Summary
In packet switched networks, packets may get lost during transmission. As these networks are more and more used for image and video communication, there is a growing need for efficient reconstruction algorithms. In wavelet coded images, the lost coefficients are typically replaced by zeros. This results in annoying black holes in the received image, mainly due to the loss of the low frequency content. In this chapter, we present a novel locally adaptive interpolation method for the reconstruction of the lost low frequency coefficients. We interpolate a lost low frequency coefficient from its four neighbors, and we determine the interpolation weights by the energy of the corresponding coefficients in the high frequency subbands.
Compared to older methods of similar complexity, the proposed scheme estimates the lost coefficients much better: the Peak Signal to Noise Ratio is increased with up to 4.3 dB. The results demonstrate a significant improvement of the visual quality.
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References
Wang, Y., Zhu, Q.: Error control and concealment for video communication: A review. Proceedings of the IEEE 86(5) (May 1998) 974–997
Stoufs, M., Barbarien, J., Verdicchio, F., Munteanu, A., Cornelis, J., Schelkens, P.: Error protection and concealment of motion vectors in MCTF-based video coding. In: Proc. Optics East. Volume 5607., Philadelphia, PA, USA (Oct. 2004) 71–80
Baji’c, I., Woods, J.: Domain-based multiple description coding of images and video. IEEE Trans. on Image Processing 12(10) (Oct. 2003) 1211–1225
Hemami, S., Gray, R.: Subband-coded image reconstruction for lossy packet networks. IEEE Transactions on Image Processing 6(4) (April 1997) 523–539
Baji’c, I.: Adaptive MAP error concealment for dispersively packetized waveletcoded images. IEEE Trans. on Image Processing 15(5) (May 2006) 1226–1235
Rombaut, J., Pižurica, A., Philips, W.: Passive error concealment for wavelet coded images adapted to a directional image correlation. In: Proc. Optics East. Volume 6001., Boston, Massachusets, USA (Oct. 2005) 60010M 1–10
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Rombaut, J., Pižurica, A., Philips, W. (2008). Intersubband Reconstruction of Lost Low Frequency Coefficients in Wavelet Coded Images. In: Damiani, E., Yétongnon, K., Schelkens, P., Dipanda, A., Legrand, L., Chbeir, R. (eds) Signal Processing for Image Enhancement and Multimedia Processing. Multimedia Systems and Applications Series, vol 31. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-72500-0_21
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DOI: https://doi.org/10.1007/978-0-387-72500-0_21
Publisher Name: Springer, Boston, MA
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