Immersive Video Scanner Array for Interactive Parallax
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Solution Overview
Problem
Existing immersive video technologies fail to account for users' head translation movements, leading to a lack of interactive parallax, which reduces immersion quality and increases the risk of 'Cyber-Sickness'.
Innovation Solution
A method for collecting image data that determines a zone of viewpoints from which a user can move their head, using multiple scanners placed at source points to scan the space in azimuth and elevation angles, capturing interactive parallax data and storing it in a matrix format, allowing for real-time rendering of immersive videos with improved image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If immersive video is pre-recorded or pre-calculated to achieve high image quality, then image quality is improved, but the system cannot account for user head translation movements and provide interactive parallax
Solution Approach 1:
The patent pre-calculates and stores multiple viewpoints in advance within a viewpoint volume, allowing the system to provide interactive parallax effects without real-time computation. By preparing viewpoint data beforehand at different positions within the viewpoint volume, the system can respond to user head movements with pre-rendered parallax information, combining high image quality with adaptability to translation movements.
2Adaptability or versatility
If multiple scanners are used to capture viewpoint data for interactive parallax, then adaptability to head movements is improved, but device complexity increases
Solution Approach 1:
The patent divides the viewpoint volume into multiple discrete viewpoints and uses multiple scanners positioned at different source points within the viewpoint volume. Each scanner captures data for specific viewpoints, and the collection is synthesized to provide comprehensive head movement coverage. This segmentation approach manages device complexity by distributing the capture task across multiple simpler scanner positions rather than requiring a single complex system.
3Adaptability or versatility
If the viewpoint volume is enlarged to accommodate larger head movement latitude, then adaptability is improved, but the quantity of image data to be stored increases
Solution Approach 1:
The patent implements variable density sampling within the viewpoint volume, where viewpoints closer to the center (rest position) have higher density and viewpoints at the periphery have lower density. This local quality approach allocates more data resources to the most commonly used viewing positions while reducing storage requirements for extreme positions, thereby managing data volume while maintaining adaptability to natural head movement patterns.
Data Source
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Figure 3
Figure 4a~4b
AI summary
A method for collecting image data for producing immersive video comprises determining a zone of points of view and setting up a set of source points located at the ends of the zone of points of view, as well as placing a scanner of a first set of scanners at each of said source points for sweeping step by step a space by means of sweeping beams, following a succession of azimuthal angles and elevation angles in a range predetermined by the zone of points of view, and determining on the basis of reflected sweeping beams the image data formed by a distance between a point touched by a beam and the scanner which produced the scanning beam in question, and by a colour parameter of said touched point, and storing them in a memory.