Building Video Narration From Image Analysis for Indoor Navigation

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Solution Overview

Problem

Existing methods for capturing and representing building interior information, such as floor plans and textual descriptions, are often inaccurate, incomplete, and difficult to construct and maintain, making it challenging to effectively identify and navigate buildings remotely.

Innovation Solution

Automated generation of building videos with accompanying narrations using machine learning models to analyze acquired images and other building information, including panorama images, to determine building attributes and generate synchronized visual and audio descriptions, enabling efficient identification and navigation of buildings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If floor plans are used to represent building interior information, then some layout information is provided, but they are difficult to construct, maintain, scale, and visualize

Engineering Contradiction:
Improvebuilding interior information representationVSAvoidfloor plan construction and maintenance complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent uses automated image capture and processing to create digital representations of building interiors, replacing manual floor plan creation. Images are captured using cameras or other imaging devices and processed to extract layout information, automatically generating visual representations without manual construction

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent replaces manual mechanical processes of floor plan creation with automated computational image processing. Machine learning models and algorithms automatically analyze captured images to extract layout information, eliminating the need for manual drafting and maintenance of floor plans

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

2Loss of information

If textual descriptions of buildings are used, then some information is provided, but they are often inaccurate and incomplete

Engineering Contradiction:
Improvebuilding description accuracyVSAvoidbuilding attribute detail accuracy
Core Design Contradiction:
Loss of informationVSMeasurement precision

Solution Approach 1:

The patent creates accurate visual copies of building interiors through automated image capture and processing. Instead of relying on manual textual descriptions that may be inaccurate, the system captures actual images and uses computational methods to extract precise layout and attribute information directly from the visual data

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The system uses machine learning models that can be trained and improved through feedback loops. The automated image processing and layout extraction algorithms learn from captured images and can be refined to improve accuracy, with the ability to correct and update information based on new image data

Inventive Principle:
Principle #23Feedback

3Productivity

If automated image analysis is used to generate building videos, then building identification and navigation are improved, but computing power and time are required to process images

Engineering Contradiction:
Improvebuilding identification speedVSAvoidcomputing power consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent divides the image processing task into segments: initial automated analysis to extract key layout information and generate basic building representations, then selective processing of specific areas or features. This segmentation allows faster initial identification while reducing overall computational load compared to processing entire high-resolution images

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs partial processing of image data by extracting only the essential layout and attribute information needed for building identification and navigation. Rather than fully processing all image details, it focuses on critical features, reducing computing power requirements while maintaining effectiveness

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentEP4328866B1Automated generation and use of building videos with accompanying narration from analysis of acquired images and other building information
Publication Date: 2026.03.25 MFTB HOLDCO INC
  • EP4328866B1 patent drawingFigure 1A
  • EP4328866B1 patent drawingFigure 1B
  • EP4328866B1 patent drawingFigure 2A

AI summary

Techniques are described for using computing devices to perform automated operations for automatically generating information about attributes of buildings from automated analysis of building information that includes floor plans and acquired building images and to subsequently using the generated building information in one or more further automated manners. In some situations, such automated generation of building information includes automatically determining objects in a building and other attributes of the building, and automatically generating descriptions about the determined building attributes. Information about such determined attributes and generated descriptions may be used in various automated manners, including for updating and/or validating information in existing building descriptions, for determining matching buildings that have similarities to indicated building descriptions or other specified criteria, for controlling device navigation (e.g., autonomous vehicles), for display on client devices in corresponding graphical user interfaces, etc.