Common Customization Function for Forensic Watermarking
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Solution Overview
Problem
Existing forensic marking systems face challenges in efficiently and flexibly applying a range of marking techniques across different devices and content types, with limitations in supporting diverse marking schemes, increased processing requirements, and vulnerability to attacks, particularly due to the need for complex customization functions and extensive processing resources.
Innovation Solution
A method and system utilizing a common customization function that processes pre-processed tributaries and customization information to produce distinctly marked content, enabling compatibility with various forensic marking schemes through a generic transformation technique, which includes mark encoding, assembly, and post-processing to enhance security and transparency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wide range of forensic marking schemes are supported across different devices and content types, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements a universal customization function that can perform multiple forensic marking operations through a single integrated component. This function supports diverse marking schemes including watermarking, splicing, and substitution by providing a common interface and processing pipeline that adapts to different marking requirements through configurable parameters rather than requiring separate dedicated components for each marking type.
2Reliability
If extensive processing resources are allocated for forensic marking, then marking robustness is improved, but productivity decreases
Solution Approach 1:
The patent performs preprocessing operations on content before the actual forensic marking is applied. This includes organizing content into manageable segments, pre-computing transformation parameters, and preparing reference materials that will be used during marking. By completing these preparatory steps in advance, the actual marking process requires fewer computational resources during execution while maintaining robustness.
Solution Approach 2:
The patent divides the forensic marking process into discrete, independent stages including preprocessing, marking application, and postprocessing. Each stage can be executed with appropriate resource allocation, allowing complex marking operations to be broken down into smaller tasks that can be processed efficiently in sequence or parallel, thereby maintaining robustness without excessive resource consumption.
3Adaptability or versatility
If complex customization functions are used to handle diverse marking schemes, then adaptability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent introduces a standardized interface layer between the user and the complex customization function. This interface provides simple, consistent commands for applying forensic marks regardless of the underlying complexity of the marking scheme. The intermediary translates high-level user requests into the appropriate low-level operations, shielding users from complexity while maintaining access to diverse marking capabilities.
Data Source
AI summary
Methods, systems, and apparatus are disclosed which enable flexible insertion of forensic watermarks into a digital content signal using a common customization function. The common customization function flexibly employs a range of different marking techniques that are applicable to a wide range of forensic marking schemes. These customization functions are also applicable to pre-processing and post-processing operations that may be necessary for enhancing the security and transparency of the embedded marks, as well as improving the computational efficiency of the marking process. The common customization function supports a well-defined set of operations specific to the task of forensic mark customization that can be carried out with a modest and preferably bounded effort on a wide range of devices. This is accomplished through the use of a generic transformation technique for use as a “customization” step for producing versions of content forensically marked with any of a multiplicity of mark messages.