由于结构场景是由大量平面构成的，存在大量的平行性、正交性约束，因此该方法主要应用于结构场景的三维重构。
The main application is to structured scene, mostly planar structures where there are plentiful constraints to be had from parallelism and orthogonality.
其次，提出了综合利用空间平行线约束和相机主点位置约束的线性迭代自定标方法，提高了相机自定标的鲁棒性。
Secondly, a new method with scene constraint and the constraint of principal point for camera self-calibration based on the linear iteration is presented.
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