Translucent 3D Image Display Using Weighted Voxel Color Mixing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for displaying three-dimensional (3D) images in a translucent state struggle to optimally display overlapping objects, as the sharpness and transmittance of the image vary significantly depending on pixel color and overlapping regions, leading to poor visibility of objects in the background or foreground.
Innovation Solution
The proposed solution involves detecting overlapping voxels in 3D image data, determining a combination ratio for mixing colors based on transparency values using specific weight functions, and generating a mixed color for optimal display. This approach ensures that overlapping objects are visible by adjusting the transparency and sharpness of the mixed color.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a plurality of objects are displayed to overlap translucently using conventional methods, then the transparency of each object can be adjusted, but the sharpness and transmittance of the translucent image vary significantly depending on pixel color and overlapping regions, causing poor visibility of background or foreground objects
Solution Approach 1:
The patent applies parameter changes by transforming the color mixing process from simple transparency blending to a weighted combination based on transparency values. The key parameter change is the introduction of weight values derived from transparency values (w1 = α1/(α1+α2)), which dynamically adjusts the contribution of each voxel's color to the final mixed color. This resolves the contradiction by making the mixing ratio adaptive to the actual transparency characteristics, ensuring consistent visibility and sharpness across different overlapping regions regardless of pixel color variations.
2Reliability
If several objects overlap translucently with high transmittance, then individual objects remain visible, but the total transmittance decreases causing the overlapping region to become too dark and objects may not be seen well
Solution Approach 1:
The patent resolves this brightness contradiction through parameter changes in the weight function design. By using weight values proportional to transparency values (w1 = α1/(α1+α2))), the system dynamically balances the contribution of each object's color based on its transparency. This ensures that when objects with high transmittance overlap, their combined brightness is optimally distributed, preventing the overlapping region from becoming too dark while maintaining individual object visibility. The weighted mixing ratio adapts to transparency characteristics to preserve illumination intensity.
Data Source
AI summary
Provided are a method and apparatus for displaying a translucent image. An image display apparatus detects a plurality of voxels overlapping in a depth direction in three-dimensional (3D) image data, determines a first combination ratio for two colors based on transparency values of a first voxel and a second voxel, generates a first mixed color by combining a color of the first voxel with a color of the second voxel at the first combination ratio, and displays a mixed color on a screen.