Fig. 2.

Multi-frame motion deblurring forward model. $\mathbf{y}$ is the blurred measurement and $\mathbf{x}$ is the static object to be recovered. The operations in the blue box can be represented as a 1D convolution matrix $\mathbf{A}$, consisting of windowing operators $\mathbf{W}$ and blur kernels $\mathbf{h}$. $[\ast ]$ denotes 2D convolution and $[\cdot ]$ denotes the element-wise product.