AR Object Annotation Facade Selection for Clearer 3D Labels

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing augmented and virtual reality systems provide static three-dimensional building annotations with poor display effects.

Innovation Solution

Select an annotation facade based on the projection of visible facades on a display interface, determining the visible facade with the largest area to present annotation information, and project the annotation information in a three-dimensional model on a parallel plane to enhance the display effect.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a static three-dimensional building annotation is used, then the annotation can be displayed on the building model, but the display effect is poor

Engineering Contradiction:

Improveannotation display effectVSAvoidannotation facade selection

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent applies dynamics by transitioning from a static annotation display to a dynamic selection mechanism. The system dynamically determines which building facade to display annotation information on by calculating projection areas of visible facades and selecting the facade with the largest projection area. This dynamic adaptation to different viewing angles and scenes significantly improves the display effect and user experience.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of facade selection from fixed to variable based on projection area calculations. By computing the projection area of each visible facade and selecting the one with the maximum projection area, the system adapts the annotation display to the current scene and viewing conditions, thereby improving display effectiveness.

Inventive Principle:

Principle #35Parameter changes

2Ease of manufacture

If the visible facade with the largest projection area is selected for annotation, then the display effect is improved, but the calculation complexity increases

Engineering Contradiction:

Improvedisplay effectVSAvoidfacade projection calculation

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent applies local quality by focusing the calculation on only the visible facades of the building model rather than all facades. The system calculates projection areas locally for each visible facade and selects the maximum, which reduces computational complexity compared to processing all building surfaces while still achieving optimal display效果.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12505624B2Method and apparatus for presenting object annotation information, electronic device, and storage medium

Publication Date: 2025.12.23 HUAWEI TECH CO LTD

AI summary

This application relates to methods and apparatuses for presenting object annotation information. An example method includes: obtaining a target object in a specified scene, where the specified scene is a scene presented at a target location; and presenting annotation information of the target object on an annotation facade that is of the target object and that is presented on a display interface, where the annotation facade is determined from at least two visible facades of the target object based on projection regions that are for the at least two visible facades and that are presented on the display interface, and the visible facade is a facade visible to the target location in exterior facades of the target object.