MIRACO settings for scanning a limestone epitaph in a dark church - advice needed

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20260614_165301
20260614_1653011751Ă—2334 504 KB

Hello everyone,

I would like to ask for some practical advice on the best settings and workflow for scanning a historical epitaph with a standard Revopoint MIRACO scanner.

The object is located inside a church, so the lighting conditions are rather dark and there is no daylight. The material is a light-colored limestone, not strongly glossy or reflective. The surface mainly consists of a carved inscription, so I expected it to be a suitable object for scanning: pale stone, some relief, no strong reflections, and enough surface structure.

The picture has bad quality, for real the inscription is good to read and sharp.

However, I had considerable problems with tracking. The scanner repeatedly lost tracking, even though the inscription should theoretically provide enough geometry and texture.

Since this is a historical monument, I cannot apply anything to the surface, and the scan has to be done in a rather quick-and-dirty way on site. So I am especially interested in settings that work without any preparation of the object.

Should I use Near Mode or Far Mode for this kind of object?

I tried both, and the large object mode, also continouos/single shot - tracking was very bad in both ways.

I am using firmware v.1.2.8.5, and also checked enhanced tracking.

I was using auto exposure.

The main problem is not capturing the stone surface itself, but keeping stable tracking while moving across the inscription.

I would be very grateful for any practical recommendations from people who have scanned stone inscriptions, church monuments, gravestones, reliefs, or similar objects with the MIRACO.

Thanks in advance!

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Hi Daniel ,

Not so I asy task here , since you already checked in the new tracking feature .
The only way I would try is Far mode overall for base capture then trying Near mode to capture close up of the inscription , I would also use some portable LEDs to make little more dramatic light from the side to help with the relief in image itself .

Since the stone is build inside the wall it is not an easy task for sure , I would use one or two of my monopods with magnetic geometric markers on it on both sides or use markers tape in it to help with the tracking in Far mode , I see no other way around .

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Why is this so difficult? The surface should be easy to pick up, and there are enough features…i can’ use additional light in this setting…only quick&dirty The only thing I haven’t tried is to scan parts an merge afterwards…
Question: how to combine far and near modes? - pause and resume scan?

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It is better to scan fragments first , then pause and switch to the Far mode , scan near mode fragments first , when merging make sure the near mode fragments is selected as first to preserve the accuracy .

Start with near mode , pause switch to Far mode after and finish the fragments

The tracking is based on geometry especially the change of the outside volume , the relief for that reason may be harder to be tracked but , it is hard r to pin point without actually doing it .

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