Property Sketching via LiDAR Corner Capture and Motion Tracking

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Solution Overview

Problem

Existing property-scanning and sketching tools require full interior scanning, which is slow, inaccurate, and invasive, posing privacy concerns and affecting the accuracy of property valuations.

Innovation Solution

A mobile device with LiDAR sensors and IMU captures exterior or interior corners and walls, using plane detection and tracking to generate a property sketch, with post-processing to correct anomalies and ensure accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If full interior scanning is performed to create property sketches, then measurement completeness is improved, but scanning time and operational complexity increase significantly

Engineering Contradiction:
Improvemeasurement completenessVSAvoidscanning time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent extracts only the essential features needed for property sketching (exterior corners and interior perimeter walls) rather than requiring a complete full-scan of all interior spaces. This selective feature capture approach maintains measurement completeness for boundary definition while dramatically reducing scanning time and operational burden.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system performs partial scanning by capturing only critical boundary features (corners and perimeter walls) rather than exhaustive interior scanning. This partial action approach provides sufficient data for accurate property sketches and valuations without the time cost of complete interior documentation.

Inventive Principle:
Principle #16Partial or excessive action

2Measurement precision

If full interior scanning is performed to create property sketches, then measurement completeness is improved, but device complexity and operational difficulty increase

Engineering Contradiction:
Improvemeasurement completenessVSAvoidoperational difficulty
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent simplifies operation by extracting only the essential scanning tasks (capturing exterior corners and interior perimeter walls) from the complex process of full interior scanning. This reduces the number of scanning operations the user must perform while maintaining sufficient measurement completeness for accurate property sketches.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system requires partial action rather than complete interior scanning, reducing operational difficulty. Users only need to capture key boundary features rather than systematically scan every interior space, making the process more accessible and less complex while maintaining measurement adequacy.

Inventive Principle:
Principle #16Partial or excessive action

3Measurement precision

If detailed interior scanning is performed, then property sketch accuracy is improved, but privacy concerns and harmful factors increase

Engineering Contradiction:
Improveproperty sketch accuracyVSAvoidprivacy concerns
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent extracts only the boundary-defining features (exterior corners and interior perimeter walls) necessary for property sketching, avoiding capture of detailed interior contents and personal spaces. This selective extraction maintains property measurement accuracy while minimizing privacy intrusion into homeowners' personal spaces.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The system performs partial scanning focused solely on structural boundary elements rather than comprehensive interior documentation. This partial action approach provides sufficient data for accurate property valuations without capturing sensitive interior details that would raise privacy concerns.

Inventive Principle:
Principle #16Partial or excessive action

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

Faster and more accurate property sketching is achieved with direct measurement of features, preserving privacy and improving valuation accuracy.

Implementation Method 1

In some embodiments, the feature marking may be facilitated with the use of Light Detection and Ranging (LiDAR) sensors and accompanying processors. For instance, LiDAR may be used to estimate a location of a feature of interest in space.

Methodology Applied
Scientific EffectLight Detection and Ranging (LiDAR): LIDAR

Implementation Method 2

As the user traverses around the structure, the distance traveled is captured by an Inertial Measurement Unit (IMU) of the mobile device.

Methodology Applied
Scientific EffectInertial measurement: Accelerometer

Implementation Method 3

Location and distance traveled between points may use any combination of the IMU, compass, and Global Positioning Systems (GPS) provided natively on the mobile device.

Methodology Applied
Scientific EffectGlobal Positioning System:

Data Source

PatentUS20250384171A1Property sketching method and tools
Publication Date: 2025.12.18 CORELOGIC SOLUTIONS LLC
  • US20250384171A1 patent drawing
  • US20250384171A1 patent drawing
  • US20250384171A1 patent drawing

AI summary

A method, system, and device for sketching a property are provided. The method may include presenting a video image of a property, enabling a selection of a plurality of features of interest associated with the property such as for example property exterior corners, interior corners, or interior walls via a user interface, tracking a motion of the communication device as the communication device travels between adjacent features of interest in the plurality of features of interest, and recording a location associated with each of the plurality of features of interest upon receiving the selection of each of the plurality of features of interest. The method may also include generating a first instance of a sketch of the property and providing the first instance of the sketch of the property to post-processing functionality that normalizes anomalies and/or reconciles features in the first instance of the sketch of the property.