Computer Science ›› 2018, Vol. 45 ›› Issue (8): 13-16.doi: 10.11896/j.issn.1002-137X.2018.08.003

• ChinaMM 2017 • Previous Articles     Next Articles

Accuracy Assessment Method of PnP Algorithm in Visual Geo-localization

GUI Yi-nan, LAO Song-yang, KANG Lai, BAI Liang   

  1. Institute of Systems Engineering,National University of Defense Technology,Changsha 410073,China
  • Received:2017-10-24 Online:2018-08-29 Published:2018-08-29

Abstract: In recent years,the rapid growth of demand based on location-based services has led to the development of positioning technology.The vision-based approach utilizes multiple images to restore more accurate camera pose para-meters,but there is no uniform assessment of the performance of its quantitative evaluation.Now the mainstream camerapose assessment method is compared with the GPS data.However,since the photo comes with the GPS tag noise and the conversion between different coordinate systems introduces errors,using GPS tag as ground truth to evaluate the accuracy of the estimated camera pose is not an objective way.In this paper,an objective accuracy evaluation method was proposed.The reference plane was established by the calculated pose.The camera pose obtained by the PnP algorithm was projected onto the reference plane by the same method.

Key words: Accuracy assessment, Camera pose, PnP algorithm, Reference plane, Visual geo-localization

CLC Number: 

  • TP391
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