Image Sensor Integrated Identification and Forgery Prevention
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Solution Overview
Problem
Existing image sensor technologies fail to guarantee consistency between acquired image information and the image pickup element that generated the information, making it difficult to identify the image pickup element responsible for the image data.
Innovation Solution
An image sensor that integrates image sensor identification information with acquired image information through an analog/digital conversion unit and outputs this integrated information to an external unit, enabling identification and ensuring consistency by using electronic signature information encrypted with the sensor's identification details.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If image sensor identification information is integrated with image information, then the ability to identify the image pickup element and guarantee data consistency is improved, but the device complexity increases due to additional processing units and encryption mechanisms
Solution Approach 1:
The patent merges the image sensor identification information with the image information into a single integrated data structure. This combining of identification data and image data ensures that they are processed and stored together, guaranteeing their consistency and preventing forgery while maintaining a unified processing flow that does not excessively increase system complexity
Solution Approach 2:
The patent applies encryption to the integrated information (including both image sensor identification information and image information) before output. This preliminary encryption action ensures that the data is protected from forgery and tampering before it leaves the image sensor, establishing authenticity and consistency in advance without requiring complex verification mechanisms downstream
2Reliability
If electronic signature information is encrypted and output, then the prevention of image forgery is improved, but the loss of time increases due to encryption and decryption processing
Solution Approach 1:
The encryption of the integrated information is performed as a preliminary action within the image sensor itself, before the data is output to external systems. By completing the encryption process at the source, the patent eliminates the need for time-consuming verification and decryption operations at subsequent stages, as the authenticity is already established through the encrypted electronic signature
Solution Approach 2:
The image sensor performs the encryption of its own output data autonomously without requiring external intervention. This self-service approach allows the sensor to independently generate encrypted electronic signature information that proves the authenticity of the image data, reducing the time burden on external systems and enabling faster verification elsewhere in the workflow
Data Source
AI summary
An image sensor 30 includes an image information processing unit 4 that forms integrated information in which image sensor identification information capable of identifying the image sensor 30 and image information obtained by an analog/digital conversion unit 25 are associated with each other, and an image information output unit 24 that outputs the integrated information to an external unit.