Diminished Reality Tool for AR Object Removal

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Solution Overview

Problem

Existing augmented reality applications face challenges in effectively removing unwanted real-world objects from images to facilitate the visualization of new virtual configurations, and accurately measuring spaces for proper fit analysis of virtual objects like kitchen cabinets.

Innovation Solution

A computer-based tool utilizing a reality staging engine and 3D modeler to declutter reality images by user-selectable diminished reality views, generating 3D models of environments with or without real-world objects, and enabling augmented reality subsystems to superimpose virtual elements for design analysis.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If augmented reality is used to visualize virtual objects in real environments, then design visualization capability is improved, but existing real-world objects obstruct the visualization of new virtual configurations

Engineering Contradiction:
Improvedesign visualization capabilityVSAvoidobstruction from existing objects
Core Design Contradiction:
Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The patent extracts and removes unwanted real-world objects from the captured image through image processing techniques. The system identifies objects to be removed, creates masks for these objects, and eliminates them from the image to produce a cleaned background that allows unobstructed visualization of virtual design elements.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent creates a copy of the background environment without the obstructing objects. By generating a modified version of the real environment with removed objects, the system allows virtual objects to be superimposed and visualized as if the real objects were not present, while maintaining the authentic feel of the actual space.

Inventive Principle:
Principle #26Copying

2Adaptability or versatility

If real objects are removed from images to enable virtual configuration visualization, then design flexibility is improved, but measurement accuracy of the underlying space may deteriorate

Engineering Contradiction:
Improvedesign flexibilityVSAvoidspace measurement accuracy
Core Design Contradiction:
Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The patent introduces an intermediary measurement layer that operates independently of the visual appearance of objects. The system captures geometric and spatial data from the environment, creating a measurement model that remains valid even when visual objects are removed or modified, thus preserving measurement accuracy while enabling design flexibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments the image processing into distinct functional layers: object removal for visualization purposes and geometric measurement for spatial analysis. By separating these functions, the system can remove objects from the visual display while maintaining intact measurement data for accurate spatial analysis and virtual object fitting.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If image processing is used to remove real objects, then visualization quality is improved, but processing time and computational complexity increase

Engineering Contradiction:
Improvevisualization qualityVSAvoidprocessing time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent applies partial action by selectively removing only the specific objects that obstruct design visualization, rather than processing the entire image uniformly. The system identifies and removes only the necessary objects while leaving other parts of the image intact, reducing processing time while maintaining visualization quality.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The patent performs preliminary object identification and segmentation before the actual removal process. By pre-processing the image to identify objects that need removal and preparing their masks in advance, the system optimizes the subsequent removal operation, reducing overall processing time and computational load during interactive design sessions.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP2889844B1Diminished reality
Publication Date: 2021.08.11 DASSAULT SYSTEMES SA
  • EP2889844B1 patent drawingFigure 1
  • EP2889844B1 patent drawingFigure 2A~2C
  • EP2889844B1 patent drawingFigure 3A~3B

AI summary

A computer tool generates user-defined diminished reality images of a subject environment from source images. The diminished reality images display less real-world objects in the subject environment than that displayed in the source images. A 3D model of the subject environment in diminished reality is formed from the diminished reality images. The 3D model supports augmented reality user interaction with views of the subject environment diminished in reality and tidied/decluttered of user-selected objects.