A Comparative Analysis on Coordinate Rotation Digital Computer (CORDIC) Algorithm and Its use on Computer Vision Technology

Computer Vision is a needful technology of present time, further augmented by the current era of Multi Dimension vision System based on high speed network. It has been an established belief that Social media is most needful and promising application for all of us in the present scenario. This generates the need for various computer vision algorithms in order to further improve the quality of social media which in turn leads to impact on the consumer. Most of the computer vision algorithms need the computation consisting of two steps-namely arithmetic computation and trigonometric computation. The complexity is mostly by the trigonometric computations, which generates a need for separate algorithms which performs the entire trigonometric task. In this work one well known algorithm called CORDIC (Rotation Digital Computer), another name is digit by digit approach and Volder's calculation has been addressed. In this, a novel processing strategy is utilized which is particularly reasonable for understanding the trigonometric connections associated with plane organize revolution and change from rectangular to polar directions. CORDIC calculation is additionally appropriate for square root, Logarithmic, Exponential capacity and for computer based computations. In this paper, a comparative study amongst the available CORDIC algorithms has been presented with study of their performance on discrete cosine transform (DCT)application as an example case.