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We develop new multiscale amplitude-modulation frequency-modulation (AM-FM) demodulation methods for image processing. 1 The approach is based on three basic ideas: i) AM-FM demodulation using a new multiscale filterbank, ii) new, accurate methods for instantaneous frequency (IF) estimation, and iii) multiscale least squares AM-FM reconstructions. In particular, we introduce a variable-spacing local linear phase (VS-LLP) method for improved instantaneous frequency (IF) estimation and compare itdoi:10.1109/tip.2010.2040446 pmid:20071260 fatcat:a77ryrufhrecho76yghylgez44