Head-Mounted Display Guide Graphic for Imaging Range Visualization
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Solution Overview
Problem
Users face difficulty in accurately determining the imaging range of an imaging module, which hinders the smooth reading of measurement values in devices utilizing imaging modules, such as cameras, due to unclear visualization of the imaging area.
Innovation Solution
An imaging assisting device with a head-mounted display unit and control unit that displays a guide graphic within the user's field of view, indicating the imaging range, using sensors to adjust the graphic's position based on the imaging module's position, attitude, and angle of view, ensuring the graphic remains visible at constant coordinates in a virtual coordinate system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an imaging module is used to capture images for measurement data collection, then measurement values can be read from captured images, but users cannot accurately grasp the imaging range, causing failure to smoothly read measurement values
Solution Approach 1:
The patent introduces a guide graphic as an intermediary visual element that mediates between the imaging module's functional range and the user's perception. The guide graphic is superimposed on the real space through a head-mounted display, serving as a visual mediator that clearly delineates the imaging range boundaries without obstructing the actual imaging function. This resolves the contradiction by providing explicit visual guidance while maintaining the imaging module's operational integrity.
Solution Approach 2:
The patent transitions the imaging range information from a two-dimensional image plane to a three-dimensional spatial representation by projecting the guide graphic into the user's field of view through the head-mounted display. This dimensional transformation allows users to perceive the imaging range in the same spatial dimension as the actual scene, enabling accurate positioning of objects within the imaging range while maintaining natural viewing conditions.
2Ease of operation
If a head-mounted display with guide graphic is used to indicate imaging range, then users can easily recognize the imaging range, but the device complexity increases
Solution Approach 1:
The head-mounted display serves multiple functions simultaneously: it displays the guide graphic indicating the imaging range, provides navigation information to guide object positioning, and can display alarm information when objects are outside the imaging range. This multi-functionality reduces the need for separate devices for each function, thereby managing device complexity while enhancing ease of operation through integrated assistance.
Solution Approach 2:
The system automatically detects the position and orientation of the imaging module and dynamically adjusts the guide graphic's position and orientation in the virtual space to match. This self-adjusting mechanism eliminates the need for manual calibration or complex user setup procedures, allowing the device to provide accurate imaging range indication automatically, thus managing complexity through automation rather than user intervention.
Data Source
AI summary
An imaging assisting device includes a head-mounted display unit worn to a head of a user, and a control unit configured to control the head-mounted display unit. The head-mounted display unit includes a frame worn to the head of the user and a display screen of transmissive type supported by the frame at a position where the display screen covers a field of view of the user in a state that the frame is worn by the user, the display screen being configured to display an object defined in a virtual space such that the object is superimposed on a real space. The control unit displays a guide graphic on the display screen as an object defined in the virtual space, the guide graphic indicating an imaging range of an imaging module.