Head-Mounted Display Mode Switching for Higher-Quality Image Capture
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Solution Overview
Problem
Existing head-mounted display (HMD) technologies fail to ensure high image quality during image capture, such as still image recording, due to limitations in imaging units and processing.
Innovation Solution
A control device for HMDs with dual imaging units and displays, capable of switching between modes to enhance image quality by stopping one sensor and increasing the frame rate or exposure of the other, or using High Dynamic Range (HDR) compositing to improve image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If both image sensors operate simultaneously to capture images for both eyes, then the HMD can maintain stereoscopic vision and real-time display, but the image quality captured by each sensor deteriorates due to shared processing resources and simultaneous operation
Solution Approach 1:
The system dynamically switches between different operational modes (first mode where both sensors operate, second mode where one sensor operates at higher frame rate). The control unit determines which mode to use based on captured image characteristics, allowing the system to adapt between maintaining stereoscopic vision and achieving high image quality depending on the capture scenario.
Solution Approach 2:
The system changes operational parameters by switching between modes that affect sensor frame rates and processing priorities. In the second mode, the frame rate of the active sensor is increased while the other sensor is stopped, fundamentally changing the capture parameters to prioritize image quality over simultaneous dual-eye capture.
2Measurement precision
If the frame rate of image capture is increased to improve image quality, then image clarity improves, but the ability to capture simultaneous images for both eyes is reduced
Solution Approach 1:
The system provides dynamic adaptability by switching between capture modes based on the specific capture requirements. The control unit determines which mode to use based on image characteristics, allowing the system to adapt between maintaining stereoscopic vision and achieving high image quality depending on the capture scenario.
Solution Approach 2:
The capture function is segmented into two independent modes: first mode for simultaneous dual-eye capture and second mode for single-eye high-quality capture. This segmentation allows the system to choose the appropriate mode based on whether stereoscopic vision or image quality is the priority, effectively addressing the adaptability challenge.
3Reliability
If one image sensor is stopped to improve the frame rate and image quality of the other sensor, then image quality improves, but the system complexity for mode switching and control increases
Solution Approach 1:
The control unit automatically determines which sensor to activate and which to stop based on the captured image characteristics and pre-defined conditions. This self-service approach reduces the need for complex user input and manual mode selection, simplifying the control interface while maintaining the ability to switch between quality-optimized modes.
Data Source
AI summary
A control device according to the present disclosure includes one or more processors and/or circuitry configured to: execute setting processing of setting any of a plurality of modes including a first mode and a second mode, and execute control processing of performing control, in the first mode, to display an image captured by a first image sensor with a first image quality on a first display and to display an image captured by a second image sensor with the first image quality on a second display, and performing control, in the second mode, to stop one image sensor of the first image sensor and the second image sensor and to display an image captured by an other image sensor with a second image quality higher than the first image quality on the first display or the second display.