In the experiment, we reconstruct 3-d position of the target by linear self-calibration technology based on active vision and the matching method based on characteristic points.
通过实验，利用基于主动视觉的线性自标定技术，完成了对相机的自标定，并利用基于特征点的立体匹配方法，完成了点的三维重构。
The places of resonance points can be adjusted, and the radiated characteristic of transducer with single matching layers was improved by choosing the length of matching layer reasonably.
在单层阻抗匹配层的情况下，合理地选择匹配层的厚度可以调整其谐振点之间的位置，从而改善换能器的辐射特性。
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