In this paper, we investigate how Joint Communication And Sensing (JCAS) can be used to improve the Inertial Measurement Unit (IMU)- based tracking accuracy of eXtended Reality (XR) Head-Mounted Displays (HMDs). Such tracking is used when optical and InfraRed (IR) tracking is lost, and its lack of accuracy can lead to disruption of the user experience. In particular, we analyze the impact of using doppler-based speed estimation to aid the accelerometer-based position estimation, and Angle of Arrival (AoA) estimation to aid the gyroscope-based orientation estimation. Although less accurate than IMUs for short times in fact, the JCAS based methods require one fewer integration step, making the tracking more sustainable over time. Based on the proposed model, we conclude that at least in the case of the position estimate, introducing JCAS can make long lasting optical/IR tracking losses more sustainable.
翻译:在本文中,我们调查如何利用联合通信和遥感(JCAS)来改进以惯性计量股(IMU)为基础,对电子氧化现实(XR)主流显示(HMD)进行跟踪的准确性。当光学和红外线(IR)跟踪丢失时,即使用这种跟踪,其缺乏准确性会导致用户经验的中断。特别是,我们分析了使用基于多普勒的速度估计的影响,以帮助基于加速计的定位估计,以及利用Agle Ariveval(AoA)进行估算,以帮助基于陀空镜的定向估计。虽然基于JCAS的方法在短时期内比IMU的准确性要低一点,但这种整合方法需要更长的整合步骤,使跟踪在一段时间内更具有可持续性。我们根据拟议的模型得出结论,至少就定位估计而言,采用JCAS可以使长期的光学/IR跟踪损失更加可持续。