3D Model Defect Inspection via Thumbnail Filmstrip
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Solution Overview
Problem
Conventional rendering applications often generate three-dimensional models with defects such as holes, detached portions, and non-manifold regions, making it difficult for users to locate and repair these issues due to their small size or invisibility within the model.
Innovation Solution
A computer-implemented method that analyzes the 3D model to identify defects, generates defect indicators, and displays a graphical user interface (GUI) with thumbnail images for each defect, allowing users to quickly locate and repair them manually or automatically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the 3D model is rendered from a single viewing position, then the overall model structure is visible, but small defects become invisible and cannot be located
Solution Approach 1:
The patent segments the 3D model inspection into multiple thumbnail views, each showing a different viewing position. This segmentation allows defects to be visible in at least one thumbnail while maintaining the overall model context in the main view, resolving the contradiction between seeing the whole model and detecting small defects.
Solution Approach 2:
The patent adds a temporal dimension by displaying multiple viewing positions simultaneously through thumbnails. This transforms the single-view inspection into a multi-perspective inspection, enabling defect detection across different angles without losing the overall model context.
2Device complexity
If the user manually locates defects in the 3D model, then no additional tools are needed, but the time required to find and repair all defects increases significantly
Solution Approach 1:
The patent performs preliminary action by automatically generating multiple thumbnail views from different viewing positions before the user inspects the model. This pre-computation of multiple perspectives allows users to quickly locate defects without manually rotating or adjusting the model, significantly reducing defect location time while keeping the interface simple.
3Difficulty of detecting and measuring
If multiple viewing positions are displayed simultaneously, then all defects become visible, but the interface complexity and rendering time increase
Solution Approach 1:
The patent creates simplified copies (thumbnails) of the 3D model from different viewing positions rather than displaying multiple full-resolution views. These thumbnail copies provide sufficient defect detection capability while consuming minimal interface space and rendering resources, avoiding excessive interface complexity.
Data Source
AI summary
A mesh repair application within a rendering engine is configured to generate a graphical user interface (GUI) that allows an end-user of the rendering engine to inspect and repair various defects associated with a three-dimensional (3D) model. The GUI provides a filmstrip that includes different visual representations of the various defects. When the end-user selects a given representation, the mesh repair application updates the GUI to display a detailed view of the defect associated with the selected visual representation. An advantage of the approach described herein is that the repair of defects associated with the 3D model may be expedited.