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Interlaced to progressive scan conversion for HD-MAC application

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1 Author(s)
Hwang, H. ; Samsung Electronics., Suwon, South Korea

A multilevel nonlinear filter for simultaneous edge detection and noise suppression called a nested median filter/median averaging filter (NMF/MAF) pair is introduced. On the basis of the NMF/MAF pair, an interlaced-to-progressive (I/P) conversion is proposed to estimate motion vectors in the 40-ms mode of the HD-MAC system. Test results for HD-MAC applications confirmed that the proposed I/P conversion scheme was robust in preserving sharp edges, inhibiting edge shifting, and suppressing impulsive noise. The motion compensation interpolated HD-MAC image sequence with the proposed I/P conversion scheme showed 4~6 dB to the improvement in peak SNR (peak signal-to-noise ratio) compared to the interlaced scheme. A structural overview for implementation of the NMF/MAF integrated circuit is described. The features of this circuit are an integrated dynamic RAM based on horizontal line memories, a high-speed bubble sorter, and a window option circuit

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Consumer Electronics, IEEE Transactions on  (Volume:38 ,  Issue: 3 )