Yan Zhang 0060 Haitao Pu Jian Lian Quick response barcode deblurring via <i>L</i> <sub>0</sub> regularisation based sparse optimisation. 1254-1258 2019 13 IET Image Process. 8 https://doi.org/10.1049/iet-ipr.2018.5738 db/journals/iet-ipr/iet-ipr13.html#ZhangPL19