3D Printing Color Voxel Data Generation via Density Ratio
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Solution Overview
Problem
Existing 3D manufacturing systems face challenges in efficiently handling interference between multiple color components when performing halftoning processes, as they struggle to accurately assign color information to voxels, leading to suboptimal color representation in three-dimensional objects.
Innovation Solution
A data processing apparatus that receives and processes three-dimensional object data, applying a halftoning process to determine color information for each voxel by calculating the density ratio of interfering color components, allowing for accurate assignment of color information using a density ratio-based method to select one color component for each voxel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a halftoning process is performed for each color component separately, then the processing speed is improved, but the color accuracy deteriorates due to interference between multiple color components in one voxel
Solution Approach 1:
The patent changes the parameter of color component selection from fixed/sequential to dynamic based on density ratio. By calculating the density ratio of each color component and selecting the color with the highest density ratio for each voxel, the system maintains color accuracy while preserving processing efficiency. This parameter-based selection resolves the contradiction by adapting the color assignment strategy to the actual color distribution in each voxel.
2Manufacturing precision
If multiple color components are assigned to one voxel, then the color representation is improved, but the device complexity increases due to handling interference between color components
Solution Approach 1:
The patent simplifies the complex multi-color assignment problem by changing the selection criterion to density ratio comparison. Instead of handling all possible color combinations and their interactions, the system calculates the density ratio for each color component and selects the maximum, thereby reducing processing complexity while maintaining color representation accuracy.
Solution Approach 2:
The patent extracts the essential characteristic for color selection (density ratio) from the complex interference problem of multiple color components. By focusing only on the density ratio parameter and selecting the color with the highest value, the system eliminates the need to process all color interaction scenarios, thereby reducing device complexity.
Data Source
AI summary
A data processing apparatus includes:a receiving unit that receives first data defining a shape and a color of a three-dimensional object; anda generating unit, wherein when two or more color components interfere with each other in one voxel as a result of performing a halftoning process for each of plural color components based on color information in the first data, the generating unit generates color voxel data by assigning any one of the two or more color components in the first data as color information of the one voxel, using a density ratio of colors corresponding to the two or more color components in the first data.