Spatial Video Conversion for Clear Glasses-Free SBS 3D
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Solution Overview
Problem
Existing spatial videos captured by iPhones are not suitable for direct transformation into glasses-free SBS stereoscopic format due to focus issues, resulting in blurred foreground or background, and require expensive head-mounted displays like Apple Vision Pro for viewing.
Innovation Solution
Utilizing an AI device with an AI algorithm module to analyze and adjust spatial video files, embedding position information to separately focus foreground and background, then synthesizing images into an SBS stereoscopic format compatible with a glasses-free stereoscopic imaging film.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If spatial video is directly transformed into glasses-free SBS stereoscopic format, then viewing accessibility is improved, but image clarity deteriorates due to focus issues
Solution Approach 1:
The patent applies preliminary action by performing AI-based focus adjustment and depth map generation before the final image synthesis. The system pre-processes the spatial video data to identify foreground and background regions, adjusts their respective focus states, and prepares optimized image data before combining them into the final SBS stereoscopic format. This ensures that both foreground and background maintain appropriate focus in the final output.
Solution Approach 2:
The patent implements local quality by applying different focus characteristics to different regions of the image. The AI algorithm identifies specific foreground objects and background areas, then applies selective focus adjustment - keeping foreground sharp while allowing background to have natural depth blur, or vice versa depending on the desired effect. This region-specific processing maintains image clarity throughout the transformed video.
2Reliability
If head-mounted display is used to view spatial video, then three-dimensional visual effect is improved, but device cost and weight increase
Solution Approach 1:
The patent uses copying by creating a transformed version of the spatial video that can be displayed on regular screens. Instead of requiring the original expensive head-mounted display hardware, the system generates a copied SBS stereoscopic format that replicates the three-dimensional visual effect using only a lenticular film and standard display equipment. This provides an accessible alternative that copies the essential 3D experience without the hardware complexity.
Solution Approach 2:
The patent replaces expensive, complex head-mounted displays with a simple, inexpensive solution using only a lenticular film overlay on a regular screen. The lenticular film is a low-cost component that can be easily attached and removed, providing the same three-dimensional viewing experience without the high device cost, weight, and complexity of dedicated VR/AR headsets.
3Loss of information
If two cameras capture spatial video, then depth information is improved, but focus precision deteriorates when objects are close to one camera
Solution Approach 1:
The patent introduces an AI algorithm as an intermediary between the two camera inputs and the final output. This intermediary analyzes depth information from both cameras, identifies regions that are out of focus due to proximity issues, and applies computational focus adjustment. The AI mediator reconciles the focus discrepancies between the two camera views to produce a final image with improved overall focus precision while preserving the depth information captured by the dual-camera system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables clear 3D visual effects on regular displays without glasses, overcoming focus issues and eliminating the need for expensive head-mounted displays, while maintaining image clarity.
Implementation Method 1
The glasses-free stereoscopic imaging film is a lenticular optical film... Through the beam-splitting effect of a cylindrical lens, two images with parallax information are projected to the left and right eyes of the viewer respectively.
Data Source
AI summary
A method for transforming a spatial video file into a glasses-free SBS (side-by-side) stereoscopic image format is disclosed. A spatial video file has a first image and a second image. The first image and the second image are embedded with position information of X-axis, Y-axis and Z-axis corresponding to the respective images. Through an AI (artificial intelligence) device to separately focus the foreground and background of each image according to the position information of the first image and the second image. After the first image and the second image are clear, the first image and the second image are synthesized into an SBS stereoscopic image format that is mapped with a glasses-free stereoscopic imaging film.
