COMPARISON OF 8 × 8 INTEGER DCTs USED IN H.264, AVS-CHINA AND VC-1 VIDEO CODECS. Submitted by, Ashwini Urs and Sharath Patil Under guidance of Dr.K.R.Rao. Introduction. Integer DCT. KLT is the statistically optimal transform. The performance of DCT is close to the performance of KLT .
COMPARISON OF 8 × 8 INTEGER DCTs USED IN H.264, AVS-CHINA AND VC-1 VIDEO CODECS
Ashwini Ursand Sharath Patil
Under guidance of
Integer DCTs compared
Comparison of the properties of integer DCTs
where DOT is discrete orthogonal transform and [Σ] is the covariance matrix in spatial
Choose values of θ betweent 0.1 and 1. For the same values of θ, D and RD are calculated .
where are arranged in decreasing order .
for N = 8 as a function of ρ .
where is the variance of the ith co-efficient in the transform domain.
Results and Conclusion
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