2021 IEEE International Conference on Image Processing

19-22 September 2021 • Anchorage, Alaska, USA

Imaging Without Borders

2021 IEEE International Conference on Image Processing

19-22 September 2021 • Anchorage, Alaska, USA

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Paper Detail

Paper IDARS-7.12
Paper Title EXTRINSIC CAMERA CALIBRATION BY USING A NONUNIFORM SUBDIVISION ACCUMULATOR AND ORTHOGONAL VANISHING POINTS
Authors Zhifeng Chen, Sining Liu, Ente Guo, Jingjing Yang, Fuzhou University, China
SessionARS-7: Image and Video Interpretation and Understanding 2
LocationArea H
Session Time:Wednesday, 22 September, 08:00 - 09:30
Presentation Time:Wednesday, 22 September, 08:00 - 09:30
Presentation Poster
Topic Image and Video Analysis, Synthesis, and Retrieval: Image & Video Interpretation and Understanding
IEEE Xplore Open Preview  Click here to view in IEEE Xplore
Abstract In this study, we propose an accurate and efficient algorithm for extrinsic camera calibration that utilizes an accumulator on the sphere and the orthogonal constraint of vanishing points. We develop a nonuniform subdivision method to create an accurate accumulator for validating rotation matrix hypotheses. In contrast with the multiline method for generating rotation matrix hypotheses, we utilize the parallelism and orthogonality of two lines to develop hypotheses in the spherical coordinate. Moreover, we expand our method to the scene that lacks orthogonal information. Our method achieves 99.36% precision and 99.92% recall on the York Urban Database, and it is successfully applied to real-world scenes.