Photoacoustic Imaging Reconstruction Segmentation for Computational Load
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Solution Overview
Problem
Current photoacoustic imaging techniques face challenges in visualizing object information with enhanced definition and increased frequency of light irradiation due to high computational complexity in reconstruction processing.
Innovation Solution
An object information acquiring apparatus and method that generates image data using signals from multiple light irradiations, allowing for parallel display of images during irradiation and acoustic wave reception, with reduced computational complexity by using smaller reconstruction units for initial displays and larger units for high-definition displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If reconstruction processing is performed with high definition and increased frequency of light irradiation, then image quality and visualization speed are improved, but computational complexity increases
Solution Approach 1:
The patent divides the image reconstruction process into two distinct modes: real-time display using a first reconstruction processing method with lower computational complexity, and high-definition display using a second reconstruction processing method with higher computational complexity. This segmentation allows the system to provide both rapid visualization and high-quality images without requiring the full computational resources for every display update.
Solution Approach 2:
The system dynamically switches between different reconstruction processing methods based on the display mode. The display controller selectively outputs image data from either the first or second reconstruction processing according to whether real-time or high-definition display is required, allowing the computational complexity to adapt to the specific needs of each display scenario.
2Productivity
If reconstruction processing is performed at increased frequency, then visualization follows signal data acquisition more closely, but processing time and computational load increase
Solution Approach 1:
The patent segments the reconstruction processing into two parallel pathways: first reconstruction processing for real-time display and second reconstruction processing for high-definition display. This allows the system to generate real-time images with reduced processing time while simultaneously preparing high-definition images, thus improving visualization speed without sacrificing final image quality.
Solution Approach 2:
The system performs first reconstruction processing in advance to generate real-time displayable images while the second reconstruction processing is ongoing. This preliminary action ensures that visualization can follow signal data acquisition with minimal delay, while the more computationally intensive second processing continues in the background to produce high-definition images.
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
Improves the capability of visualizing object information in photoacoustic measurements by reducing computational complexity and enhancing image quality, enabling real-time display and high-definition imaging.
Implementation Method 1
a living organism that is an object is irradiated with pulsed light, and transducers receive acoustic waves generated by a test segment having absorbed energy of the pulsed light
Data Source
AI summary
An object information acquiring apparatus comprising: a processor generating image data representing characteristic information on an object, based on signals acquired by receiving an acoustic wave generated from an object by a plural light irradiations; and a display controller allowing a display to display an image, wherein the display controller performs first display in which an image is displayed in parallel with irradiation and second display in which an image is displayed based on more signal than in the first display, and the processor acquires the characteristic information for a smaller number of units of reconstruction when generating image data.