Comparative analysis of exterior orientation parameters of smartphone images using quaternion-based SPR and PNP algorithms

Namhoon Kim, Ji Sang Lee, Jun Su Bae, Hong Gyoo Sohn

Research output: Contribution to journalArticle

Abstract

The SPR (Single Photo Resection) is widely used as a method of estimating the EOPs (Exterior Orientation parameters) at the time of taking a photograph, but it requires an initial value and has a disadvantage of being sensitive to the initial value. In this study, we introduce quaternion-based single photo resection and PnP (Perspective-n-Point) algorithm that do not require initial values and compare the results. Photos were taken using a general smartphone, and the ground control point acquisition was based on the hybrid MMS (Mobile Mapping System) point cloud data possessed by the researchers. As a result, when the collinear condition based SPR is true value, quaternion-based SPR has higher attitude angle estimation accuracy than PnP algorithm. In case of camera position estimation, both algorithms showed accuracy within 0.8m when compared with ground control points.

Original languageEnglish
Pages (from-to)465-472
Number of pages8
JournalJournal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
Volume37
Issue number6
DOIs
Publication statusPublished - 2019

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

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