AR Map Perception Inclination Adjustment for Navigation

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Solution Overview

Problem

Current augmented reality (AR) navigation systems fail to effectively adjust the perceived inclination of maps on devices to match the user's physical orientation, leading to disorientation and confusion when exploring AR environments.

Innovation Solution

The method involves continuously monitoring the physical inclination of a device using sensors like image sensors and inertial measurement units, adjusting the perception inclination of the map to match the physical inclination, and maintaining a constant perception inclination when the physical inclination exceeds a threshold, ensuring that the forward direction is consistently represented on the map regardless of the device's orientation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the map perception inclination is adjusted to match the device's physical inclination, then the user's spatial orientation and correlation between map directions and physical movements is improved, but the system complexity increases due to continuous sensor monitoring and dynamic rendering adjustments

Engineering Contradiction:
Improveuser navigationVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system continuously monitors the device's physical inclination using sensors (accelerometer, gyroscope) and uses this feedback to dynamically adjust the map's perception inclination in real-time, creating a closed-loop system that maintains accurate spatial correlation between the map and the physical environment

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system automatically adjusts the map perception inclination based on sensor data without requiring manual user input, and autonomously maintains the semantic significance of direction by comparing forward directions in the physical environment with corresponding map directions

Inventive Principle:
Principle #25Self-service

2Measurement precision

If the perception inclination is continuously adjusted based on physical inclination, then the directional correlation accuracy is improved, but the processing energy consumption increases

Engineering Contradiction:
Improvedirectional correlation accuracyVSAvoidprocessing energy consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The system performs perception inclination adjustments at periodic intervals rather than continuously, updating the map rendering based on sampled sensor data, which reduces processing energy consumption while maintaining adequate directional correlation accuracy for navigation

Inventive Principle:
Principle #19Periodic action

3Stability of the object's composition

If the forward direction is consistently represented on the map regardless of device orientation, then the semantic significance of direction is maintained, but the map rendering complexity increases

Engineering Contradiction:
Improvesemantic significance of directionVSAvoidmap rendering complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The system dynamically adjusts the map's perception inclination based on the device's physical inclination to maintain the semantic significance of direction, where the forward direction on the map consistently corresponds to the forward direction in the physical environment regardless of how the user holds the device

Inventive Principle:
Principle #15Dynamics

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

This solution enhances user navigation in AR environments by maintaining a semantic significance of direction, allowing users to correlate map directions with physical environment movements, reducing disorientation and improving the immersive experience.

Implementation Method 1

determining a physical inclination of the device

Methodology Applied
Scientific EffectGravitation: Gravitation

Implementation Method 2

determining the physical inclination can include using an image sensor of the device

Methodology Applied
Scientific EffectAccelerometer: Accelerometer

Implementation Method 3

determining the physical inclination can include using an image sensor of the device

Methodology Applied
Scientific EffectImage sensor detection: Photography

Data Source

PatentEP3714354B1Navigation in augmented reality environment
Publication Date: 2022.06.22 GOOGLE LLC
  • EP3714354B1 patent drawingFigure 1
  • EP3714354B1 patent drawingFigure 2~3
  • EP3714354B1 patent drawingFigure 4~5B

AI summary

A method includes: receiving, in a device, data defining an augmented reality (AR) environment, the data specifying a location of a first AR object in the AR environment; determining a physical inclination of the device; assigning a perception inclination to a map of the AR environment, the perception inclination based on the determined physical inclination; and triggering rendering of the map and an aspect of the AR environment on a display of the device, wherein the location of the first AR object is marked on the map and the map appears to have the perception inclination with regard to the display.