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The main objective of this paper is to establish a procedural method for measuring and cataloguing antlers through the use of laserscanner and of a 3D reconstruction of complex modeling. The deer's antlers have been used as a test and subjected to capture andmeasurement. For this purpose multiple data sources techniques have been studied and compared, (also considering low-costsensors) estimating the accuracy and its errors in order to demonstrate the validity of the process. A further development is thecomparison of results with applications of digital photogrammetry, considering also cloud computing software.  The study has began with an introduction to sensors, addressing the underlying characteristics of the technology available, the scopeand the limits of these applications. We have focused particularly on the "structured light", as the acquisition will be completedthrough three-dimensional scanners: DAVID and the ARTEC MH.  The first is a low-cost sensor, a basic webcam and a linear laser pointer, red coloured, that leads to acquisition of three-dimensionalstrips. The other one is a hand scanner; even in this case we will explain how to represent a 3D model, with a pipeline that providesdata export from the "proprietary" to a "reverse engineering" software. Typically, these are the common steps to the two approachesthat have been performed in WRAP format: point sampling, manual and global registration, repair normals, surface editing andtexture projection. In fact, after a first and common data processing was done with the use of a software supplied with theequipment, the proto-models thus obtained were treated in Geomagic Studio, which was also chosen to allow the homogenizationand standardization of data in order to make a more objective comparison.  It is commonplace to observe that the editing of the digital mock-up obtained with the DAVID – which had not yet been upgraded tothe 3.5 release at the time of this study - is substantially different. In the ARTEC digital mock-up for example, it shows the ability toselect the individual frames, already polygonal and geo-referenced at the time of capture; however, it is not possible to make anautomated texturization differently from the low-cost environment which allows to produce a good graphics’ definition.Once the final 3D models were obtained, we have proceeded to do a geometric and graphic comparison of the results. Therefore, inorder to provide an accuracy requirement and an assessment for the 3D reconstruction we have taken into account the followingbenchmarks: cost, captured points, noise (local and global), shadows and holes, operability, degree of definition, quality andaccuracy.  Subsequently, these studies carried out in an empirical way on the virtual reconstructions, a 3D documentation was codified with aprocedural method endorsing the use of terrestrial sensors for the documentation of antlers.The results thus pursued were compared with the standards set by the current provisions (see "Manual de medición" of Governmentof Andalusia-Spain); to date, in fact, the identification is based on data such as length, volume, colour, texture, openness, tips,structure, etc. Data, which is currently only appreciated with traditional instruments, such as tape measure, would be wellrepresented by a process of virtual reconstruction and cataloguing

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

3D-ANTLERS: VIRTUAL RECONSTRUCTION AND THREE-DIMENSIONAL MEASUREMENT