Table 5 Comparison table of underwater image ranging data with different resolution.

From: Research on underwater robot ranging technology based on semantic segmentation and binocular vision

Measurement image

True distance (m)

Measuring distance (m)

Relative error (%)

Measurement time (s)

Image2

1.0

0.9542

4.58

0.073

Image3

1.0

0.9664

3.36

0.071