Undecimated Wavelet Transforms for Image De-noising

[摘要] A few different approaches exist for computing undecimated wavelet transform. In this work we construct three undecimated schemes and evaluate their performance for image noise reduction. We use standard wavelet based de-noising techniques and compare the performance of our algorithms with the original undecimated wavelet transform, as well as with the decimated wavelet transform. The experiments we have made show that our algorithms have better noise removal/blurring ratio.

[发布日期] 2002-11-19 [发布机构] Lawrence Livermore National Laboratory

[关键词] Signal-To-Noise Ratio;99 General And Miscellaneous//Mathematics, Computing, And Information Science;Algorithms;Images;Image Processing