研究目的
Investigating the application of optical mouse sensors for eye blink detection and pupil tracking to develop a low-cost human-computer interaction device for individuals with severe disabilities.
研究成果
The optical mouse sensor can effectively detect pupil displacements and blinks for a low-cost human-computer interface. The device shows promise for individuals with severe disabilities, though improvements in head movement compensation and user interaction are needed.
研究不足
The device's performance is sensitive to head movements and requires precise initial adjustment. The small pupil displacement range limits its use as a standard eye tracker. Glasses can degrade image quality, affecting detection.
1：Experimental Design and Method Selection:
The study utilizes an optical mouse sensor (ADNS-3080) with modified optics and illumination for eye imaging. Two algorithms are developed for pupil detection and blink detection.
2：Sample Selection and Data Sources:
Images of the eye are acquired from 8 volunteer users under controlled conditions.
3：List of Experimental Equipment and Materials:
ADNS-3080 optical mouse sensor, CAY46 lens, SFH-4350 LED, PIC18F46J50 microcontroller.
4：Experimental Procedures and Operational Workflow:
The sensor captures eye images processed by the microcontroller to detect pupil position and blinks, translating these into mouse actions.
5：Data Analysis Methods:
Pupil detection error is calculated using Euclidean distance between manual and algorithm-detected pupil positions.
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