Head-Mounted Display Zoom Cameras for Hands-Free Magnification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing devices for magnifying objects, such as telescopes and presbyopic glasses, are cumbersome and lack flexibility in magnification adjustment, limiting their use in various environments and requiring both hands for operation.
Innovation Solution
A head-mounted display device equipped with one or two zoomable cameras and a display that allows users to adjust magnification independently for each eye, performing image processing to enhance clarity and stereoscopic perception, and includes image stabilization and enhancement features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a telescope is used to magnify distant objects, then the human eye can clearly see distant objects, but the device requires both hands to hold and cannot view nearby objects
Solution Approach 1:
The patent replaces traditional optical telescopes with a head-mounted display system that uses cameras, processors, and displays to achieve magnification. The system captures images with zoomable cameras, processes them through image processing units, and displays enlarged versions on display units positioned near the user's eyes, eliminating the need for hand-held optical instruments
Solution Approach 2:
The patent transitions from optical magnification in physical space to digital magnification through image processing. By capturing images and then digitally enlarging them through processing and display, the system achieves magnification without the physical constraints of traditional optical devices, allowing hands-free operation
2Measurement precision
If a magnifier or presbyopic glasses is used to magnify subtle objects, then the human eye can recognize subtle objects, but the device has fixed magnification and cannot meet multiple application environment requirements
Solution Approach 1:
The patent employs zoomable cameras that can dynamically adjust their focal length and magnification ratio. The image processing unit can also dynamically adjust processing parameters such as enlargement ratio and sharpness enhancement. This dynamic adjustability allows the system to adapt to different magnification needs across various application environments, unlike fixed magnification optical devices
Solution Approach 2:
The head-mounted display system serves multiple functions: it can magnify distant objects, enhance subtle details, and adapt to different viewing scenarios. The system combines camera capture, variable zoom capability, image processing, and display functions to provide universal magnification solutions for various applications including distant object observation, fine detail examination, and general viewing enhancement
3Measurement precision
If optical zoom is used to achieve magnification, then the device structure becomes complex, but adding more zoom capability increases device complexity
Solution Approach 1:
The patent replaces complex optical zoom systems with a digital image processing approach. Instead of using multiple lenses and mechanical zoom components, the system uses cameras with variable focal length, captures images, and then digitally enlarges and enhances them through processing algorithms, significantly simplifying the overall device structure while maintaining or improving magnification capability
Solution Approach 2:
The system creates a digital copy of the captured image and applies processing algorithms to enlarge and enhance the copied image data. This digital copying and processing approach avoids the need for complex optical zoom mechanisms, as the magnification is achieved through software-based image reconstruction and enhancement rather than physical optical components
Data Source
AI summary
An image processing method, a head-mounted display device, and a medium are disclosed, and relate to the field of image processing technologies. The head-mounted display device includes one or two zoomable cameras (120). A user can adjust a magnification, that is, a zoom ratio, based on a requirement. When the user cannot clearly see a distant object, the user adjusts the magnification via the zoomable camera (120), and then performs image processing, for example, super-resolution processing, image enhancement processing, or image stabilization processing on a magnified part, so that the user can see the distant object without an external device. In addition, the user does not need to hold the head-mounted display device with both hands. This can improve portability. In addition, an IMU (180) in the head-mounted display device is used to perform image stabilization processing when an image is magnified, and no additional component needs to be added.