Iris Recognition Camera System with Position Feedback
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Solution Overview
Problem
Conventional iris recognition systems face challenges in accurately recognizing the iris position within the camera lens, leading to reduced accuracy due to the user's inability to verify if their iris is centered, which can change when checking its position on a mobile device display.
Innovation Solution
An iris recognition camera system with indication units around the image pickup unit, including light emitting modules, that analyze the iris image position and provide feedback to align the iris correctly within a reference zone, ensuring accurate recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional iris recognition camera is used, then the system structure is simple, but the user cannot check whether the iris is located in the central area of the lens, resulting in reduced recognition accuracy
Solution Approach 1:
The patent implements a feedback mechanism by displaying the captured iris image on a display unit and providing guidance information to the user. The system captures the iris image, determines its position relative to the lens center, and provides visual feedback through the display unit to guide the user in adjusting their position until the iris is properly centered, thereby improving measurement precision without significantly increasing device complexity.
Solution Approach 2:
The patent introduces an intermediary element - the display unit - that mediates between the image pickup unit and the user. The display unit shows the captured iris image and provides guidance information, serving as an intermediary that communicates position information to the user without requiring direct modification of the camera lens or image sensor, thus resolving the contradiction between accuracy and complexity.
2Ease of operation
If the user checks the iris position on the mobile device display, then the user can verify iris centering, but the iris position may change during viewing, reducing recognition accuracy
Solution Approach 1:
The patent applies preliminary action by providing real-time guidance information on the display unit that directs the user to adjust their position before the final recognition is performed. The system continuously monitors iris position and provides preemptive guidance to keep the iris centered, preventing position changes rather than correcting them after they occur, thereby maintaining both ease of operation and measurement precision.
Solution Approach 2:
The system implements continuous feedback by displaying the current iris position and providing real-time guidance information on the display unit. This feedback loop allows the user to make immediate adjustments while viewing the display, ensuring the iris remains centered throughout the verification process and eliminating the accuracy loss that occurs when position changes happen after viewing.
3Productivity
If rapid iris recognition is achieved by requiring precise centering, then authentication speed increases, but the complexity of ensuring accurate positioning increases
Solution Approach 1:
The patent implements self-service by enabling the user to autonomously perform the positioning task using guidance information provided on the display unit. The system captures images, determines position, and provides intuitive guidance that the user can follow without external assistance or complex automated positioning mechanisms. This approach increases authentication speed while avoiding the complexity of motorized adjustment systems or sophisticated active alignment mechanisms.
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 system enables easy indication of the iris position, allowing for rapid and accurate iris recognition by guiding the user to center their iris, thereby enhancing the security authentication process.
Implementation Method 1
An iris recognition system is a system that extracts characteristic iris patterns from iris images, taken by a camera
Implementation Method 2
each of the indication units may include at least one light emitting module
Data Source
AI summary
An iris recognition camera system is provided to include: an image acquirer having an image sensor; at least one display arranged outside of the imaging unit; an analyzer for analyzing the position of an iris image taken, which has been generated by the image acquirer, in the image sensor; and a controller for controlling the operation of the at least one display in response to a result value which has been output from the analyzer. As a result, the iris recognition camera system can easily inform a user of the position of the iris image taken, enabling more rapid and accurate recognition of iris.