Efficient implementation of Filtering-Direction-Controlled Digital TV Filter for image denoising
2015
We propose the efficient implementation of Filtering-Direction-Controlled Digital Total-Variation Filter (FDC-DTVF) for real-time image denoising. FDC-DTVF produces a clear image compared to the conventional pixel-based denoising methods, but has not yet to be considered regarding its efficient implementation. We conduct algorithm optimization by reusing a calculated criterion that is newly introduced in FDC-DTVF, since the criterion is almost invariant in each step of the iterative process. We also conducted a software implementation so we can more efficiently use the CPU resource. The simulation results showed that our implementation achieves the real-time processing for a VGA video, while maintaining the image denoising performance.
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