Table 3 Proposed processing methods.

From: Inspection of railway catenary systems using machine learning with domain knowledge integration

ID

Base processing method

Additional processing method

Model 1 type

Model 2 type

1

Simple one-stage

All

2

Simple two-stage (tiling)

Basic

Small

3

Two-stage processing (object grouping)

Basic

Small

3+M

Same as 3

Second Stage ROI masking

Basic

Small

3+D

Same as 3

Confidence score weighting

Basic

Small

3+M+D

Same as 3

Confidence score weighting and second stage ROI masking

Basic

Small