Abstract In this work, we developed a wearable system using a commercial stereoscopic head-mounted display. We compared depth first-then contour (df-tc) and contour first-then depth (cf-td) algorithms in terms of images processed per second rate versus the window size and sweep values. Likewise, we performed a comparison of several edge detection methods in the same terms. The developed technical aid was clinically tested. We evaluated the preferred walking speed and the walking speed with and without the devices during three test circuits. For comparative analysis of anxiety levels, we recorded patients’ heart rate data before, during and after the test. The system has proven its potential for enhancing the patients’ mobility and reducing the level of anxiety related to movement activities.

中文翻译：

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基于立体图像和深度算法的视障患者头戴式显示系统的开发与评估

摘要 在这项工作中，我们开发了一种使用商用立体头戴式显示器的可穿戴系统。我们在每秒处理图像的速率与窗口大小和扫描值方面比较了深度先行轮廓 (df-tc) 和轮廓先行深度 (cf-td) 算法。同样，我们以相同的术语对几种边缘检测方法进行了比较。开发的技术援助经过临床测试。我们在三个测试电路中评估了首选步行速度和有和没有设备的步行速度。为了比较分析焦虑水平，我们记录了患者在测试前、测试中和测试后的心率数据。该系统已证明其具有增强患者活动能力和降低与运动活动相关的焦虑程度的潜力。