Smartphone Fluid Identification via Digital Image Color Analysis

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Solution Overview

Problem

Current methods for fluid identification and authentication, such as in the oil and wine industries, are often costly and require expensive equipment, limiting their accessibility for low-cost and high-performance analysis.

Innovation Solution

A method utilizing a smartphone with a microlens and image processing to analyze digital images of fluids based on color space characteristics, such as HSV, and tracking microbead motion to determine viscosity, enabling low-cost authentication and contamination detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional analytical methods are used for fluid identification and authentication, then measurement precision and reliability are improved, but device complexity and cost increase significantly

Engineering Contradiction:
Improvefluid identification accuracyVSAvoidequipment complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent uses digital images as a copy or representation of the fluid's optical properties instead of requiring direct physical or chemical analysis. By capturing images under controlled lighting conditions and analyzing color space characteristics (HSV, LAB, RGB), the system creates a digital replica of the fluid's identity that can be compared against reference databases, achieving accurate fluid identification without complex analytical equipment

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces complex mechanical and chemical analytical systems with an optical-digital system. Instead of using sophisticated instruments for fluid analysis, the invention substitutes a smartphone camera, controlled light sources, and image processing algorithms to perform fluid identification and authentication, dramatically simplifying the device while maintaining measurement precision

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If conventional analytical methods are used for fluid authentication, then reliability is improved, but cost increases significantly

Engineering Contradiction:
Improveauthentication reliabilityVSAvoidsystem cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent employs inexpensive, readily available components such as smartphone cameras, LED light sources, and standard image processing software instead of costly specialized equipment. The system uses disposable or low-cost elements like colored filters and reference fluid samples to create a reliable authentication mechanism that is accessible to small businesses and individual users

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The patent creates a multi-functional system where a single device (smartphone) performs multiple functions: capturing fluid images, analyzing color characteristics, comparing against references, and providing authentication results. This universal approach eliminates the need for separate specialized equipment for each analytical task, reducing overall system cost while maintaining reliability

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Measurement precision

If detailed fluid analysis is performed using conventional methods, then measurement precision is improved, but ease of operation deteriorates

Engineering Contradiction:
Improvefluid characterization accuracyVSAvoidanalysis simplicity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent implements automated image capture and analysis where the system itself performs the complex tasks of lighting control, image acquisition, color space conversion, and characteristic extraction. The user simply needs to place the fluid sample and press a button, while the system automatically processes the images through multiple color spaces (HSV, LAB, RGB) and compares results against reference databases, delivering precise fluid characterization without requiring user expertise in image analysis

Inventive Principle:
Principle #25Self-service

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 provides a cost-effective means for authenticating fluids and detecting contamination by using low-cost smartphone imaging, enhancing the capability to distinguish between different fluids through digital image analysis and viscosity determination.

Implementation Method 1

A method utilizing a smartphone with a microlens and image processing to analyze digital images of fluids based on color space characteristics

Methodology Applied
Scientific EffectLight focusing: Lens

Implementation Method 2

analyzing digital images of fluids based on color space characteristics

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentEP3717898B1Distinguishing fluids based upon determination and analysis of digital image color space characteristics
Publication Date: 2022.07.06 INTERNATIONAL BUSINESS MACHINE CORPORATION
  • EP3717898B1 patent drawingFigure 1
  • EP3717898B1 patent drawingFigure 2
  • EP3717898B1 patent drawingFigure 3

AI summary

A first series of images of a first fluid is received. A first set of fluid characteristics of the first fluid is determined from the first series of images. A second series of images of a second fluid is received. A second set of fluid characteristics of the second fluid is determined from the second series of images. A match is determined to be found between the first set of fluid characteristics and the second set of fluid characteristics. The second fluid is identified based upon determining that the first set of fluid characteristics matches the second set of fluid characteristics.