Watermark Metadata Access for Secure Multimedia Database Population
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Solution Overview
Problem
Metadata associated with multimedia content is often lost or impaired during format conversion, transcoding, and transmission, leading to inefficiencies and security concerns in accessing and managing interactive services.
Innovation Solution
A system utilizing watermarking techniques to embed metadata within multimedia content, enabling secure and efficient access to metadata by extracting watermarks at the receiver device, and using standardized protocols for querying remote servers to populate metadata databases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metadata is interleaved, prepended or appended to multimedia content, then metadata is transmitted together with content, but bandwidth is occupied and metadata can be lost during format conversion and transmission
Solution Approach 1:
The patent extracts metadata from the traditional transmission stream and embeds it as watermarks within the multimedia content itself. This separates metadata from the main content stream, allowing independent extraction and processing while reducing bandwidth requirements for metadata transmission.
Solution Approach 2:
The watermarking technology acts as an intermediary mechanism that carries metadata within the content without occupying additional transmission bandwidth. The watermark serves as a mediator between content delivery and metadata access, enabling both to coexist efficiently.
2Adaptability or versatility
If metadata is transmitted with content, then metadata is available for interactive services, but security concerns arise regarding unauthorized access
Solution Approach 1:
The patent applies different security qualities to different parts of the system. Watermark extraction and metadata access are controlled at the receiver level with authentication mechanisms, while the content itself can be freely distributed. This localized security approach enables versatile access while preventing unauthorized metadata manipulation.
Solution Approach 2:
The system implements feedback mechanisms where extracted watermarks are verified against authentication credentials before metadata is made available. This feedback loop ensures that only authorized users can access interactive services while maintaining system-wide adaptability.
3Ease of operation
If watermark extraction is performed at receiver device, then secure and efficient metadata access is enabled, but device complexity increases
Solution Approach 1:
The patent performs watermark embedding as a preliminary action during content production or distribution. This shifts complexity from the receiver device to the content preparation stage, allowing simple receivers to extract watermarks without requiring complex processing capabilities.
Solution Approach 2:
The system replaces complex mechanical or procedural metadata attachment methods with watermarking technology. This substitution simplifies the receiver's task to straightforward watermark extraction and interpretation, reducing operational complexity while maintaining ease of metadata access.
Data Source
AI summary
The disclosed technology relates to methods, devices, systems and computer program products that facilitate access to metadata associated with a content. In one example, a method is described that includes receiving a multimedia content at a receiver device, extracting a watermark message from a first segment of the multimedia content, using at least a portion of the first watermark message to obtain additional information regarding the first segment of the multimedia content that includes the first watermark message, and associating and storing one or more values of the first watermark message and the additional information. The method further includes repeating the above operations to extract additional watermark messages from additional segments of the content and to form a table or array of items that can be accessed by specifying the one or more values of the first watermark message or one or more values of the additional watermark messages.