For Project Enquiry +91 9962 067 067

EXISTING SYSTEM

PROPOSED SYSTEM

EXISTING CONCEPT:

        Digital filters are one of the most commonly used signal processing circuits and several techniques have been proposed to protect them from errors.

·         Filters are used to detect and reduces the bit errors.

PROPOSED CONCEPT:           

A scheme of approximation of DCT should have the following features:

i) It should have low computational complexity.

ii) It should have low error energy in order to provide compression performance close to the exact DCT, and preferably should be orthogonal.

EXISTING TECHNIQUE:

         Discrete cosine transform (DCT)

PROPOSED TECHNIQUE:

         Binary version of high-size DCT (BDCT) adopted DCT

TECHNIQUE DEFINITION:

         The transform is orthogonal, we can always find its  Inverse, and the kernel matrix of the inverse transform is obtained by just transposing the kernel matrix of the forward transform. This feature of inverse transform could be used to compute the forward and inverse DCT by similar computing structures

TECHNIQUE DEFINITION:

         It is easily scalable for hardware as well as software implementation of DCT of higher lengths, and it can make use of the best of the existing approximations of 8-point DCT

DRAWBACKS:

         operates on differences of the same pixel pairs

ADVANTAGES:

         good compression performance due to the efficiency of  (C8)  and secondly the implementation will be much simpler, scalable and reconfigurable