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Maximum-likelihood parameter estimation for image ringing-artifact removal
2001
IEEE transactions on circuits and systems for video technology (Print)
At low bit rates, image compression codecs based on overlapping transforms introduce spurious oscillations known as ringing artifacts in the vicinity of major edges. Unlike previous works, we present a maximum-likelihood approach to the ringingartifact removal problem. Our approach employs a parameter-estimation method based on the -means algorithm with the number of clusters determined by a cluster-separation measure. The proposed algorithm and its simplified approximation are applied to
doi:10.1109/76.937440
fatcat:qbqfdpn5enh65ekf4ftgt7h3ji