Experiment: Influence of ISO in photogrammetry

3D Model

Results of an experimental setup to test the effect of different ISO sensitivities of the source images. Study on the qualitative use of close-range photogrammetry for Hochschule Mittweida - University of Applied Scienes. No source images with full resolution were used for the reconstruction, but a resolution reduced by a factor of four (high accuracy settings in Metashape). The results were drastically changed compared to a full resolution.

! The mesh was reduced to fit with the 50mb upload limit for free users !

Heatmap of MSE:

• 32 images 3648x5472
• 2 rows
• 4k textures

Camera: Samsung NX30 with 60mm macro f/25, ISO 100/800/6400/25600, 1,6s, 20MP

Metashape: Images masked, highest alignment precision, high cloud accuracy, high mesh resolution