3D Wrist Tracking Without Physical Indexing Wristbands
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Solution Overview
Problem
Existing online shopping experiences lack the ability for users to virtually try on physical items, such as wristwatches, without the need for physical indexing wristbands, which can be inconvenient and prone to errors.
Innovation Solution
A computing system captures video of a user's wrist, determines 3D parameters using image processing, and generates an augmented reality interface to overlay virtual items that match the orientation and rotation of the user's wrist in real-time, eliminating the need for physical indexing wristbands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If physical indexing wristbands are used for virtual item try-on, then the orientation and rotation of virtual items can be determined, but the process becomes inconvenient and error-prone due to physical distribution requirements and potential misuse
Solution Approach 1:
The patent extracts and eliminates the physical wristband component from the system. Instead of requiring users to wear physical indexing wristbands, the system uses image processing and machine learning to directly detect wrist orientation and rotation from video frames, thereby removing the inconvenient physical distribution and wear requirements while maintaining the ability to determine virtual item orientation
Solution Approach 2:
The patent creates a virtual copy of the wristband function through computer vision technology. Rather than using physical indexing marks on wristbands, the system captures video of the user's wrist and uses image processing algorithms to generate virtual orientation and rotation data, achieving the same functional outcome without the physical constraints
2Adaptability or versatility
If physical indexing wristbands are provided through mail or catalog inserts, then virtual item try-on is enabled, but the device complexity and distribution cost increase
Solution Approach 1:
The patent replaces the mechanical physical wristband system with an optical/electronic system. Instead of distributing physical indexing wristbands through mail or catalogs, the system uses cameras to capture wrist video and applies image processing algorithms to determine orientation and rotation, eliminating the need for physical distribution channels and reducing overall system complexity
Solution Approach 2:
The system enables self-service by automatically detecting wrist orientation and rotation without requiring users to wear or handle physical wristbands. The image processing system autonomously captures and analyzes wrist movements from video frames, providing virtual item try-on functionality that users can access independently without physical assistance
3Reliability
If users wear indexed wristbands incorrectly or use damaged wristbands, then the virtual item try-on fails, but no alternative method exists to verify wristband proper usage
Solution Approach 1:
The patent implements continuous feedback through real-time image processing. The system captures video frames of the user's wrist and continuously analyzes orientation and rotation data, providing immediate feedback on wrist position and orientation. This enables the system to adapt to user movements and maintain reliable virtual item try-on without requiring users to manually ensure proper wristband usage
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
Enables users to interactively see how virtual items would look on their wrist without physical wristbands, improving the online shopping experience by enhancing realism and convenience.
Implementation Method 1
determines 3D parameters of the user's wrist using image processing
Data Source
AI summary
A wrist tracking process is provided for use in Augmented Reality (AR) applications. A computing system captures video frame tracking data of a wrist of a user and generates 3D parameter data of the user's wrist based on the video frame tracking data. The computing system generates 3D render data of a virtual item based on the 3D parameter data of the user's wrist, and 3D model data of a physical item represented by the virtual item. The computing system generates video frame AR data based on the 3D render data and the video frame tracking data. The computing system provides an AR user interface to the user based on the video frame AR data.