Mobile Iris Scanner Mirror and Sensor
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Solution Overview
Problem
Existing biometric systems for iris image acquisition are not optimized for compactness and mobility, often being bulky and requiring multiple sensors for different types of imagery, which increases cost and complexity, and struggles with acquiring high-quality images efficiently.
Innovation Solution
A compact, mobile apparatus with a sensor and mirror system that optimizes iris image acquisition by using a single sensor for both infrared and visible images, includes a mirror to guide the user's iris positioning, and an image processing module that selects and encrypts high-quality images for efficient storage and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sensors are used for different types of imagery (infrared and visible), then image quality and versatility are improved, but device complexity and cost increase
Solution Approach 1:
The patent applies a single sensor that can function in both infrared and visible spectrums. The sensor is configured with appropriate filtering and illumination systems to capture both types of imagery, eliminating the need for separate sensors and reducing overall device complexity while maintaining versatility
Solution Approach 2:
The patent combines infrared and visible image acquisition capabilities into a single integrated sensor system. By merging the functions of what would traditionally require separate sensors into one unified component, the system reduces complexity while preserving the ability to acquire both infrared and visible images
2Volume of moving object
If a compact device design is implemented, then mobility is improved, but image acquisition quality may deteriorate
Solution Approach 1:
The patent employs a compact mirror positioned within the device that reflects infrared illumination onto the iris. This nested optical component allows the system to maintain high image quality by properly illuminating the iris in a space-constrained environment, achieving both compactness and measurement precision
Solution Approach 2:
The patent uses a mirror to redirect light paths in a different spatial dimension, allowing infrared illumination to reach the iris indirectly. This dimensional approach to light routing enables high-quality image acquisition within a compact form factor by utilizing available space more efficiently
3Measurement precision
If high-quality iris images are acquired and stored, then biometric matching accuracy is improved, but memory requirements increase
Solution Approach 1:
The patent extracts and stores only the essential biometric features from the iris images rather than storing complete high-resolution images. By extracting key identifying characteristics and storing only those data elements, the system maintains biometric matching accuracy while significantly reducing memory requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables efficient, high-quality iris image acquisition in a compact and mobile device, reducing memory and bandwidth requirements while ensuring accurate biometric matching and secure data transmission.
Implementation Method 1
a compact mirror can be positioned between the sensor and the iris during iris image acquisition. The mirror can transmit a portion of light reflected off the iris to the sensor.
Implementation Method 2
A sensor can be used to acquire an infra-red image of a subject's iris and a non-infra-red image of a feature of the subject.
Data Source
AI summary
The present disclosure is directed towards a compact, mobile apparatus for iris image acquisition, adapted to address effects of ocular dominance in the subject and to guide positioning of the subject's iris for the image acquisition. The apparatus may include a sensor for acquiring an iris image from a subject. A compact mirror may be oriented relative to a dominant eye of the subject, and sized to present an image of a single iris to the subject when the apparatus is positioned at a suitable distance for image acquisition. The mirror may assist the subject in positioning the iris for iris image acquisition. The mirror may be positioned between the sensor and the iris during iris image acquisition, and transmit a portion of light reflected off the iris to the sensor.