Life: A Flexible Testbed for Light Field Evaluation

Abstract

Recording and imaging the 3D world has led to the use of light fields. Capturing, distributing and presenting light field data is challenging, and requires an evaluation platform. We define a framework for real-time processing, and present the design and implementation of a light field evaluation system. In order to serve as a testbed, the system is designed to be flexible, scalable, and able to model various end-to-end light field systems. This flexibility is achieved by encapsulating processes and devices in discrete framework systems. The modular capture system supports multiple camera types, general-purpose data processing, and streaming to network interfaces. The cloud system allows for parallel transcoding and distribution of streams. The presentation system encapsulates rendering and display specifics. The real-time ability was tested in a latency measurement; the capture and presentation systems process and stream frames within a 40 ms limit.

Joint effects of depth-aiding augmentations and viewing positions on the quality of experience in augmented telepresence

“…However, the isolation from seeing the real world leads to tighter constraints on the display rendering latency in order to prevent nausea and simulator sickness. The experiment system was built on our multi-camera real-time streaming system [74], and connected to a 2nd generation HTC Vive Pro HMD. This VR display was chosen because previous studies [75][76][77] showed a slight benefit to the HTC Vive's tracking and resolution compared to other headsets, and as a consumer product suited for immersive videogames, the HTC Vive Pro has acceptable levels of rendering delay.…”

View Position Impact on QoE in an Immersive Telepresence System for Remote Operation

“…The experiment setup, shown in Fig. 3, was based on a multi-camera real-time streaming system similar to [16], connected to an HTC Vive Pro HMD. This HMD was chosen due to its higher resolution and more accurate tracking, advantage of which was shown in [17].…”