Electronic Device Pulse Wave Amplitude Video Analysis
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Solution Overview
Problem
Current methods for acquiring and measuring blood flow variations, such as those related to cosmetic treatments, lack precision in assessing the effectiveness of continuously performed treatments like massages, which affects the consistency and motivation for long-term skincare.
Innovation Solution
An electronic device that captures video images of a user to acquire pulse wave amplitude information before and after a treatment, compares these values to determine blood flow variation, and evaluates the trend in this variation to assess the treatment's effectiveness, using a dedicated camera and processing units to analyze and display the results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional methods are used to acquire blood flow information from video, then basic pulse wave information can be obtained, but the measurement precision of treatment effects is insufficient
Solution Approach 1:
The patent segments the blood flow measurement into multiple components: pulse wave amplitude information from first video, pulse wave amplitude information from second video, comparison results indicating degree of variation, and trend information. This segmentation allows precise tracking of treatment effects over time by analyzing each component separately and combining them systematically.
Solution Approach 2:
The patent performs preliminary acquisition of pulse wave amplitude information before treatment (first video) and after treatment (second video). This preliminary action establishes baseline data and post-treatment data that can be systematically compared to measure treatment effectiveness, enabling precise evaluation before committing to long-term treatment plans.
2Reliability
If single-point blood flow measurement is performed, then immediate treatment effect can be detected, but continuous monitoring and trend analysis are lacking
Solution Approach 1:
The patent implements continuous monitoring by repeatedly performing video acquisition, pulse wave analysis, and comparison operations over multiple treatment sessions. The system continuously accumulates comparison results and derives trend information, maintaining uninterrupted observation of treatment effects to ensure reliable long-term assessment.
Solution Approach 2:
The patent establishes a feedback loop where comparison results from successive measurements are fed back to generate trend information, which then informs subsequent treatment decisions. This feedback mechanism ensures that each treatment session builds upon previous data, improving reliability through cumulative evidence while optimizing the time required for verification.
3Measurement precision
If detailed video analysis is performed to improve measurement accuracy, then treatment effects can be precisely measured, but the device complexity increases
Solution Approach 1:
The patent extracts only the essential pulse wave amplitude information from video data, separating this critical measurement from other video content. By taking out only the relevant biometric data needed for treatment assessment, the system achieves high measurement precision while avoiding the complexity of comprehensive video analysis.
Solution Approach 2:
The patent employs a multi-functional processing system that handles video acquisition, pulse wave detection, amplitude calculation, comparison operations, and trend analysis within an integrated framework. This universal approach allows the same system to perform multiple functions efficiently, reducing overall device complexity while maintaining high measurement precision across all operations.
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 approach allows for precise measurement of cosmetic treatment effects, maintaining user motivation by continuously monitoring and notifying the effectiveness of skincare treatments, ensuring skin turnover without stagnation.
Implementation Method 1
an imaging unit 16, configured to obtain a first video including a first image of a first portion of the user by image-capturing the user
Data Source
AI summary
An electronic device includes a processor that acquires first pulse wave amplitude information and second pulse wave amplitude information each indicating an amplitude of a pulse wave of a body, based on video information of respective first and second videos of the body obtained by image-capturing at least a portion of the body, with the second video being obtained after the first video. The processor compares the first pulse wave amplitude information with the second pulse wave amplitude information to output a comparison result indicating a degree of variation in a blood flow of the body, and stores the outputted comparison result in a memory, and acquires a trend in variation of the blood flow of the body based on a most recently acquired comparison result and the comparison result previously stored in the memory.