Electronic Apparatus for Uniform Facial Skin Analysis
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Solution Overview
Problem
Existing electronic apparatuses for analyzing facial skin struggle with distinguishing between dark portions and pigmentation due to inadequate light intensity, and they are bulky and inconvenient to carry, as they require the face to be inserted and have non-uniform illumination.
Innovation Solution
An electronic apparatus that photographs the face multiple times using varying photographing parameters to obtain multiple images, extracts and synthesizes face regions to create a unified image with uniform brightness, allowing for accurate skin analysis and enabling a compact, portable design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light source intensity is increased to improve skin analysis accuracy, then the brightness of the face image is improved, but image information on specific regions is lost due to overexposure
Solution Approach 1:
The face image is divided into multiple regions (first region and second region) with different illumination requirements. The illumination system provides different light intensities to different regions, allowing optimal exposure for each region without overexposure or underexposure, thus preserving image information while ensuring sufficient brightness.
Solution Approach 2:
Different regions of the face receive different illumination intensities tailored to their specific requirements. The first region receives a first light intensity while the second region receives a second light intensity, ensuring that each region is properly illuminated without causing overexposure in bright areas or underexposure in dark areas.
2Stability of the object's composition
If the electronic apparatus surrounds the entirety of the user's face to provide uniform illumination, then the illumination uniformity is improved, but the device size increases making it inconvenient to carry
Solution Approach 1:
The illumination system is segmented into multiple independent light sources positioned at different locations. Each light source illuminates a specific region of the face, and by coordinating their intensities, uniform illumination across the entire face is achieved without requiring a large enclosing structure.
Solution Approach 2:
Instead of providing uniform illumination from a single large surrounding structure, the system uses multiple light sources positioned at different spatial locations and angles. By controlling the intensity of each light source, uniform illumination is achieved through dimensional distribution rather than physical enclosure.
3Device complexity
If the light source intensity is decreased to reduce device complexity, then the device simplicity is improved, but the distinction between dark portions and pigmentation becomes difficult
Solution Approach 1:
The face is divided into multiple regions that are imaged separately with optimized illumination for each region. This segmentation allows dark portions and pigmentation to be distinguished with high precision by capturing them under appropriate light intensities, while the overall device remains relatively simple.
Solution Approach 2:
The system changes the illumination parameter (light intensity) according to the specific region being captured. By adjusting the intensity parameter for different regions, the system achieves high measurement precision for distinguishing skin features without requiring complex hardware modifications.
Data Source
AI summary
An electronic apparatus for illuminating and photographing a user's face and a control method thereof are provided. The electronic apparatus includes a camera configured to photograph a user's face, a transceiver configured to perform communication with a user terminal, and at least one processor configured to photograph the user's face a plurality of times on the basis of a plurality of photographing parameters to obtain a plurality of images, extract face regions corresponding to each of the plurality of images photographed on the basis of the plurality of photographing parameters, synthesize the extracted user's face regions with each other to create a synthesized image, and control the transceiver to transmit data on the synthesized image to the user terminal for the purpose of skin analysis for the user's face.