Image Processing Device Polarization Reflection Correction

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Solution Overview

Problem

Existing image processing technologies struggle to remove regular reflection light components from captured images without impairing the texture information of the subject.

Innovation Solution

An image processing device that acquires multiple polarized images with different polarization directions and outputs a corrected image by specifically correcting the reflection region in the specular reflection area based on these images.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If regular reflection light components are uniformly removed from captured images, then reflected images are corrected, but texture information of the subject is impaired

Engineering Contradiction:
Improvereflected imageVSAvoidtexture information
Core Design Contradiction:
Object-affected harmful factorsVSLoss of information

Solution Approach 1:

The patent applies different processing intensities to different regions within the specular reflection region. By determining a correction region that excludes certain areas from full correction, the system selectively removes reflected images only where necessary while preserving texture information in regions where it should be maintained, thus resolving the contradiction between reflection removal and texture preservation

Inventive Principle:
Principle #3Local quality

2Object-affected harmful factors

If polarized images with different polarization directions are acquired, then reflected image correction becomes possible, but device complexity increases

Engineering Contradiction:
Improvereflected image correctionVSAvoidimaging system
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The imaging device uses a single polarizing plate that can capture images at multiple polarization directions (0 degrees, 45 degrees, 90 degrees, 135 degrees) by rotating the plate between shots. This multi-functional approach allows the same hardware component to perform what would otherwise require multiple specialized cameras, reducing overall system complexity while enabling effective reflected image correction

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

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

The solution effectively corrects reflected images while maintaining the texture of the subject, preventing unnecessary removal of texture information.

Implementation Method 1

captured images captured through polarizing plates having different polarization directions

Methodology Applied
Scientific EffectPolarization: Polarisation

Data Source

PatentUS20250156998A1Image processing device
Publication Date: 2025.05.15 SONY SEMICON SOLUTIONS CORP
  • US20250156998A1 patent drawing
  • US20250156998A1 patent drawing
  • US20250156998A1 patent drawing

AI summary

An image processing device (100) includes a control unit (130). The control unit (130) acquires a plurality of polarized images (M2) having different polarization directions. The control unit (130) outputs a corrected image in which a specific region (CR) included in a specular reflection region (SR) is corrected on the basis of the plurality of polarized images (M2).