STAGE 1: Acquire photos using
standard digital camera

STAGE 2: Measure common pass
points on each image

STAGE 3: Carry out Orientation
to produce orthorectified images

STAGE 4: Trace geometry on
subject / define polygons for surface measurement

STAGE 5: 3D surface modelling
carried out automatically

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STAGE 6: Interrogate and
measure model in 3D space