Headset-Mounted Camera for Eye Movement Detection
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Solution Overview
Problem
Current healthcare lacks the necessary technical equipment and knowledge to effectively capture and diagnose eye movements associated with vertigo and dizziness, especially during vertigo attacks, which often occur outside medical facilities and can be challenging to analyze due to patient dizziness.
Innovation Solution
A portable headset-mounted camera arrangement that captures video sequences of one eye, allowing for synchronized eye movement analysis, which reduces costs and complexity, and includes a calibration method using a closable opening and mirror for correct positioning, enabling real-time diagnosis via mobile phone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a portable headset-mounted camera arrangement is used to capture eye movements, then diagnostic capability during vertigo attacks is improved, but device complexity and calibration difficulty increase
Solution Approach 1:
The calibration process is designed to be self-service, where the patient independently performs calibration by looking at the camera lens and adjusting the headset position themselves, without requiring physician assistance. This resolves the contradiction by enabling reliable diagnostic capability through portable equipment while keeping calibration simple and autonomous.
Solution Approach 2:
The camera lens itself serves as an intermediary object for calibration. The patient uses the camera lens as a visual reference point to align the headset correctly, eliminating the need for complex external calibration equipment or procedures. This simplifies the calibration process while maintaining diagnostic reliability.
2Measurement precision
If video sequences of eye movements are captured during vertigo attacks, then diagnostic accuracy is improved, but patient mobility and ease of operation are reduced
Solution Approach 1:
The system enables patients to independently capture their own eye movement data during vertigo attacks at home, without requiring physician presence or hospital visits. The automated calibration and recording process allows patients to perform the examination themselves, improving ease of operation while maintaining measurement precision through the standardized calibration procedure.
Solution Approach 2:
The calibration process is performed preliminarily before the actual diagnostic recording. By pre-calibrating the camera position and angle using the lens reflection method, the system ensures measurement precision is established in advance, allowing subsequent recordings to be made easily during vertigo attacks without compromising accuracy.
3Device complexity
If only one eye is examined to reduce costs and complexity, then device simplicity is improved, but measurement completeness may be reduced
Solution Approach 1:
The invention extracts and examines only the essential eye movement data from one eye that is sufficient for diagnosing vertigo conditions. By focusing on the critical diagnostic information from a single eye rather than requiring both eyes, the system reduces device complexity to one camera while maintaining adequate measurement precision for clinical diagnosis.
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
Enables accurate capture and diagnosis of eye movements during vertigo attacks, allowing for timely and remote analysis by physicians, reducing the need for patients to visit hospitals and improving diagnostic capabilities in general healthcare.
Implementation Method 1
a mirror 200, arranged in the headset 130, configured to reflect an image captured by the camera 120 from the first eye 111 to the second eye
Data Source
Figure 1A~1B
Figure 2~3A
Figure 3B
AI summary
Method (400) and arrangement (100) for examining eye movements of a first eye (111) of a patient via a camera (120). The arrangement (100) comprises a camera (120), configured to take a sequence of pictures of the first eye (111); a headset (130), configured to fit on a head (110) of the patient and to fixate the camera (120) in a position where a lens of the camera (120) is directed towards the first eye (111) of the patient, at a distance (d) from the first eye (111). The headset (130) further comprises a closable opening (135) in front of a second eye of the patient, which second eye is not examined by the camera (120).