1. A method, comprising: generating an initial motion field based on apparent motion of one or more objects between digital images; determining matching patches of a nearest neighbor field for the digital images; determining one or more region patch matches between the digital images based on the nearest neighbor field; and determining optimal pixel assignments for a fused image representation of the digital images, an optimal pixel assignment at each pixel location of the fused image representation determined based on multiple labels that correspond to a pixel location, the multiple labels including the initial motion field at the pixel location, a matching patch at the pixel location, and one or more of the region patch matches that encompass the pixel location.