李佳田 王聰聰 賈成林 |《測繪學報（英文版）》（JGGS）精選論文

Journal of Geodesy and Geoinformation Science

構建與學術的橋梁 拉近與權威的距離

🔷Title l 題目

A Hybrid Conjugate Gradient Algorithm for Solving Relative Orientation of Big Rotation Angle Stereo Pair

🔷Citation l 引文格式

Jiatian LI,Congcong WANG,Chenglin JIA,Yiru NIU,Yu WANG,Wenjing ZHANG,Huajing WU,Jian LI. A Hybrid Conjugate Gradient Algorithm for Solving Relative Orientation of Big Rotation Angle Stereo Pair[J]. Journal of Geodesy and Geoinformation Science, 2020, 3(2): 62-70. DOI: 10.11947/ j.JGGS.2020.0207.

🔷Abstract l 摘要

The fast convergence without initial value dependence is the key to solving large angle relative orientation. Therefore, a hybrid conjugate gradient algorithm is proposed in this paper. The concrete process is: ① Stochastic hill climbing(SHC) algorithm is used to make a random disturbance to the given initial value of the relative orientation element, and the new value to guarantee the optimization direction is generated. ②In local optimization, a super-linear convergent conjugate gradient method is used to replace the steepest descent method in relative orientation to improve its convergence rate. ③The global convergence condition is that the calculation error is less than the prescribed limit error. The comparison experiment shows that the method proposed in this paper is independent of the initial value, and has higher accuracy and fewer iterations.

🔷Key words l 關鍵詞

relative orientation; big rotation angle; global convergence; stochastic hill climbing; conjugate gradient algorithm

🔷Authors l 作者

Jiatian LI, Congcong WANG, Chenglin JIA, Yiru NIU, Yu WANG, Wenjing ZHANG, Huajing WU, Jian LI.

• Jiatian LI

李佳田，男，1975.03出生，畢業於中國礦業大學(北京)，教授，博士生導師。研究方向為數值最優化方法、機器場景理解算法與伺服原型、Voronoi圖理論與方法，已主持3項國家自然科學基金項目。近年來，專注於視覺測量實踐，已研製具有完全自主智慧財產權的視覺伺服成套裝置，並在多種工業視覺檢測場景取得應用。

Li Jiatian, male, 1975.03, graduated from China University of Mining and Technology (Beijing), professor, Ph.D.supervisor. Committed to numerical optimization methods, machine scene understanding algorithms and servo prototypes, the theory and methods of Voronoi diagram. He has chaired three National Natural Science Foundation projects. In recent years, focused on the practice of visual measurement, has developed a complete set of visual servos with completely independent intellectual property rights and applied in various industrial visual inspection scenarios.

• Congcong WANG

王聰聰，女，昆明理工大學碩士研究生。

Wang Congcong, female, graduate student of Kunming University of Science and Technology.

• Chenglin JIA

賈成林，男，昆明理工大學碩士研究生。

Jia Chenglin, male, graduate student of Kunming University of Science and Technology.

🔷全文摘錄如下

本文節選自JGGS 2020,Volume 3,Issue 2, p62-70.點擊閱讀原文即可下載。

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