Dental Image Analysis Using Pixel-Level Tooth Segmentation

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Solution Overview

Problem

Conventional dental radiograph analysis methods are time-consuming and prone to errors due to the complexity of dental structures and the difficulty in accurately delineating object boundaries, especially for non-rectangular objects like teeth, leading to inconsistent and labor-intensive manual charting.

Innovation Solution

The system employs deep neural network architectures and object segmentation techniques to accurately locate and delineate teeth and dental conditions in radiographs, using models like YOLOv8 and Mask R-CNN for precise detection and classification, with a merging module to integrate these results into a comprehensive report.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual charting methods are used to analyze dental radiographs, then dental professionals can identify and record conditions, but the process becomes time-consuming and labor-intensive

Engineering Contradiction:
Improvedetection accuracyVSAvoidanalysis time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical charting with an automated computer vision system that uses deep learning models (YOLOv8, Mask R-CNN) to detect and analyze dental conditions in radiographs, eliminating the need for manual interpretation and significantly reducing analysis time while maintaining high detection accuracy

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-service automation where the computer vision model independently performs detection, segmentation, and classification of dental conditions without requiring continuous human intervention, allowing the system to process radiographs autonomously and reduce dependency on manual labor

Inventive Principle:
Principle #25Self-service

2Measurement precision

If conventional bounding box methods are used to locate objects in radiographs, then object presence can be identified, but precise delineation of object boundaries cannot be achieved

Engineering Contradiction:
Improvelocation accuracyVSAvoidboundary delineation precision
Core Design Contradiction:
Measurement precisionVSManufacturing precision

Solution Approach 1:

The patent applies segmentation by dividing the radiograph into multiple regions corresponding to individual dental structures (teeth, gums, bone), with each region precisely delineated by segmentation masks that accurately outline boundaries, enabling detailed analysis of specific anatomical features rather than treating the entire image as a single bounding box

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from two-dimensional bounding boxes to pixel-level segmentation masks, adding a new dimension of precision by defining boundaries at the pixel level rather than merely enclosing objects in rectangular boxes, thereby achieving accurate delineation of irregular dental structure contours

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If automated image recognition systems are used, then analysis speed improves, but accurate delineation of irregular dental structures remains difficult

Engineering Contradiction:
Improveautomation efficiencyVSAvoidshape delineation accuracy
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent changes the output parameter from simple bounding box coordinates to pixel-level segmentation mask arrays, fundamentally altering the data structure to capture irregular shapes accurately. This parameter transformation enables the automated system to represent complex dental structures with high precision while maintaining processing efficiency through algorithmic optimization

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12394052B2Systems and methods for dental image analysis
Publication Date: 2025.08.19 VELMENI INC
  • US12394052B2 patent drawing
  • US12394052B2 patent drawing
  • US12394052B2 patent drawing

AI summary

Systems and methods for analyzing dental radiographs use deep neural network architectures, model training procedures and data processing method for automated dental charting and condition detection. The systems and methods produce detailed outputs that are comprehensive analyses of dental radiographs attributing detected conditions to particular teeth.