A Note on Stone's Conjecture of Blind Signal Separation
Neural Computation
The stability of variable step-size LMS algorithms
IEEE Transactions on Signal Processing
Convolutive Blind Source Separation in the Frequency Domain Based on Sparse Representation
IEEE Transactions on Audio, Speech, and Language Processing
Error concealment in MPEG video streams over ATM networks
IEEE Journal on Selected Areas in Communications
Concealment of damaged block transform coded images using projections onto convex sets
IEEE Transactions on Image Processing
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A new error concealment method based on optical flow is proposed, as a post-processing tool at the decoder side to recover the lost information during the video transmission. The conventional error concealment methods often result in blocking effects because of inaccurate motion vectors estimation. We use the attractive property of optical flow technique on motion estimation to recover the lost block in pixelwise manner. To increase the convergence, we use fuzzy rule to construct the step size. Simulation results show that the proposed method can recover the higher quality image on both subjective visual evaluation and objective numerical metrics, comparing to the existing error concealment methods.