Wearable Imaging Display With Pupil-Vector Image Alignment
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Solution Overview
Problem
Wearable devices with imaging display systems often cause discomfort due to significant differences between the displayed image and the real-world view, particularly when the lens center and pupil axis do not align, leading to discrepancies in captured and real images.
Innovation Solution
An imaging display device equipped with an imaging unit, processing unit, and pupil detection unit, which uses photoelectric conversion elements to acquire and process image information based on vector information from the pupil, adjusting the display to align with the user's actual viewpoint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image capturing is performed using a plurality of image sensors arranged at a glasses frame, then image information can be obtained from multiple positions, but the positional relationship between the lens of glasses and the pupil of the user is not factored in, causing a difference between the captured image and the real image
Solution Approach 1:
A pupil detection unit is introduced as an intermediary component between the image sensors and the processing unit. This unit detects the position of the user's pupil and provides this information to the processing unit, which then uses it to adjust the captured image information. This mediator enables the system to account for the positional relationship between the lens and pupil without fundamentally redesigning the entire imaging system.
Solution Approach 2:
The system changes the parameter used for image processing from solely relying on the fixed positions of image sensors to dynamically incorporating the pupil position parameter. By detecting the actual pupil position and using it as a reference for image adjustment, the system adapts to variations in user anatomy and maintains accurate image representation despite differences in lens-pupil alignment.
2Ease of operation
If the center position of the lens of glasses is used as the reference for image capturing, then the imaging system is simplified, but a difference is generated between the displayed image and the real event when the central axis of the pupil and the center position of the lens do not coincide
Solution Approach 1:
The system enables self-service adjustment by automatically detecting the user's pupil position and using this information to autonomously correct image alignment. The processing unit automatically adjusts the captured image based on the detected pupil position without requiring manual intervention or complex mechanical adjustments, making the system both easy to operate and precise in its alignment.
3Productivity
If image information is generated without considering the pupil position, then the processing procedure is simplified, but discomfort is caused to the user due to the difference between the displayed image and the real-world view
Solution Approach 1:
The system performs preliminary action by detecting the pupil position before completing the image processing and display. By acquiring the pupil position information in advance and using it to pre-adjust the captured image data, the system ensures that the final displayed image is properly aligned with the user's actual viewpoint, preventing discomfort before it occurs.
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
This configuration reduces the difference between the displayed image and the real-world view, providing a more comfortable user experience by ensuring the displayed image accurately reflects the user's perspective.
Implementation Method 1
The imaging unit includes a plurality of photoelectric conversion elements, and is configured to acquire first image information
Data Source
AI summary
An imaging display device includes an imaging unit, a processing unit, a display unit, and a pupil detection unit. The imaging unit includes a plurality of photoelectric conversion elements and is configured to acquire first image information. The processing unit is configured to process a signal from the imaging unit and generate second image information. The display unit is configured to display an image that is based on the signal from the processing unit. The pupil detection unit is configured to detect vector information of a pupil. The processing unit generates the second image information by processing the first image information based on the vector information on the pupil.