Spatially Aware Video Playback in Extended Reality
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Solution Overview
Problem
Extended reality environments face challenges in presenting videos in a way that enhances realism while avoiding discomfort caused by changing camera viewpoints during capture, leading to motion-related issues for viewers.
Innovation Solution
The solution involves spatially aware playback, where frames of a video are presented in an extended reality environment based on scene position information, allowing frames to be displayed at locations corresponding to their capture orientation, and generating contextual content to enhance realism and user orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If video frames are presented in a fixed location in extended reality environment, then playback is simple and device complexity is low, but realism and user immersion are reduced due to changing camera viewpoints
Solution Approach 1:
The video is segmented into individual frames, each with associated scene position information. Each frame is independently positioned in the extended reality environment based on its capture orientation, allowing realistic spatial representation while maintaining manageable processing through frame-by-frame handling
Solution Approach 2:
The system transitions from 2D video frames to 3D spatial positioning in the extended reality environment. Frames are positioned along a spherical path defined by inclination and azimuth angles, adding spatial dimensionality that enhances realism while using the existing video frame structure
2Measurement precision
If frames are positioned according to scene position information, then orientation and realism are improved, but processing complexity and computational requirements increase
Solution Approach 1:
Scene position information including inclination and azimuth angles is captured and stored during video recording. This preliminary action during capture eliminates the need for complex real-time processing during playback, as the positioning data is already available for each frame
Solution Approach 2:
The system uses the scene position information as a copy of the original capture orientation data. This copy allows the video frames to be accurately repositioned in the extended reality environment without requiring complex calculations or sensors during playback
3Loss of information
If contextual content is generated from multiple frames, then user orientation and immersion are enhanced, but processing time and computational resources increase
Solution Approach 1:
Contextual content is generated selectively based on the user's current field of view and the spatial position of frames. Only relevant contextual frames are processed and presented, providing necessary contextual information while avoiding unnecessary processing of distant or irrelevant frames
Data Source
AI summary
Videos are presented in an extended reality environment in a spatially aware manner such that a position of each frame of the video in the extended reality environment is based on one or more of a position, orientation, and field of view of a camera that captured the video.