0000000000289524

AUTHOR

Ana Elena Seguí

showing 2 related works from this author

Range-based versus automated markerless image-based techniques for rock art documentation

2014

Nowadays there is a huge proliferation of fully automatic image-based solutions producing either three-dimensional (3D) point clouds or 3D models. However, the reliability of the output is not usually reported and clarified. This paper presents a comparison of the 3D modelling results achieved on two rock art shelters at separate archaeological sites using a high-resolution digital camera. The 3D point clouds were produced using automatic image-based photogrammetric and computer vision software running either locally (FOTOGIFLE and VisualSFM) or through a webbased reconstruction service (Autodesk 123D Catch). The first two automatic approaches are compared with a manual bundle block adjustm…

Terrestrial laser scanningComputer sciencemedia_common.quotation_subjectcomputer.software_genreDocumentationExcellenceEarth and Planetary Sciences (miscellaneous)Rock artComputers in Earth SciencesEngineering (miscellaneous)media_commonMultimediaData qualityTerrestrial laser scanningComputer Science ApplicationsOrtho-imagePoint cloudINGENIERIA CARTOGRAFICA GEODESIA Y FOTOGRAMETRIAChristian ministryRock artResolutionCartographycomputerImage basedRange (computer programming)Accuracy and precision
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Automatic orientation and 3D modelling from markerless rock art imagery

2013

This paper investigates the use of two detectors and descriptors on image pyramids for automatic image orientation and generation of 3D models. The detectors and descriptors replace manual measurements and are used to detect, extract and match features across multiple imagery. The Scale-Invariant Feature Transform (SIFT) and the Speeded Up Robust Features (SURF) will be assessed based on speed, number of features, matched features, and precision in image and object space depending on the adopted hierarchical matching scheme. The influence of applying in addition Area Based Matching (ABM) with normalised cross-correlation (NCC) and least squares matching (LSM) is also investigated. The pipel…

Terrestrial laser scanningClose range imageryMatching (statistics)Computer scienceComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONScale-invariant feature transformBundle adjustmentAutomationOrientationBundle adjustmentMatchingComputer visionComputers in Earth SciencesEngineering (miscellaneous)Block (data storage)Ground truthOrientation (computer vision)business.industryPipeline (software)Atomic and Molecular Physics and OpticsComputer Science ApplicationsPhotogrammetryINGENIERIA CARTOGRAFICA GEODESIA Y FOTOGRAMETRIAArtificial intelligencebusinessISPRS Journal of Photogrammetry and Remote Sensing
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