Integrated Camera Tracking for Real-Time Jaw Motion Visualization
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Solution Overview
Problem
Existing methods for tracking and visualizing jaw motion are time-consuming and laborious, requiring separate apparatus and operations, and do not allow for real-time adjustments or additional data collection without reattaching markers and re-recording movements.
Innovation Solution
Integrating a camera system with a medical x-ray imaging apparatus to acquire both x-ray image data and jaw motion data simultaneously, using image processing to visualize jaw motion in real-time, with tracking items attached to the jaw and upper anatomy, allowing for continuous monitoring and data collection during imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate apparatus and operations are used for attaching markers, generating jaw movements, detecting movements, and visualizing models, then each operation can be performed with specialized equipment, but the overall workflow becomes time-consuming and laborious
Solution Approach 1:
The patent combines multiple separate operations (marker attachment, jaw movement generation, motion detection, and 3D model visualization) into an integrated workflow where all operations are performed simultaneously using a unified system with cameras mounted on the CT scanner, eliminating sequential processing delays
Solution Approach 2:
The imaging apparatus is equipped with multiple cameras that serve dual purposes: capturing both the tracking markers on the patient's jaw and the anatomical reference objects in the CT scan field, allowing one system to perform multiple measurement and visualization functions
2Manufacturing precision
If modeling of jaw movements is visualized as a separate process afterwards, then the visualization can be processed carefully, but additional movement information cannot be captured until the next recording session
Solution Approach 1:
The system continuously captures jaw motion data and updates the 3D digital model in real-time during the imaging session, allowing the visualization process to continue uninterrupted while the patient performs various jaw movements, rather than stopping for separate modeling sessions
Solution Approach 2:
The system provides real-time feedback by displaying the evolving 3D model of jaw movements on a monitor during the imaging session, allowing clinicians to immediately assess whether additional movement types or ranges are needed and adjust the recording accordingly
3Measurement precision
If markers are attached to anatomy for tracking, then jaw motion can be detected, but the process requires reattaching markers and re-recording movements for additional data
Solution Approach 1:
Tracking markers are attached to the patient's jaw and anatomical reference objects are positioned in the CT scan field before the imaging session begins, allowing all necessary motion tracking infrastructure to be prepared in advance so that multiple types of jaw movements can be recorded continuously without repeated setup
Solution Approach 2:
The system is designed to dynamically capture multiple types of jaw movements (opening, closing, protrusion, lateral motion) in a single continuous recording session, adapting to different movement patterns as they occur rather than requiring separate static recordings for each movement type
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
Streamlines the workflow by enabling real-time visualization and adjustment of jaw motion models, eliminating the need for reattaching markers and re-recording movements, and allowing for immediate correction or additional data collection during the imaging process.
Implementation Method 1
providing at least one camera arranged in physical connection with a CT imaging apparatus... A series of images of the tracking items using the at least one camera are captured
Implementation Method 2
CT reconstruction of hard tissue of anatomy of the person is generated... acquire image information for generating surface models of cranial hard tissue anatomies
Implementation Method 3
CT reconstruction of hard tissue of anatomy of the person is generated
Data Source
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AI summary
The invention relates to tracking motion of a patient's jaw, wherein motion of a tracking item (50) which represents motion of the jaw is followed by at least one camera (22) arranged to a medical x-ray imaging apparatus (10) and wherein the motion detected by the at least one camera (22) is applied on a digital model depicting hard tissue of the jaw. The moving digital model of the hard tissue of the jaw thus generated is shown on a display (31 ) to visualize movement of the hard tissue.