AR Foot Image Capture With Alignment Guides for Precise Shoe Fitting
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Solution Overview
Problem
Existing methods for capturing foot images in shoe fitting, especially in the absence of physical fitting, are inefficient and lack intuitive guidance for obtaining accurate images from specific perspectives using augmented reality.
Innovation Solution
A method and mobile device utilizing a processor, camera, and display to generate an augmented reality space, align objects, and capture images of a foot by detecting reference objects, generating alignment objects, and guiding the user to position the device for optimal image capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional image capture methods are used for foot measurement, then the process is simple, but the accuracy of capturing foot images from specific perspectives is poor
Solution Approach 1:
The patent introduces augmented reality alignment objects (virtual guides) as intermediaries between the user and the camera. These AR objects provide visual feedback and guidance to help users position the camera at the correct angle and distance for capturing foot images from specific perspectives, thereby improving measurement accuracy without requiring complex manual adjustments
Solution Approach 2:
The system implements real-time feedback by displaying AR alignment objects that move and change based on the camera's position and orientation. When the camera achieves the correct positioning for capturing foot images from specific perspectives, the AR objects provide visual confirmation, enabling users to quickly and accurately achieve the required image capture angles
2Productivity
If manual positioning methods are used for camera alignment, then the setup is simple, but the efficiency of capturing accurate foot images is low
Solution Approach 1:
The AR alignment objects provide real-time visual feedback that instantly responds to camera movement, allowing users to achieve proper positioning much faster than manual trial-and-error methods. The feedback mechanism reduces the time required for alignment by clearly indicating when the correct position is reached
Solution Approach 2:
The system performs automatic detection and analysis of foot images once the camera is positioned, reducing the need for manual intervention in the image capture process. The AR guidance system also adapts to user actions in real-time, making the system more efficient without requiring additional setup time
3Measurement precision
If AR alignment objects are introduced to guide camera positioning, then the accuracy of image capture from specific perspectives is improved, but the device complexity increases
Solution Approach 1:
The patent uses virtual AR copies of alignment objects instead of physical alignment tools. These digital representations are rendered on the device display and provide all the guidance functions without requiring additional physical components, thus improving accuracy while minimizing the increase in physical device complexity
Solution Approach 2:
The mobile device's existing display and processing capabilities are utilized to run the AR alignment system, making the camera device itself serve multiple functions (photography, AR rendering, real-time processing) without requiring separate dedicated alignment devices. This reduces overall system complexity by consolidating functions into a single multi-functional device
Data Source
AI summary
A method for capturing an image of a foot form a specific perspective using augmented reality (AR) includes generating an AR space based on a set of dimensions of a reference object, generating and displaying an AR foot placement object near the reference object, when a foot is on the AR foot placement object, generating and displaying an AR alignment object, a two-dimensional (2D) alignment object, an moving alignment object and a stationary alignment object; and when the 2D alignment object encloses the AR alignment object and the stationary alignment object encloses the moving alignment object, capturing an image related to the foot.