1. In a digital medium environment in which multiple videos are synthesized to create at least one merged images using an automated mechanism to register the multiple videos, a method implemented by at least one computing device, the method comprising: obtaining, by the at least one computing device, the multiple videos, each video of the multiple videos including a sequence of multiple frames; linking, by the at least one computing device, respective frames from respective videos of the multiple videos to produce linked frames based on multiple camera poses determined from a three-dimensional scene reconstruction, the linking including checking a pixel matching using a consistency error based on at least one bi-directional flow between the respective frames to be linked; producing, by the at least one computing device, aligned frames using point guidance by aligning the linked frames based on spatial points identified in the three-dimensional scene reconstruction; and generating, by the at least one computing device, the at least one merged image based on the aligned frames from the multiple videos.