Wearable Display Region Tracking with Deviation Feedback
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Solution Overview
Problem
Wearable image display devices, such as smart glasses, face challenges in continuously capturing a specific region or object while the user's line of sight changes, as existing systems struggle to maintain focus on the desired subject due to motion and changes in the view angle.
Innovation Solution
An image display device with a wearable body, a display unit, a capture unit, and a controller that allows users to set and adjust a specific region for video capture, displaying graphic objects to indicate the region's position and extent within the view angle, suspending capture when the region deviates beyond a reference range, and providing alarm and editing features for meta data storage and editing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user moves or changes line of sight while wearing smart glasses, then the user can naturally view the environment, but the video capture cannot continuously track the desired subject
Solution Approach 1:
The system continuously monitors the position of the first graphic object relative to the view angle and provides feedback through a second graphic object that indicates the extent of deviation. This feedback loop enables the system to detect when the desired region moves out of the capture area and notifies the user, allowing the user to adjust their position or the capture parameters to maintain continuous capture of the subject.
Solution Approach 2:
The second graphic object serves as an intermediary between the capture system and the user. It visually represents the deviation status and guides the user's actions to restore proper framing, acting as a mediator that translates system state into user-understandable information without requiring direct system intervention.
2Manufacturing precision
If the system suspends capture when the region deviates from view angle, then capture quality is maintained, but capture time is lost
Solution Approach 1:
Instead of completely suspending capture when deviation occurs, the system provides partial action by displaying the second graphic object that indicates the extent of deviation. This allows the user to make informed decisions about whether to adjust their position or accept the deviation, rather than forcing a complete capture interruption. The system maintains capture operation while providing guidance for optimization.
3Ease of operation
If the system provides real-time deviation feedback, then the user can adjust positioning, but device complexity increases
Solution Approach 1:
The system creates a simplified visual copy of the deviation information through the second graphic object, which represents the position and extent of the first graphic object's deviation from the view angle. This graphical representation provides intuitive positioning feedback without requiring complex control mechanisms, reducing system complexity while maintaining ease of operation.
Data Source
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AI summary
An image display device (100) including a body (101) configured to be wearable on a specific portion of a human body; a camera (121) coupled to the body (101) and configured to capture a video; a display unit (151) coupled to the body (101) and configured to display a preview screen for capturing the video; and a controller (180) configured to receive a first input for setting a first region on the preview screen, display a first graphic object indicating the set first region on the display unit (151), capture the video for the first region according to a capture signal, and when a viewing angle of the preview screen including the set first region deviates more than a predetermined reference range, suspend capturing the video and display a second graphic object indicating an extent of the deviation.