A POCS-based method for reducing artifacts in BDCT compressed images

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)22_Publication in policy or professional journal

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Original languageEnglish
Pages (from-to)253-256
Journal / PublicationProceedings - International Conference on Pattern Recognition
Issue number2
Publication statusPublished - 2002


The theory of projection onto convex sets (POCS) is applied to reduce blocking artifacts in compressed images coded by the block discrete cosine transform (BDCT). An image before compression is simulated by a triangular mesh, which is the basis of a proposed smoothness constraint set. The mesh is constructed by dividing each block into a set of triangles. The proposed method outperforms four existing methods subjectively and objectively. © 2002 IEEE.