VR-aware sharpening and denoising tools can produce very good results as long as video isn’t oversharpened. There is a second technique available which permits editors to use even more powerful sharpening and denoising tools than the limited, VR-aware versions. If the original source videos are processed individually before stitching, more nuanced sharpening and denoising tools can be used. The stitching process will then use those sharpened/denoised source videos, and the final results will already be sharpened. An additional advantage to sharpening and denoising the source videos prior to stitching is enabling the use of newer, AI-based sharpening and denoising tools like those from Topaz Labs. These tools are not VR-aware, but they can be used before stitching to address soft focus, crushed shadows, general sharpness, and low-light sensor noise.
Note that these traditional tools can also be used effectively on 180 and 3D-180 footage, which do not have seams at the edges.