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arXiv · 2609.16796

Time-warping estimation via stationarity-based learning of the de-warped signal

Corentin Presvôts·Adrien Meynard
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Abstract

Time-warping estimation is a fundamental problem in signal processing with applications in bioacoustics, radar, and biomedical analysis. This paper introduces a Time-Warping Estimation Trainable (TWET) model for estimating timewarping functions from a single observation. The proposed approach formulates time-warping estimation as a stationarization problem in the wavelet domain and leverages a hierarchical dilated convolutional architecture to estimate the time-warping functions. A differentiable stationarity criterion is introduced for end-to-end optimization. TWET is compared with existing approaches. Experimental results show improved deformation reconstruction accuracy together with significantly reduced computation time, making the framework compatible with low-latency applications.

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Corentin Presvôts, Adrien Meynard. 2026-09-15. Time-warping estimation via stationarity-based learning of the de-warped signal. https://arxiv.org/abs/2609.16796

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