Porovnať metódy

	Structure from Motion	Intrasite Spatial Analysis	Magnetometry Survey
Odbor	Archeológia	Archeológia	Archeológia
Rodina	Process / pipeline	Process / pipeline	Process / pipeline
Rok vzniku	2012	1976	1958
Tvorca	Computer-vision SfM adapted for archaeological recording (popularized with low-cost photogrammetry, c. 2010s)	Ian Hodder & Clive Orton; activity-area approaches elaborated by Robert Whallon and others	Martin Aitken & John Belshé (first archaeological magnetometer survey, 1958)
Typ	Image-based 3D reconstruction pipeline for site and artifact recording	Within-site spatial pipeline for detecting artifact clusters and activity areas	Geophysical prospection pipeline mapping subsurface magnetic anomalies
Pôvodný zdroj	Renfrew, C., & Bahn, P. (2016). Archaeology: Theories, Methods, and Practice (7th ed.). Thames & Hudson. ISBN: 9780500292105	Hodder, I., & Orton, C. (1976). Spatial Analysis in Archaeology. Cambridge University Press. ISBN: 9780521210805	Aspinall, A., Gaffney, C., & Schmidt, A. (2008). Magnetometry for Archaeologists. AltaMira Press. ISBN: 9780759111066
Ďalšie názvy	SfM Photogrammetry, Structure-from-Motion Modeling, Image-Based 3D Recording, Multi-View Photogrammetry	Within-Site Spatial Analysis, Activity-Area Analysis, Artifact Distribution Analysis, Intra-Site Spatial Patterning	Archaeological Magnetometry, Magnetic Gradiometer Survey, Fluxgate Gradiometry, Magnetic Prospection
Príbuzné	2	2	2
Zhrnutie	Structure from Motion (SfM) is a photogrammetric technique that reconstructs three-dimensional models of archaeological subjects from sets of ordinary overlapping photographs. Borrowed from computer vision, it works by automatically finding the same physical points in many images, solving simultaneously for where each photograph was taken and where those points lie in space, and then building a dense point cloud, a meshed surface, and a photo-textured model. Because it needs only a camera and overlapping coverage, SfM has made high-resolution 3D recording of excavation surfaces, standing structures, artifacts, and whole landscapes (often from drones) fast and affordable. Scaled and georeferenced with control points, the resulting models integrate with GIS for measurement, analysis, and archiving, making SfM a core tool of digital field recording as reflected in Renfrew and Bahn and in the GIS workflows described by Conolly and Lake.	Intrasite spatial analysis studies how artifacts and features are distributed within a single site or living floor in order to reconstruct how space was used. Where settlement-pattern analysis treats whole sites as points, intrasite analysis zooms in to the scatter of tools, debris, hearths, and structures across an excavated surface, asking whether particular artifact types cluster together, whether activities were spatially segregated, and where discrete activity areas lay. The toolkit ranges from density and kernel mapping through clustering methods such as k-means to dimensional analysis of variance, the grid-based technique designed to find the scale at which artifacts are patterned. Ian Hodder and Clive Orton's Spatial Analysis in Archaeology set out the statistical foundations, and Conolly and Lake show how GIS-based density and association methods extend them.	Magnetometry survey is a non-invasive geophysical technique that maps buried archaeological features by detecting the tiny variations they produce in the Earth's magnetic field. Many human activities alter the magnetic properties of the ground: burning enhances the magnetism of soil in hearths and kilns, while pits and ditches filled with topsoil are more magnetic than the surrounding subsoil, and stone walls may be less magnetic. A magnetometer carried across a gridded survey area records these faint anomalies, which are processed into a plan-view image revealing the shape and arrangement of subsurface features without digging. First applied archaeologically by Martin Aitken and John Belshé in 1958 and developed into modern fluxgate and caesium gradiometry, magnetometry is among the fastest and most informative prospection methods, as detailed in Aspinall, Gaffney, and Schmidt's standard reference and in general texts such as Renfrew and Bahn.