Adaptive convolutional dictionary learning for denoising seismocardiogram to enhance the classification performance of aortic stenosis

Bowen Xu, Fangfang Jiang, Ziyu Zhu, Haobo Meng, Lisheng Xu

Abstract: Highlights•A novel application of convolutional dictionary learning for denoising seismocardiogram (SCG).•Sparse modeling of SCG as the theoretical foundation enabling noise reduction.•Optimized denoising parameters determined through grid search on a self-collected SCG dataset.•Enhancement of Aortic stenosis classification using denoised SCG.