AR Pose Guidance for Accurate Body Parameter Detection
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Solution Overview
Problem
Existing augmented reality (AR) and virtual reality (VR) systems face challenges in accurately calculating user body size, especially when users wear loose clothing, and in providing a realistic virtual fitting experience due to environmental factors like lighting and camera positioning.
Innovation Solution
A multimedia device uses a combination of 2D image and 3D depth information from cameras, such as time-of-flight sensors, to estimate body-related parameters through statistical learning, generating a 3D avatar for a more accurate virtual fitting service and guiding users on potential issues with clothing fit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If body size is calculated using only 2D camera images, then the system is simple to implement, but the calculation accuracy deteriorates especially when users wear loose clothes
Solution Approach 1:
The patent combines 2D camera images with 3D depth information from time-of-flight sensors to create a hybrid measurement system. This merging of different data types allows the system to maintain simplicity while significantly improving body size calculation accuracy, especially for users wearing loose clothing where 2D images alone fail.
Solution Approach 2:
The patent transitions from 2D image-based measurement to 3D depth-aware measurement by incorporating time-of-flight sensor data. This dimensional enhancement provides accurate body measurements even when clothing creates ambiguity in 2D images, resolving the accuracy problem without sacrificing system simplicity.
2Device complexity
If virtual fitting service displays clothes on 2D virtual avatar in overlay format, then the display is simple, but it is difficult to check actual wearing comfort and fit
Solution Approach 1:
The patent renders clothes on 3D virtual avatars instead of 2D overlays. This dimensional transformation allows users to view clothing from multiple angles and assess fit and comfort more realistically, significantly improving reliability of wearing comfort assessment while maintaining reasonable display complexity.
3Loss of time
If only single pose capturing is used, then the capturing process is quick, but the body parameter detection accuracy is insufficient
Solution Approach 1:
The patent guides users to assume specific standardized poses before capturing images. This preliminary action of pose guidance ensures that the single captured image contains sufficient information for accurate body parameter detection, resolving the accuracy problem without extending the capturing process duration.
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 approach enables a more precise detection of body parameters and provides a more realistic virtual fitting experience by accurately simulating how clothes would fit on the user, addressing the inaccuracies in existing systems.
Implementation Method 1
a time of flight (TOF) sensor
Data Source
AI summary
An extended reality (XR) device and a method for controlling the same are disclosed. The XR device is applicable to 5G communication technology, robot technology, autonomous driving technology, and Artificial Intelligence (AI) technology, and a method for controlling the same.