[1] Wang S, Xu X. 3D reconstruction based on horopter[J]. Acta Optica Sinica, 37, 0515004(2017).

[2] Wan D R, Zhou J. Stereo vision using two PTZ cameras[J]. Computer Vision and Image Understanding, 112, 184-194(2008).

[3] Oh J, Sohn K. Semiautomatic zoom lens calibration based on the camera's rotation[J]. Journal of Electronic Imaging, 20, 023006(2011). http://spie.org/Publications/Journal/10.1117/1.3574403

[4] Arfaoui A, Thibault S, Desaulniers P. Calibration ofzoom lens with virtual optical pattern[J]. Optical Engineering, 54, 054107(2015). http://spie.org/x648.xml?product_id=2202223

[5] Frosio I, Turrini C, Alzati A. Camera re-calibration after zooming based on sets of conics[J]. Visual Computer, 32, 663-674(2016). http://dl.acm.org/citation.cfm?id=2932371

[6] Wang Z, Mills J, Xiao W et al. A flexible, generic photogrammetric approach to zoom lens calibration[J]. Remote Sensing, 9, 244(2017). http://adsabs.harvard.edu/abs/2017RemS....9..244W

[7] Alvarez L, Gómez L, Henríquez P. Zoom dependent lens distortion mathematical models[J]. Journal of Mathematical Imaging and Vision, 44, 480-490(2012). http://link.springer.com/article/10.1007/s10851-012-0339-x

[8] Dou S Y, Nagahashi H. An intelligent binocular vision system with zoom lens for 3D scene reconstruction[J]. International Journal of Computer and Electrical Engineering, 8, 304-318(2016). http://www.researchgate.net/publication/316703162_An_Intelligent_Binocular_Vision_System_with_Zoom_Lens_for_3D_Scene_Reconstruction

[9] Xian T, Park S Y, Subbarao M. New dynamic zoom calibration technique for a stereo-vision based multi-view 3D modeling system[J]. Proceedings of SPIE, 5606, 106-116(2004). http://spie.org/x648.html?product_id=570459

[10] Liu P C, Willis A, Sui Y F. Stereoscopic 3D reconstruction using motorized zoom lenses within an embedded system[J]. Proceedings of SPIE, 7251, 72510W(2009). http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1335098

[11] Rodríguez J A M. Three-dimensional recovering based on variable focal length via Bezier networks[J]. The Imaging Science Journal, 63, 145-159(2015). http://www.tandfonline.com/doi/abs/10.1179/1743131X14Y.0000000089

[12] Zhang Z. A flexible new technique for camera calibration[J]. IEEE Transactions on Pattern Analysis and Machine Intelligence, 22, 1330-1334(2000). http://www.emeraldinsight.com/servlet/linkout?suffix=b17&dbid=16&doi=10.1108%2F01445150510610917&key=10.1109%2F34.888718

[13] Zhang X B, Lu H, Fang Y C et al. An automatic calibration method for outdoor PTZ cameras and its applications[J]. Robot, 35, 385-393(2013).

[14] Zheng S Y, Wang Z, Huang R Y. Zoom lens calibration with zoom- and focus-related intrinsic parameters applied to bundle adjustment[J]. ISPRS Journal of Photogrammetry and Remote Sensing, 102, 62-72(2015). http://www.sciencedirect.com/science/article/pii/S0924271615000222

[15] Wu B, Hu H, Zhu Q et al. A flexible method for zoom lens calibration and modeling using a planar checkerboard[J]. Photogrammetric Engineering & Remote Sensing, 79, 555-571(2013). http://www.ingentaconnect.com/content/asprs/pers/2013/00000079/00000006/art00004

[16] Cheng M J, Shen X J, Xiao J J et al. Three-dimensional calibration of fisheye camera based on laser scanner[J]. Acta Optica Sinica, 37, 0315001(2017).

[17] Kim M Y, Ayaz S M, Park J et al. Adaptive 3D sensing system based on variable magnification using stereo vision and structured light[J]. Optics and Lasers in Engineering, 55, 113-127(2014). http://www.sciencedirect.com/science/article/pii/S0143816613003199

[18] Ueshiba T, Tomita F. Plane-based calibration algorithm formulti-camera systems via factorization of homography matrices[C]. IEEE International Conference on Computer Vision, 2, 966-973(2003).

[19] Zou P P, Zhang Z L, Wang P et al. Binocular camera calibration based on collinear vector and plane homography[J]. Acta Optica Sinica, 37, 1115006(2017).

[20] Shi Y Q. Positioning and measurement techniques with zoom tracking cameras[D]. Hefei: Hefei University of Technology(2012).

[21] Guo Q D, Quan Y M, Yu G P et al. Improved binocular calibration based on ICP algorithm[J]. Acta Optica Sinica, 36, 1215003(2016).

[22] Yang J H, Liu W, Liu Y et al. Calibration of binocular vision measurement system[J]. Optics and Precision Engineering, 24, 300-308(2016).

[23] Cui H H, Liao W H, Cheng X S et al. Robust pattern locating algorithm for calibration of vision sensor[J]. Transducer and Microsystem Technologies, 28, 62-65, 69(2009).