Ultrasonic Probe Position Correction for 3D Image Accuracy
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Solution Overview
Problem
Current ultrasonic diagnostic apparatuses face challenges in accurately correcting the positional data of 2D image data, which affects the quality of reconstructed 3D images, leading to distortions and reduced diagnostic performance.
Innovation Solution
The apparatus includes a configuration with a transmitting and receiving circuit, a 2D image generation circuit, a position data acquisition circuit, an associating circuit, and a correction circuit that associates and corrects positional data using similarity measures and image processing techniques like histogram conversion, speckle reduction, and structure emphasizing to improve position adjustment accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple 2D image data are arranged based on position data to generate 3D image data, then three-dimensional reconstruction capability is improved, but position data accuracy deteriorates leading to image distortion
Solution Approach 1:
The system performs iterative optimization where the 3D reconstruction result feeds back into refining position data. The optimization unit uses the arranged 2D image data and position data to calculate corrected position data through similarity measures, creating a feedback loop that continuously improves position accuracy based on reconstruction quality
Solution Approach 2:
The patent replaces direct mechanical/physical position measurement with computational optimization. Instead of relying solely on hardware position sensors, the system uses image-based similarity measures and optimization algorithms to computationally determine accurate position data, substituting physical measurement with mathematical calculation
2Measurement precision
If position data is corrected using optimization processing, then position data accuracy is improved, but processing time increases
Solution Approach 1:
The system performs preliminary arrangement of 2D image data based on initial position data before optimization. This preliminary organization structures the data in advance, making the subsequent optimization process more efficient by reducing the search space and enabling faster convergence to accurate position data
Solution Approach 2:
The optimization unit adjusts optimization parameters dynamically during processing. By changing parameters such as similarity measure thresholds and iteration limits based on intermediate results, the system balances accuracy requirements with processing time constraints, stopping optimization when sufficient accuracy is achieved
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
This configuration enables precise correction of positional data, reducing distortions in 3D images and enhancing diagnostic performance by improving the accuracy of position adjustment and image processing, resulting in higher-quality 3D image data.
Implementation Method 1
ultrasonic waves generated by multiple transducers (piezoelectric transducers) of an ultrasonic probe
Data Source
AI summary
An ultrasonic diagnostic apparatus according to a present embodiment includes: a transmitting and receiving circuit configured to transmit an ultrasonic wave to an ultrasonic probe and receive a signal based on the ultrasonic wave received by the ultrasonic probe; a generation circuit configured to generate multiple 2D image data in a chronological order based on the signal; an acquisition circuit configured to acquire three-dimensional multiple position data of the ultrasonic probe; an associating circuit configured to associate the multiple position data with the respective multiple 2D image data; and a correction circuit configured to correct the multiple position data associated by the associating circuit.