K.R. Rao
Also known as Kamisetty R. Rao
K.R. Rao was an electrical engineer whose work on the discrete cosine transform (DCT) supported digital signal processing and communications. He earned engineering degrees in India and the United States and joined the University of Texas at Arlington in 1966. His work included a 1990 DCT book, a 1998 paper on image and video segmentation, and a 2010 book on discrete cosine and sine transforms. He was named an IEEE Fellow in 2000 and to UTA's Academy of Distinguished Scholars in 2008, and he died in 2021 at age 89 after 54 years at UTA.
- Works
- 475
Publication numbers from OpenAlex, as of 15 October 2026. Citations and h-index are hidden because this OpenAlex record may be incomplete or mix in other authors.
Timeline
-
1952–1966
Engineering education
He earns a B.E. in electrical engineering from the University of Madras in 1952, two M.S. degrees from the University of Florida in 1959 and 1960, and a Ph.D. from the University of New Mexico in 1966.
-
1966–2021
Professor at UT Arlington
He joins the electrical engineering faculty at UTA in 1966 and serves as a professor for 54 years.
-
1974
The discrete cosine transform
He co-invents the discrete cosine transform in 1974, a method central to digital signal processing and communications.
-
1990–1998
DCT books and image coding
In 1990, he coauthors Discrete Cosine Transform: Algorithms, Advantages, Applications. In 1998, he coauthors an IEEE workshop paper on edge enhancement for image and video segmentation and compression.
-
2000
An IEEE fellowship
IEEE names him a Fellow in 2000.
-
2008
An Academy of Distinguished Scholars
UTA names him to its Academy of Distinguished Scholars in 2008.
-
2010
A second transform book
With Vladimir Britanak and Patrick C. Yip, he coauthors Discrete Cosine and Sine Transforms: General Properties, Fast Algorithms and Integer Approximations in 2010.
-
2021
Death after 54 years at UTA
He dies in 2021 at age 89 after 54 years at UTA.
Sources and credits
Photo: We have no published photo of K.R. Rao yet. Send us a free-licensed photo.