resolutions of Orthomosaic

[jessica_tay]

Hello to everyone!

I realised that one can set the resolution of the orthomosaic, but if it was left alone, Photoscan will just assign its own resolution.
My question is, does it really become higher resolution if we set it manually? or is there a limit or threshold as to how high res the image can go? If that is the case, the default resolution size set by PS should be the highest resolution?

Thanks! Any explanation is appreciated.

jessica

[stihl]

The default value is the average photo resolution found across all the images. This corresponds directly with the project GSD value.

Upsampling (entering a lower value) will result in a higher resolution photo but the pixels that it's lacking are being interpolated by the neighboring pixels. So in essence the Ortho will have a higher resolution but the level of detail will remain in the same. So there isn't really any point unless you need an Ortho on a specific resolution.