Ravi Palaparthi

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The reconstructed images from block based DCT compression produce visible artifacts at block boundaries due to coarse quantization of coefficients. In this paper a post processing algorithm is proposed for reduces the blocking artifacts without removing perceptual quality. For smoothing and non smoothing regions are removed by modifying a few DCT(More)
Surface texture of CMP polishing pads strongly affects the fluid mechanics of the polishing slurry and the state of pad-wafer contact. A flow-based texture characterization, using fluid pressure drop profiles measured across pad samples compressed by a flat instrumented plate, shows the extent of pad contact, the flow uniformity, and the relative(More)
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