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- W910339344 abstract "Image upsampling can be performed in both spatial and frequency (transform) domain. In the spatial domain, various upsampling techniques are developed and 6-tap FIR interpolation filter is most well known method, which is embedded in many video coding standards. It can provide high subjective quality but shows low objective quality. In the transform domain, simple zero padding method can produce upsampled image easily. It shows better objective quality than 6-tap filtering, but it yields ringing effects which annoy eyes. In this paper, we present efficient upsampling method using frequency addition method in transform domain to provide better subjective and objective quality than conventional method Extensive simulation results show that the proposed algorithm produces visually fine images with high PSNR." @default.
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- W910339344 date "2005-01-01" @default.
- W910339344 modified "2023-09-24" @default.
- W910339344 title "Efficient Image Upsampling using Frequency Resolution Expansion Schemes in DCT Domain" @default.
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