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首页> 外文会议>Electrical amp; Electronics Engineering (EEESYM), 2012 IEEE Symposium on >Measurement based on machine vision for spin test in vertical wind tunnel
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Measurement based on machine vision for spin test in vertical wind tunnel

机译：基于机器视觉的垂直风洞自旋测试测量

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摘要

Spin is a kind of complicated, dangerous and abnormal flight status when airplane stalls in the air. Spin and recovery research is usually done in vertical wind tunnel test. This method has the advantages of low-cost, short cycle and so on. For the measurement of spin attitude angles, a set of stereo vision measurement system using two CCD cameras and other equipments is built. By the research of coordinate system transformation and digital image processing algorithms, 3D parameters of man-made markers of the model surface are obtained, and the measurement of spin attitude angles is realized. The test results show that the technology has the features of non-contact, high recognition rate and flexibility, the measurement accuracy of attitude angles reaches 0.1 °.
机译：飞机在空中失速时，旋转是一种复杂，危险和异常的飞行状态。旋转和恢复研究通常在垂直风洞测试中进行。该方法具有成本低，周期短等优点。为了测量旋转姿态角，建立了一套使用两个CCD摄像机和其他设备的立体视觉测量系统。通过对坐标系变换和数字图像处理算法的研究，获得了模型表面人工标记的3D参数，并实现了旋转姿态角的测量。测试结果表明，该技术具有非接触，识别率高，灵活性强的特点，姿态角的测量精度达到0.1°。

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