Interactive Body Positioning via Visual Feedback
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Solution Overview
Problem
Existing systems for guided setup processes, such as those for personal care devices like toothbrushes, require user cooperation and precise arrangement of components, which can be cumbersome and prone to errors, especially in determining the optimal position and orientation of body parts like the face for accurate sensor data processing.
Innovation Solution
A device equipped with a camera for capturing body parts, sensors for determining roll, pitch, and yaw angles, and an analyzer to provide visual feedback on the alignment of the body part within a predetermined region, assisting users in adjusting their position and orientation for correct alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the system requires precise arrangement of components and user cooperation for proper operation, then the measurement precision and reliability are improved, but the ease of operation deteriorates
Solution Approach 1:
The system performs preliminary calibration by capturing images of the user's face at multiple predetermined positions (rest position, left, right, up, down) before actual operation. This preliminary action establishes reference data that simplifies subsequent brushing position determination, eliminating the need for complex real-time calculations and reducing setup complexity for users.
Solution Approach 2:
The system provides visual feedback by displaying captured images on a screen and comparing them against reference images to guide users in achieving proper positioning. This feedback mechanism helps users understand whether they are correctly positioned without requiring them to comprehend complex technical parameters, thus improving ease of operation while maintaining measurement precision.
2Measurement precision
If the system uses multiple sensors and cameras to capture precise body position data, then the measurement precision is improved, but the device complexity increases
Solution Approach 1:
The system uses a single mobile device that performs multiple functions: capturing images via built-in camera, detecting orientation via sensors, processing data, and providing visual feedback through the display. This multi-functional approach eliminates the need for separate dedicated devices for each function, reducing overall system complexity while maintaining measurement precision through the integration of multiple capabilities in one universal device.
Data Source
AI summary
A device and a method for determining a position of a user's body portion. The device includes a camera, configured to capture the body portion, and a display for providing visual feedback. A sensor determines at least one of a roll angle, a pitch angle, and a yaw angle of the device, and an interface receives picture data related to a pictorial representation of the body portion captured and sensor data related to the determined angle of the device. An analyzer analyzes, based on the picture data, whether the captured body portion is within a predetermined region of the picture and, based on the sensor data, whether at least one of the roll angle, the pitch angle, and the yaw angle is within a predetermined angle range. The method includes capturing the body portion, providing visual feedback, receiving angle data, receiving picture data, and analyzing whether the captured body portion is within a predetermined region and whether at least one of the roll, pitch, and yaw angles is within a predetermined angle range.