Hi,
I found that there seems to be a "magick" block size when exporting orthos: 6000x6000px. So when you export large orthos there are blocks visible of this size.. So I wrote a python script that exports the ortho in smaller but overlapping blocks into tif with alpha and did the final mosaicking with opensource tools and some scripting externally of PS.
besides improvements in mosaicking, I made the following experience:
When you have hazy images, the pointcloud seems to become very "unprecise" and tends to scatter the ponts alot around z ==> noisy appearance.
When doing the haze correction, the images become clearer, more "crispy" and textures seem not to be disturbed by the noise. ==> less noisy, more smooth point cloud that describes surfaces better.
But you shuld be careful with image filterering to reduce noise,because you also may have effects on the appearance of texture, e.g. when using mean or median filters or things like Kuwahara Filter, Meanshift and that kind of stuff.