Volume Rendering Apparatus Region-Specific Gain Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current volume rendering techniques in medical imaging, such as ultrasound diagnosis, struggle to provide high-quality images by uniformly applying gain and threshold values to all voxels, leading to suboptimal visualization of 3D objects, especially in regions with varying ultrasound signal strengths.
Innovation Solution
A volume rendering apparatus and method that apply distinct gain values or threshold values to specific voxels based on user input or pre-set models, allowing for amplification or attenuation of brightness values, and setting values to zero when below a certain threshold, thereby enhancing image quality by differentiating voxels at the same distance from the viewpoint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If uniform gain and threshold values are applied to all voxels, then the rendering process is simple and fast, but the image quality is suboptimal especially in regions with varying ultrasound signal strengths
Solution Approach 1:
The patent applies different gain and threshold values to different spatial regions of the volume data. Specifically, it divides the volume into multiple regions and assigns region-specific rendering parameters to optimize image quality in each area, particularly enhancing regions with weak ultrasound signals while maintaining appropriate visualization in other areas.
Solution Approach 2:
The patent segments the volume data into multiple regions based on spatial coordinates and applies distinct rendering parameters to each segment. This segmentation allows the system to handle complex rendering requirements by breaking down the volume into manageable regions that can be processed with optimized parameters.
2Manufacturing precision
If different gain and threshold values are applied to different voxels, then image quality is improved, but the rendering process becomes more complex
Solution Approach 1:
The patent changes the rendering parameters (gain and threshold values) based on the spatial position of voxels. By making these parameters variable rather than constant, the system adapts the rendering process to local characteristics of the volume data, improving visualization quality in regions with varying signal strengths.
3Manufacturing precision
If region-specific gain and threshold values are applied, then weak signal regions are enhanced, but processing time may increase
Solution Approach 1:
The patent performs preliminary classification of voxels into different regions before applying the rendering process. By pre-defining region boundaries and associating specific parameters with each region in advance, the system avoids complex real-time calculations during rendering, thus maintaining processing efficiency while achieving enhanced visualization.
Data Source
Figure 1
Figure 2A~2C
Figure 3
AI summary
Provided is a volume rendering method including: obtaining 3-dimensional (3D) volume data of an object; setting a parameter of a first voxel included in the 3D volume data as a first value, and a parameter of a second voxel included in the 3D volume data as a second value; and performing rendering by applying the first value to the first voxel and the second value to the second voxel.