IMPLEMENTATION OF FORWARD 8x8 INTEGER DCT FOR H.264/AVC FRExt

Yıl 2017, Sayı: 1, 353 - 358, 09.11.2017

Bunji Antoinette Ringnyu Ali Tangel

Öz

The H.264/AVC image encoding standard has been used in
many systems, especially in HD(High Definition) devices because of the introduction
of the FRExt standard, which  leads to
additional characteristics in this standard like the Higher Resolution and
Higher Bit rates. With the introduction of the FRExt, a good number of
amendments are added to the AVC standard, most importantly at the level of the
transform block. In addition to the 4x4 Integer DCT, there is  an  8x8
Integer DCT  (Discrete Cosine Transform)
matrix. This
work focuses on the Forward 8x8 Integer Transform block implementation of the
H.264 FRExt standard, exploring different methods of implementations, and
examining how these methods affect the hardware and the maximum frequency.
There is the 2D implementation (Matrix multiplication) using multipliers and
adders and the 1D implementation(butterfly algorithm) using adders. These
implementations are done using VHDL and MATLAB. The
simulations are done in Vivado Design Suite.

Anahtar Kelimeler

H.264 FRExt, integer DCT, image compression, VHDL

Kaynakça

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