Intraoral Camera Orientation Signal Processing
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Solution Overview
Problem
The accuracy of signal processing in intraoral camera systems is not satisfactory, necessitating an improvement in this area.
Innovation Solution
An intraoral camera system is designed with an imaging unit, a sensor to detect the orientation of the unit, a signal processor that performs signal processing based on the detected orientation, and a display to show the image data. The signal processor sets an initial orientation and treats a specific direction within this orientation as the vertically upward direction for enhanced accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If signal processing is performed using the orientation of the imaging unit, then the functionality and automation of the system is improved, but the accuracy of signal processing deteriorates
Solution Approach 1:
The system performs preliminary action by obtaining the initial orientation of the imaging unit before actual signal processing. This initial orientation is used as a reference to correctly interpret the orientation data from the sensor during signal processing, thereby improving accuracy while maintaining automation.
Solution Approach 2:
The system changes the parameter interpretation by establishing a predetermined relationship between the initial orientation and the vertical direction. By treating the first direction from the handle toward the head in the initial orientation as the vertically upward direction, the system correctly adjusts orientation parameters to improve signal processing accuracy.
2Ease of operation
If the imaging unit is held in different postures, then the ease of operation is improved, but the accuracy of signal processing deteriorates
Solution Approach 1:
The system adapts to different postures dynamically by using the sensor to detect the actual orientation of the imaging unit in real-time. The signal processor then adjusts the orientation data based on the detected posture, allowing the user to hold the device in various positions while maintaining processing accuracy.
Solution Approach 2:
The system implements feedback by using the sensor to continuously monitor the orientation of the imaging unit and providing this information back to the signal processor. This feedback loop enables the system to compensate for different postures and maintain accurate signal processing regardless of how the user holds the device.
Data Source
AI summary
An intraoral camera system includes an imaging unit that includes a handle, a head including an image sensor for generating image data, and a neck connecting the handle and the head and generates the image data, a position sensor that detects the orientation of the imaging unit; a signal processor that performs signal processing using the orientation of the imaging unit detected by the position sensor, and a display that displays the image data. The signal processor obtains the initial orientation of the imaging unit which is a predetermined orientation of the imaging unit, and performs the signal processing by treating a first direction from the handle toward the head in the initial orientation as a second direction that is a vertically upward direction parallel to a vertical axis.