Matching and relative orientation of Spherical Panorama Images

Pin Yun Chen, Tsung Che Haung, Yi Hsing Tseng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

People are paying more attention to the use of Spherical Panorama Images (SPIs) for many applications. In order to apply SPIs in photogrammetric application such as land mapping or navigation like frame images do, conjugate points matching and the relative relationship between SPIs are important issues. Through observing the moving pattern of conjugate points, the relative positions and orientation between camera stations may be solved. In this study, images captured by Ladybug 5 system were used for experiment, image features were extracted and matched by Speed-Up Robust Features (SURF) algorithm (Bay, 2008), and the concept of Random Sample Consensus (RANSAC) was applied to improve the accuracy of conjugate points matching. Although RANSAC general model is not well enough to detect the features on SPIs, we proposed a method using the Essential Matrix model to improve this deficiency. Once the conjugate points are found, the relationship between image stations can be explained by Essential matrix, the rotation and translation parts can be extracted up to scale. Similar to that of frame camera, four possible solutions can be found, the angle between two image stations is used to judge the correct solution. The results show that the quantity and quality of corresponding pairs influence the accuracy of the relative positions and orientations between two images. Although the error matching pair can be found and removed by RANSAC, the distortion comes with projection still make trouble for SURF algorithm. A suitable way is apply image matching on the spherical space to improve the quality of corresponding pairs.

Original languageEnglish
Title of host publication37th Asian Conference on Remote Sensing, ACRS 2016
PublisherAsian Association on Remote Sensing
Pages1127-1136
Number of pages10
ISBN (Electronic)9781510834613
Publication statusPublished - 2016 Jan 1
Event37th Asian Conference on Remote Sensing, ACRS 2016 - Colombo, Sri Lanka
Duration: 2016 Oct 172016 Oct 21

Publication series

Name37th Asian Conference on Remote Sensing, ACRS 2016
Volume2

Other

Other37th Asian Conference on Remote Sensing, ACRS 2016
CountrySri Lanka
CityColombo
Period16-10-1716-10-21

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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