This work focuses on non-blind SISR which assumes the blur kernel and noise level are known beforehand. In fact, non-blind SISR is still an active research direction.
First, the blur kernel and noise level can be estimated, or are known based on other information (e.g., camera setting).
Second, users can control the preference of sharpness and smoothness by tuning the blur kernel and noise level.
Third, non-blind SISR can be an intermediate step towards solving blind SISR.
@cszn 你好,我问一下论文代码里的模糊核是已知项还是未知项,看你论文里写的是已知模糊核输入,然后去模糊,这里有点不明白