Head Mounted Display Image Orientation Control
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Solution Overview
Problem
Head-mounted displays (HMDs) face challenges in storing images captured while rotated, as existing methods either fail to compensate for rotation or require user intervention to restore images to their original orientation, lacking a seamless solution for both capturing and reviewing images in various orientations.
Innovation Solution
The HMD system includes a processor that determines capturing modes based on the presence or absence of an image preview interface, storing images without rotation compensation when the preview is provided and applying rotation compensation when it is not, while allowing users to select restoration options post-capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If rotation compensation is applied to captured images, then images are stored in consistent orientation, but processing time and computational resources increase
Solution Approach 1:
The system determines the capturing mode (first mode with preview interface or second mode without preview interface) before capturing the image, and pre-determines whether rotation compensation should be applied based on this mode. This preliminary determination avoids post-capture decision-making and enables efficient processing by applying rotation compensation only when necessary (in the second mode), thereby reducing overall processing time while maintaining orientation consistency when needed.
2Ease of operation
If rotation compensation is automatically applied, then image orientation is corrected, but user control over the original captured orientation is lost
Solution Approach 1:
The system dynamically adjusts the image processing behavior based on the capturing mode. In the first capturing mode (with preview interface), rotation compensation is not applied, preserving the original captured orientation and giving users control over the natural perspective. In the second capturing mode (without preview interface), rotation compensation is automatically applied to ensure consistent orientation. This dynamic adaptation allows the system to provide both automatic correction and user control depending on the operational context.
3Measurement precision
If image preview interface is provided during capture, then user can verify image orientation, but device complexity and power consumption increase
Solution Approach 1:
The capturing functionality is segmented into two distinct modes: the first capturing mode with preview interface for situations where orientation verification is needed, and the second capturing mode without preview interface for situations where simplicity and power efficiency are prioritized. This segmentation allows users to select the appropriate mode based on their needs, reducing the overall system complexity by making the preview functionality optional rather than mandatory in all capturing scenarios.
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 ensures that images are stored and displayed in a consistent orientation, enhancing user convenience by automatically handling rotation compensation based on capturing mode and user input, thereby improving the usability of HMDs in capturing and reviewing images.
Implementation Method 1
an angle sensing unit configured to sense a rotation angle of the camera unit
Data Source
AI summary
The present specification relates to a head mounted display and a method of controlling therefor, and more particularly, when a user wearing the head mounted display captures an image, a method of storing a captured image according to whether a preview via an image preview interface exists or not.