AR Content Authoring via Spatial Anchors and Blockchain Security
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Solution Overview
Problem
Conventional augmented reality (AR) systems face limitations in authoring persistent and accurate 3D content, particularly in markerless AR, and raise privacy and security concerns with spatial 3D mapping, especially in managing digital-spatial property ownership.
Innovation Solution
A system that enables remote and local content authoring using a 3D point cloud environment, integrating a game engine with a cloud-server system, employing blockchain-encrypted smart contracts for security, and utilizing GPS, SLAM, and computer vision for accurate localization and content management, while dividing the environment into tiles for optimized data handling and user-generated content filtering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spatial 3D mapping is used to create persistent AR environments, then content placement accuracy and persistence are improved, but user privacy and security risks increase
Solution Approach 1:
The system segments the AR environment into discrete spatial anchors that can be independently managed and secured. Each spatial anchor represents a localized reference point that can be authenticated and controlled individually, allowing the system to maintain content placement accuracy while limiting the scope of privacy and security exposure to specific locations rather than the entire mapped environment.
Solution Approach 2:
The patent introduces an intermediary authentication layer between the spatial mapping system and user data. This intermediary mechanism verifies and manages access to spatial anchors, acting as a mediator that enables persistent content placement while protecting user privacy and security by controlling what information is exposed and to whom.
2Ease of operation
If markerless AR is used for content authoring, then ease of operation is improved, but manufacturing precision of 3D content placement deteriorates
Solution Approach 1:
The system implements self-service spatial anchoring where the AR environment automatically generates and manages spatial anchors without requiring manual markers or complex setup procedures. This self-service mechanism enables ease of operation by eliminating the need for manual marker placement while maintaining precision through automated feature detection and spatial reference generation.
Solution Approach 2:
The patent employs parameter changes in the spatial reference system to maintain precision without markers. By dynamically adjusting parameters such as spatial anchor density, reference point selection criteria, and coordinate transformation parameters, the system achieves accurate 3D content placement while maintaining the simplicity of markerless operation.
3Duration of action of stationary object
If spatial anchors are shared between users via mutual server, then persistence and integration are improved, but data privacy and security concerns worsen
Solution Approach 1:
The system performs preliminary authentication and authorization actions before spatial anchors are shared between users. By pre-establishing trust relationships and access permissions, the system enables persistent spatial anchor sharing while protecting data privacy by ensuring that only authorized users can access and interact with each other's spatial references.
Solution Approach 2:
Instead of sharing actual user spatial data, the system creates and shares anonymized copies or references to spatial anchors. This copying mechanism allows multiple users to access the same persistent spatial references while protecting original user data and privacy, as the shared copies contain only the necessary geometric information without exposing sensitive user information.
Data Source
AI summary
Frontend and backend systems and processes. Technical foundations on which an Augmented Reality (AR) platform, such as an AR Social Media Platform. Systems and methods are used to construct and manage an AR Cloud backend and frontend environment facilitation: persistent 3-Dimensional and 2-Dimensional geo-located content that can be created, viewed, changed, and interacted with by users in the same or different sessions; ephemeral content; local creation and posting of content; remote creation and posting of content; remote visualization, altering, and placing content on a 3D map; filtering and management of content in the camera view based on a visibility layer/similar theme and content priority based on preferences, categorization, and ownership; automated creation and posting; lighting of content and digital environments; linking of point clouds with real-world geo-coordinates for accurate map construction; and the security of property and content rights and ownership via smart contracts on a blockchain.