轴角描述的光束法平差新方法
A Nevel Bundle Adjustment Method Based on the Axis/Angle Expression
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摘要: 建立了一种基于轴角描述的光束法平差新方法。与传统基于欧拉角的光束法平差理论相比,基于轴角法在平差过程免去了大量冗杂的三角函数运算,平差模型系数矩阵和迭代过程全部采用线性运算,结构简洁。试验表明,基于轴角描述的光束法平差解算速度较快,为欧拉角平差方法的两倍左右,并且具有较好的稳定性,为影像区域网平差稳定快速求解提供了一套新方法,对于多定向参数数据快速处理具有一定借鉴价值。Abstract: Thispaperproposedanovelbundleadjustmentmethodbasedontheaxis/angleexpression.ComparedwiththetraditionalbundleadjustmentmethodbasedonEulerangles,axis/angleexpressioncaneliminatetheredundishcomputationoftrigonometricfunctions.Thestructureissimpleforthecoefficientmatrixoftheadjustmentmodelandtheiterativeprocessusinglinearoperation.Experi mentshaveshownthatthebundleadjustmentspeedbasedonaxisanglemethodisabout2timesfasterthanthemethodbasedontheEulerangles,andithastheadvantageofrobustness.Thispaperprov idesanewmethodfortherapidandstabilityofprocessingintheimageareablockadjustmentsolu tion,andthismethodcanbeareferencefortherapidprocessofmulti orientationparameter.