Virtual reality is a powerful interaction mechanism that holds the promise of engaging users, not only for entertainment, but also for social and environmental purposes. In this paper we present PeakLensVR, a virtual reality mobile application that enables users to capture panoramic mountain images with their mobile devices and later visualize such images, enriched with metadata about the peaks visible from the capture point, with a low-end VR device. The application exploits a multi-stage data processing pipeline, which comprises the following steps: (1) the acquisition of a sequence of frames with the mobile phone camera and their annotation with sensor readings captured during the shooting session; (2) the creation of a panoramic image from the acquired frames, with state-of-the art stitching algorithms; (3) the registration of the panoramic image to the mountain skyline in view, by comparing the image skyline with a virtual profile extracted from the NASA SRTM Digital Elevation Model of the Earth; (4) the enrichment of the registered panoramic image with markers and metadata (name, altitude, etc.) of the peaks in view, by querying the OpenStreetMap GIS.

中文翻译：

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虚拟现实应用程序可增强全景山景图像

虚拟现实是一种强大的交互机制，它不仅可以吸引用户，还可以吸引娱乐用户，也可以用于社交和环境目的。在本文中，我们介绍了PeakLensVR，这是一个虚拟现实移动应用程序，它使用户能够使用其移动设备捕获全景山峰图像，然后使用低端VR设备将这些图像可视化，并通过从捕获点看到的有关峰值的元数据进行丰富。该应用程序利用了一个多阶段的数据处理管道，该管道包括以下步骤：（1）使用移动电话摄像机获取一系列帧，并在拍摄过程中捕获传感器读数来注释它们；（2）使用最先进的拼接算法从获取的帧中创建全景图像；（3）通过将影像的天际线与从NASA SRTM地球数字高程模型中提取的虚拟轮廓进行比较，将全景影像对准可见的山地天际线；（4）通过查询OpenStreetMap GIS，使用查看的峰的标记和元数据（名称，高度等）来丰富已注册的全景图像。