Flicker reduction for motion JPEG2000 using wavelet thresholding

Flickering is a temporal visual artifact that impairs significantly the visual quality of the compressed videos. Motion JPEG2000 is a wavelet-based intraframe video codec, and has also a drawback of flicker artifact, tn this paper, we introduce a new approach to flicker reduction of videos compressed by Motion JPEG2000 by using wavelet thresholding. We view this flicker reduction as a denoising problem in the temporal domain, and apply the excellent denoising property of wavelet thresholding in solving this flicker reduction problem. Compared with the conventional methods reported in the literature, It is shown from our experimental results that our wavelet-based method both suppresses the flicker artifact and achieve an improvement in PSNR and in TI.