PHT-CAD introduces a novel approach to analyzing 2D engineering drawings that overcomes key challenges in structural constraint reasoning and semantic understanding.

Key Innovations:

• Efficient Hybrid Parametrization (EHP) framework for better representation of engineering drawings
• Progressive Hierarchical Tuning methodology that adapts to different levels of complexity
• Integration of four atomic components (point, line, circle, arc) for comprehensive analysis
• Superior performance for CAD drawing interpretation in industrial manufacturing

Industry Impact: This research significantly advances Computer-Aided Design capabilities for engineering and manufacturing, enabling more efficient analysis of technical drawings and potentially streamlining industrial production processes.

PHT-CAD: Efficient CAD Parametric Primitive Analysis with Progressive Hierarchical Tuning