Skin Texture Evaluation Using Skin Blob Analysis
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Solution Overview
Problem
Existing skin texture measurement devices are expensive and do not effectively communicate improvements in skin texture to users, as they rely on three-dimensional imaging that is difficult to interpret.
Innovation Solution
A device and method that evaluates skin texture based on skin blobs, measuring parameters like area, border length, and direction in a skin image, providing a scoring system and visual displays to easily assess skin texture improvements using a cheap camera.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a projection device is used to generate a three-dimensional skin image, then measurement precision is improved, but device cost increases
Solution Approach 1:
The patent uses a camera to capture two-dimensional skin images as copies of the actual skin surface, eliminating the need for expensive projection devices. The skin blob analysis is performed on these captured images, providing an affordable alternative that maintains measurement capability through image processing rather than physical 3D projection
Solution Approach 2:
The patent replaces the mechanical projection device with an optical imaging system (camera) combined with digital image processing. Instead of using physical projection to create 3D images, the system uses computational methods to analyze skin texture from 2D images by detecting and measuring skin blobs, substituting mechanical complexity with software-based analysis
2Measurement precision
If a three-dimensional skin image is generated, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent employs color mapping to represent skin texture characteristics, where different colors indicate different skin blob properties. This visual encoding transforms complex 3D measurement data into intuitive color-coded 2D images that users can easily interpret, showing skin texture state without requiring users to understand three-dimensional image interpretation
Solution Approach 2:
The system presents simplified 2D representations (copies) of skin texture information rather than full 3D images. By displaying processed skin blob analysis results in two-dimensional format with enhanced visual features, the system maintains measurement precision while improving user comprehension through familiar 2D image interpretation
3Ease of operation
If skin texture is evaluated using skin blob parameters, then ease of operation is improved, but measurement precision may deteriorate
Solution Approach 1:
The patent segments the skin image into multiple skin blobs, each representing a distinct skin texture feature. By dividing the complex skin surface into discrete analyzable units and measuring parameters like area, perimeter, and shape factors for each blob, the system achieves both simplicity (through standardized parameter measurement) and precision (through detailed analysis of multiple segmented features)
Solution Approach 2:
The patent transforms skin texture information into multiple quantitative parameters (area, perimeter, circularity, aspect ratio) derived from skin blob geometry. This parameter transformation converts visual skin texture data into measurable numerical values that maintain measurement precision while enabling straightforward computational evaluation and comparison
Data Source
AI summary
Embodiments relate to an evaluation device for a skin texture based on a skin blob, which includes a skin blob determining unit configured to determine a skin blob in a skin image, a skin blob information measuring unit configured to measure at least one of a gross area, an average area, a number, a gross border length, an average border length, a direction and an angle of the skin blob in the skin image, and a skin texture evaluating unit configured to evaluate a skin texture of the skin image based on the measurement result; and an evaluation method thereof.