Handheld Biometric Capture Device for Portable Iris Recognition
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Solution Overview
Problem
Existing biometric identification systems, particularly those using iris recognition, are limited by their fixed and complex nature, making them unsuitable for portable or handheld applications, which hinders their use in real-time scenarios due to difficulties in capturing high-quality, focused images.
Innovation Solution
A handheld biometric processing and communication system that utilizes a commercially available mobile device, such as an iPhone or Android, in conjunction with a dedicated biometric processing device, to capture and transmit digital images of biometric attributes like fingerprints or irises to a back-end server for encoding and comparison, leveraging existing wireless communication networks for secure and efficient identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If fixed, hard-wired iris recognition systems are used, then high identification accuracy is achieved, but portability and real-time application capability are lost
Solution Approach 1:
The system divides the biometric identification function into two parts: a portable handheld device for capturing iris images and a separate processing system for encoding and comparison. This segmentation allows the capture device to be portable while maintaining accurate identification through the separate processing component.
Solution Approach 2:
The patent introduces a portable handheld device as an intermediary between the subject and the fixed processing system. This intermediary captures high-quality iris images in real-time scenarios and transmits them to the processing system, enabling portability without sacrificing identification accuracy.
2Measurement precision
If fixed optical platforms are used, then high-quality iris image capture is achieved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the image capture function from the complex fixed optical platform and places it in a simplified handheld device. The complex encoding and comparison functions remain in the fixed processing system, allowing the handheld device to be less complex while still achieving high-quality image capture.
Solution Approach 2:
Instead of placing all processing functions in the handheld device, the patent inverts the architecture by keeping the complex processing in a fixed system and only moving the simpler capture function to the portable device. This reduces the complexity of the handheld device while maintaining overall system performance.
3Adaptability or versatility
If all processing is done locally in handheld devices, then portability is maintained, but processing power and speed are insufficient
Solution Approach 1:
The system segments processing tasks between the handheld device and the remote server. The handheld device performs only image capture and transmission, while the computationally intensive encoding and comparison operations are performed on the server with sufficient processing power.
Solution Approach 2:
The handheld device acts as an intermediary that captures images and transmits them to a remote processing system. This allows the system to maintain portability at the capture point while leveraging the processing power of a fixed server for the actual biometric analysis.
Data Source
AI summary
A mobile, wireless biometric identification system includes a biometric capture device which enables a smartphone, using a commercially established wireless communication networks, to capture a digital image of a human biometric (iris, fingerprint, etc.) for transmission to a central server. The biometric capture device captures a high quality image for encoding and comparison, while the overall system leverages the existing cellular communication network. The device can be used as an interface to medical databases and devices used to diagnose and treat patients.