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This paper proposes a new approach to combined spatial (Intra) prediction and adaptive transform coding in block-based video and image compression. Context-adaptive spatial prediction from available, previously decoded boundaries of the block, is followed by optimal transform coding of the prediction residual. The derivation of both the prediction and the adaptive transform for the prediction error, assumes a separable first-order Gauss-Markov model for the image signal. The resulting optimaldoi:10.1109/icassp.2010.5495043 dblp:conf/icassp/HanSR10 fatcat:bczlke3gbbhxtlevpwpc4uecse