing. DCT, INTDCT, directional DCT and MDCT (modified DCT) have been adopted in several international video/image/audio coding standards such as JPEG/MPEG/H.26X series and also by SMPTE (VC-1)and by AVS China.
Read more about this topic: K. R. Rao
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