Head Posture Centering Data Correction via Habitual Pose Recording
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Solution Overview
Problem
Existing methods for determining the habitual head position of a subject during optical adjustments for glasses are static and may not accurately represent the subject's natural head posture, as they rely on snapshot measurements rather than continuous recording, leading to potential misrepresentation of the actual head position.
Innovation Solution
A method and device for recording the head pose over a period of time to determine a preferred head pose, allowing for the correction of centering data based on the habitual head position, using a combination of position and image recording devices with automated analysis to identify the most probable head posture during everyday activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If static snapshot measurement is used to determine head position, then measurement process is simple and quick, but measurement precision is poor because it may not represent actual habitual head posture
Solution Approach 1:
The patent implements continuous head position recording during everyday activities instead of static snapshot measurements. The recording device captures head pose data continuously over a defined period, ensuring that the habitual head position is accurately represented by analyzing multiple data points throughout natural daily routines, thereby improving measurement precision without requiring excessive time.
Solution Approach 2:
The patent performs preliminary continuous recording of head position during everyday activities before the actual optical adjustment measurement. This preliminary action collects baseline data about the subject's habitual head posture, which is then used to correct and optimize the centering data during the subsequent adjustment process, ensuring accurate representation of natural head position.
2Measurement precision
If continuous recording of head pose is performed, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical recording systems with an automated computing device that processes head position data. The system uses software algorithms to automatically analyze continuous recording data, determine habitual head position, and calculate correction values, thereby reducing mechanical complexity while maintaining high measurement precision through automated digital processing.
Solution Approach 2:
The recording device is designed to operate autonomously during everyday activities without requiring constant operator intervention. The system automatically records head pose data, processes the information, and generates correction values for centering data, enabling the device to serve itself in completing the measurement task while improving precision.
3Manufacturing precision
If manual determination of centering data is used, then device complexity is low, but manufacturing precision is poor due to operator subjectivity
Solution Approach 1:
The patent replaces manual determination of centering data with an automated computing device that objectively processes head position recording data. The system automatically calculates habitual head position and generates corrected centering data without operator intervention, eliminating subjectivity and improving manufacturing precision through consistent algorithmic processing.
Solution Approach 2:
The system implements feedback by using the recorded head position data to automatically adjust and correct centering data. The computing device analyzes the habitual head position from continuous recording and feeds this information back into the centering calculation process, ensuring that the final centering data accurately reflects the subject's natural head posture.
Data Source
Figure 1
Figure 2a~2d
AI summary
The invention relates to a method for determining centering data, in which a. an actual instantaneous head posture of a subject is determined, b. an arrangement of a spectacle frame (202) relative to the determined actual instantaneous head posture is determined, c. a habitual head posture is determined using an automated method, and d. the determined actual instantaneous head posture is corrected using the determined habitual head posture, wherein the determined actual instantaneous head posture is corrected using the determined habitual head posture such that the centering data are determined based on the habitual and not the random head posture. According to the invention, it is provided that e. the determination of the habitual head posture is carried out by determining a preferred head posture from data from a recording of the head posture over a period of time during which the subject is distracted, and that f.The invention corrects the actual current head position using the habitual head position by determining the deviation of the current head position from the habitual head position and using this deviation to convert the centering values. The invention further relates to a device and a computer program for carrying out the method.