Pedestrian Navigation Camera Orientation Feedback
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Solution Overview
Problem
Pedestrian navigation systems face challenges in displaying guide routes on a peripheral image captured by a camera, as the orientation of the camera can vary, making it difficult to ensure the guide route is included in the image, unlike fixed-forward vehicle-mounted navigation systems.
Innovation Solution
Incorporating orientation detection means, such as magnetic bearing and tilt sensors, into the mobile terminal device to detect its orientation and adjust the display of the guide route image, ensuring it is displayed correctly even when the camera is not oriented in the forward direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the camera orientation is allowed to vary freely for user convenience, then the ease of operation is improved, but the guide route may not be included in the captured image
Solution Approach 1:
The system provides feedback by detecting the camera orientation using orientation detection means and determining whether the guide route is included in the captured image. When the guide route is not visible, the system displays an imaging direction guide image to guide the user in correcting the camera orientation, creating a closed-loop feedback system that ensures reliable guide route visibility while maintaining user convenience.
2Measurement precision
If the system provides detailed orientation correction guidance, then the navigation accuracy is improved, but the device complexity increases
Solution Approach 1:
The system uses an imaging direction guide image as an intermediary element that translates complex orientation data into simple visual guidance. Instead of directly processing and displaying complex orientation angles and coordinates, the system renders a intuitive guide image that shows the direction in which the user should point the camera, simplifying the interface while maintaining high navigation accuracy.
3Ease of operation
If the system automatically adjusts the display based on camera orientation, then the ease of operation is improved, but additional sensors and processing are required
Solution Approach 1:
The orientation detection means serves multiple functions: it detects the camera orientation angle, determines whether the guide route is included in the captured image, and provides the basis for displaying the imaging direction guide image. This multi-functional use of the orientation detection capability reduces the need for separate specialized sensors while achieving automatic adjustment for improved ease of operation.
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
Enables the user to correct the orientation of the mobile terminal device so that the guide route is displayed on the peripheral image by providing guidance on the necessary imaging direction, improving navigation accuracy and usability.
Implementation Method 1
orientation detection means, such as magnetic bearing and tilt sensors
Implementation Method 2
orientation detection means, such as magnetic bearing and tilt sensors
Data Source
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AI summary
Provided is a navigation system comprising a route searching server and a mobile terminal device. The mobile terminal device includes posture detecting means for detecting the posture of the mobile terminal device at the time when imaging means took a peripheral image, and image layout means for determining the display position of a guide route or a proceeding direction guide image on the basis of the posture of the mobile terminal device detected by the posture detecting means. The mobile terminal device stores the guide route distributed from the route searching server. In case the image layout means discriminates that the guide route is not contained in the peripheral image displayed in display means, drawing control means displays an imaging direction guide image for guiding the direction, in which the imaging means takes the image, on the peripheral image.