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In-flight evaluation of an optical head motion tracker III

机译：光学头运动跟踪器III的飞行中评估

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We have presented a new approach for Optical HMT (Head Motion Tracker) past years [1]-[4]. In existing Magnetic HMT, it is inevitable to conduct pre-mapping in order to obtain sufficient accuracy because of magnetic field's distortion caused by metallic material around HMT, such as cockpit and helmet. Optical HMT is commonly known as mapping-free tracker; however, it has some disadvantages on accuracy, stability against sunlight conditions, in terms of comparison with Magnetic HMT. We had succeeded to develop new HMT system, which can overcome particular disadvantages by integration with two area cameras, optical markers, image processing techniques and inertial sensors with simple algorithm in laboratory level environment (2008). We have also reported some experimental results conducted in flight test, which proved good accuracy even in the sunlight condition (2009). We have also reported some experimental results conducted in flight test, which proved good performance even in the night flight (2010). Shimadzu Corp. and JAXA (Japan Aerospace Exploration Agency) are conducting joint research named SAVERH (Situation Awareness and Visual Enhancer for Rescue Helicopter) [2]-[4] that aims at inventing method of presenting suitable information to the pilot to support search and rescue missions by helicopters. The HMT system has been evaluated through a series of flight evaluation in SAVERH and demonstrated the operation concept. In this report, we show result of the final evaluation of the HMD system through 12 flights including night flight. Also, those evaluation was done by integrated HMT system that was newly developed for the tests in this year.
机译：过去几年[1]-[4]，我们提出了一种用于光学HMT（头部运动跟踪器）的新方法。在现有的电磁HMT中，由于驾驶舱和头盔等HMT周围的金属材料引起的磁场变形，不可避免地要进行预映射以获得足够的精度。光学HMT通常称为免映射跟踪器；然而，与磁性HMT相比，它在准确性，对日光条件的稳定性方面有一些缺点。我们已经成功开发了新的HMT系统，该系统可以通过在实验室级环境中与两个区域相机，光学标记器，图像处理技术和惯性传感器集成在一起，并以简单的算法来克服特定的缺点（2008年）。我们还报告了在飞行测试中进行的一些实验结果，即使在阳光条件下（2009年），也证明了其准确性。我们还报告了在飞行测试中进行的一些实验结果，即使在夜间飞行（2010年）中也证明了良好的性能。岛津制作所和JAXA（日本航空航天局）正在进行名为SAVERH（救援直升机的情境感知和视觉增强器）[2]-[4]的联合研究，旨在发明向飞行员提供合适信息以支持搜索和搜索的方法。直升机营救任务。 HMT系统已通过SAVERH的一系列飞行评估进行了评估，并展示了其操作概念。在此报告中，我们显示了通过12个航班（包括夜间航班）对HMD系统进行最终评估的结果。此外，这些评估是通过今年为测试新开发的集成HMT系统完成的。

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