3D Object Analysis Using Spectral Mapping for Material Degradation

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Solution Overview

Problem

Current web mapping services and driver assistance systems lack detailed information on material properties and degradation states of objects, such as buildings and environments, which limits their accuracy and effectiveness in modeling and maintenance.

Innovation Solution

A device and method that utilize imaging sensors to detect image data points, assign spatial coordinates, and determine material properties by matching spectral information with a spectral library, enabling the generation of detailed three-dimensional models and improved surveillance of object states.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional imaging methods are used for object analysis, then the system complexity remains low, but the material property determination accuracy and detail level are insufficient

Engineering Contradiction:
Improvematerial property determination accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple imaging sensors (spectral sensor, laser scanner, camera) into a single integrated device for analyzing objects. This merging approach enables simultaneous acquisition of spectral, geometric, and visual data, thereby improving material property determination accuracy while managing system complexity through unified hardware architecture and coordinated operation of multiple sensors

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The analyzing device is designed with multi-functional capabilities to perform various analysis tasks including spectral analysis, geometric modeling, and material property determination. The device can analyze different types of objects (buildings, vegetation, terrain) and provide comprehensive information (three-dimensional models, material composition, degradation states), making it a universal solution that addresses multiple measurement needs simultaneously

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

2Loss of information

If detailed spectral analysis is performed to determine material properties, then the information completeness improves, but the analysis time increases

Engineering Contradiction:
Improveinformation completenessVSAvoidanalysis time
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The system performs preliminary actions by pre-processing spectral data and pre-establishing reference spectral libraries for different materials. Spectral signatures of known materials are stored in advance, allowing the system to quickly compare measured spectra against these pre-prepared references. This preliminary preparation enables rapid material identification without requiring extensive real-time analysis, thus reducing analysis time while maintaining information completeness

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces traditional mechanical or manual analysis methods with automated spectral analysis and computer-based pattern recognition. The system uses algorithms to automatically compare spectral data with reference libraries and generate material property determinations, substituting manual inspection and mechanical measurement processes with electronic and computational methods that are both faster and more comprehensive

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

3Manufacturing precision

If comprehensive object analysis including spectral data is conducted, then the model detail level improves, but the processing complexity increases

Engineering Contradiction:
Improvemodel detail levelVSAvoidprocessing complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent segments the complex analysis process into distinct functional modules: spectral data acquisition, geometric data acquisition, data integration, material property determination, and three-dimensional model generation. Each module handles a specific aspect of the analysis, processing data independently before integration. This segmentation reduces processing complexity by breaking down the overall complex task into manageable, specialized sub-tasks that can be processed in parallel or sequence

Inventive Principle:
Principle #1Segmentation

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 provides highly accurate and detailed three-dimensional models, enhances material property determination, and facilitates efficient maintenance by identifying degradation states, contamination, and coverage levels, improving navigation and reducing maintenance costs.

Implementation Method 1

measured radiation signals originating from or reflected by the object

Methodology Applied
Scientific EffectReflection: Reflection

Implementation Method 2

spectral information obtained from the measured radiation signals

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentEP3580547B1Device and method for analyzing objects
Publication Date: 2023.04.05 VOXELGRID GMBH
  • EP3580547B1 patent drawingFigure 1
  • EP3580547B1 patent drawingFigure 2
  • EP3580547B1 patent drawingFigure 3

AI summary

A device and a method for analyzing objects, including buildings, build environments and/or environment areas is proposed. Image data points of an object are gathered and geo-referenced in order to generate object data points. Properties of the object such as material composition, material state or material properties are determined based spectral characteristics evaluation. Three-dimensional object models are generated in accordance with the evaluation of spectral characteristics.