jan 1, 1972 - DCT compression was first proposed by Nasir Ahmed
Description:
A discrete cosine transform expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different frequencies. The DCT, first proposed by Nasir Ahmed in 1972, is the most widely used transformation technique in signal processing and data compression.Added to timeline:
Date:
jan 1, 1972
Now
~ 53 years ago