How to improve the quality of orthoprojection image results

We hope to use reality capture to build the 3D model of the murals, and restore the 2D images of the murals through orthoprojection. However, it is found that the clarity of the result of the orthoprojection was not high enough.
Here are our steps:
align images
Normal detail to create model
Ortho Projection. And in this steps, we set Rendering method as Image mosaicing (general)
Export result. We set result as Bigtiff format.

I want to know, is there any other parameter that can adjust the sharpness of the orthoprojection result?

Hi RareMat9726,
Image mosaicing is still as beta and it is mostly for aerial images now. Have you tried also other rendering methods?

Yes, I tried other rendering methods, but the result of “True ortho from textured model” is worse than Image mosaicing.

Have you textured your model? If so, what were the texture settings?