Volume 9 Number 5 (May 2014)
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JSW 2014 Vol.9(5): 1281-1287 ISSN: 1796-217X
doi: 10.4304/jsw.9.5.1281-1287

A Novel Stratified Self-calibration Method of Camera Based on Rotation Movement

Canlin Li, Rijian Su
School of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou, China

Abstract—This paper proposes a novel stratified selfcalibration method of camera based on rotation movement. The proposed method firstly captures more than three images of the same scene in the case of constant internal parameters by panning and rotating the camera with small relative rotation angles among the captured images. After feature extraction and matching of captured images, the pixel coordinates of feature point are normalized. Then the stratified self-calibration is performed, following projective, affine and metric calibration. Projective calibration determines the camera projective matrix of every image in the projective reconstruct space. Affine calibration calculates the parameters of infinity reference plane in this space and the homography according to approximately equal relationship among the main diagonal elements of homography, which is inferred by virtue of small relative rotation angles among the captured images and the property of internal reference matrix corresponding to normalized pixel coordinates. Lastly metric calibration acquires internal reference matrix from the calculated homography. The proposed method can be online applied to simply, fast, accurately obtain internal parameters of camera without using the calibration reference with known 3D information. Real data has been used to test the proposed approach, and very good results have been achieved.

Index Terms—camera calibration, self-calibration, rotation movement, stratified calibration

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Cite: Canlin Li, Rijian Su, "A Novel Stratified Self-calibration Method of Camera Based on Rotation Movement," Journal of Software vol. 9, no. 5, pp. 1281-1287, 2014.

General Information

ISSN: 1796-217X (Online)
Frequency:  Bimonthly (Since 2020)
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, Google Scholar, ProQuest, INSPEC(IET), ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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