基于手眼模型的三維激光雷達外參數(shù)標定
發(fā)布時間:2018-03-01 05:15
本文關(guān)鍵詞: 無人車 三維激光雷達 點云配準 手眼模型 外參數(shù)標定 出處:《光電工程》2017年08期 論文類型:期刊論文
【摘要】:無人車三維激光雷達與GPS/INS組合導航系統(tǒng)融合使用,需要對兩者之間的相對位姿進行標定。針對車輛運動過程點云畸變的現(xiàn)象,提出了一種單幀點云中激光掃描點坐標修正方法。針對標定問題,建立了標定模型,提出了一種基于ICP算法和手眼標定模型及最小二乘法進行外參數(shù)標定的方法。通過蒙特卡羅仿真實驗,對該方法的有效性和精度進行了仿真和驗證。在實驗室JJUV-6無人車平臺上進行標定試驗,得到兩者之間的三維位姿關(guān)系。對比標定前后三維點云重建效果,點云重疊度接近于配準效果;趹玫哪康,基本滿足二維地圖構(gòu)建和三維環(huán)境重建的需求。
[Abstract]:It is necessary to calibrate the relative position and attitude between the three dimensional lidar and GPS/INS integrated navigation system of unmanned vehicle. In this paper, a method for correcting the coordinates of laser scanning points in a single frame point cloud is proposed. A method of external parameter calibration based on ICP algorithm, hand-eye calibration model and least square method is proposed. The validity and accuracy of the method are simulated and verified. The calibration experiments are carried out on the JJUV-6 unmanned vehicle platform in laboratory, and the three dimensional position and pose relationship between the two methods is obtained. The effect of 3D point cloud reconstruction before and after calibration is compared. The overlap degree of point cloud is close to the registration effect. For the purpose of application, it can basically meet the needs of 2D map construction and 3D environment reconstruction.
【作者單位】: 軍事交通學院;
【基金】:國家自然科學基金重大項目(91220301) 國家重大研發(fā)計劃(2016ffi b0100903)
【分類號】:TN958.98
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1 馮楊;徐慶九;;激光陀螺捷聯(lián)慣導系統(tǒng)的誤差參數(shù)標定方法[J];測控技術(shù);2013年04期
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