AR Document Redaction via Projection
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Solution Overview
Problem
Users with access rights to redacted information on physical documents face challenges in accessing this information without the original electronic document, and existing technologies do not effectively provide an interactive experience for viewing redacted content without AR glasses.
Innovation Solution
A method and system using a Projection with Interactive Capture (PIC) device that identifies tags on physical documents, retrieves non-redacted digital copies, authenticates user rights, and projects the non-redacted content onto a surface, allowing users to interact with the redacted information within an augmented reality environment without needing AR glasses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If AR glasses are used to display redacted content, then users can access redacted information without the original electronic document, but user comfort deteriorates
Solution Approach 1:
The patent introduces a projector as an intermediary device between the user and the redacted content. Instead of displaying information directly on the user's retina through AR glasses, the system projects the redacted content onto a physical document surface, allowing users to view the information externally without wearing uncomfortable AR equipment.
Solution Approach 2:
The system creates a visual copy of the redacted content by projecting it onto the physical document. This projection acts as a temporary visual replica that appears only when authorized users view the document, eliminating the need for persistent AR displays and associated discomfort.
2Reliability
If physical documents with redacted portions are used, then security is improved, but access to redacted information for authorized users without electronic document access deteriorates
Solution Approach 1:
The physical document system becomes self-service by embedding machine-readable tags that automatically trigger the projection of redacted content when viewed by authorized users. The document itself provides the mechanism for secure access without requiring external electronic systems or AR glasses.
Solution Approach 2:
The system changes the state of information display based on user authorization parameters. When an authorized user views the document, the projection parameter changes from hidden to visible, allowing dynamic control of information access while maintaining the security benefits of physical documents.
Data Source
AI summary
A method for processing an image of a physical document to show a redacted portion including: identifying a tag associated with the redacted portion and including first user rights; obtaining, using the identified tag, a digital copy of the physical document including a non-redacted form of the redacted portion; receiving, from an external device, second user rights; determining that the second user rights match the first user rights; outputting, based on the determination, information indicating that the non-redacted form of the redacted portion is able to be shown; receiving, in response to the non-redacted form being able to be shown, an instruction to display the non-redacted form; and displaying, based on the instruction and using a projector onto a surface a predetermined distance from the physical document, the non-redacted form of the redacted portion.