Polyhedral 3D Camera Index Map for VR Storage Reduction
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Solution Overview
Problem
Existing 3D cameras used in virtual reality devices face challenges in efficiently capturing and storing images as they move, requiring significant storage space to account for every positional change, which can lead to inefficiencies in image processing and display.
Innovation Solution
A 3D camera with a polyhedron shape, equipped with 2D cameras at each vertex, generates and stores an index distribution map to identify unique positions, capturing images only when the camera is at a non-overlapping location, and transmits this information to the VR device for generating a complex view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a 3D camera captures and stores an image every time a user moves, then the completeness of the captured 3D environment is improved, but the storage space requirement increases significantly
Solution Approach 1:
The patent divides the continuous space into discrete cubic regions with side length L. The 3D camera only captures images when it enters a new cubic region, rather than continuously capturing at every position. This segmentation approach reduces the number of captured images from potentially infinite to a manageable set corresponding to the number of cubic regions in the environment.
Solution Approach 2:
The patent implements selective capture by comparing the current cubic region with previously captured regions. Images are captured only when necessary (when entering a new region), rather than capturing at every possible position. This partial action approach avoids redundant captures while ensuring complete coverage of all unique spatial locations.
2Stability of the object's composition
If a 3D camera captures images at every position, then the continuity of the captured environment is improved, but the processing efficiency decreases due to large data volume
Solution Approach 1:
By segmenting space into discrete cubic regions, the patent reduces the total number of images that need to be processed. Instead of processing continuous stream of images from every position movement, the system only processes images corresponding to entries into new cubic regions, significantly reducing computational load while maintaining environmental continuity.
Solution Approach 2:
The patent extracts only the essential capture events (entering new cubic regions) from the continuous movement data. By taking out only these critical moments for image capture, the system maintains the necessary environmental continuity information while eliminating redundant data that would burden processing efficiency.
3Area of stationary object
If multiple cameras are arranged at each vertex of a polyhedron, then the coverage of the captured scene is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple 2D camera views at each polyhedron vertex into a single synthesized 3D view. By combining the information from multiple cameras observing the same cubic region from different angles, the system achieves comprehensive scene coverage while managing device complexity through integrated processing rather than treating each camera as a separate complex unit.
Solution Approach 2:
The polyhedron-shaped 3D camera with multiple cameras at vertices serves multiple functions simultaneously: each camera captures different perspectives, the geometric arrangement provides inherent spatial reference, and the configuration enables both wide coverage and structured data organization. This multi-functionality approach maximizes scene coverage while the regular polyhedral structure keeps the overall system design manageable.
Data Source
AI summary
Provided is a three-dimensional (3D) camera for capturing an image for providing virtual reality (VR), the 3D camera including a plurality of cameras; and a position sensor configured to track a position of the 3D camera, wherein the plurality of cameras are arranged at each vertex of a polyhedron, and at least three cameras are arranged at each vertex of the polyhedron.