A method of image reconstruction for a magnetic resonance imaging (MRI) system (100) having a plurality of coils (136) includes obtaining k-space scan data captured by the MRI system (100), the k-space scan data being representative of an undersampled region over time, determining a respective coil sensitivity profile for the region for each coil of the plurality of coils (136), and iteratively reconstructing dynamic images for the region from the k-space scan data via an optimization of a minimization problem. The minimization problem is based on the determined coil sensitivity profiles and redundant Haar wavelet transforms of the dynamic images