Abstract
Noise is unavoidable in digital signal processing, therefore studying effective denoising method is very important. Bilateral filter is one of them as effective filter methods. But the parameters of conventional bilateral filter are often fixed, thus we can’t realize adaptive parameters according to contents of videos or pictures. A video denoising algorithm based on both spatial domain and time domain is proposed in this paper to improve the video quality based on bilateral filter. This algorithm can adaptively estimate noise intensity, edge intensity and apply motion detection, which will be employed to adaptively adjust the bilateral filter strength. Peak signal to noise ratio (PSNR) is elevated significantly by the proposed algorithm after experimental verification..
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