Table 1 Determination conditions for interference removal.

From: Study on lung CT image segmentation algorithm based on threshold-gradient combination and improved convex hull method

Maximum area of organization

x

y

Area

400

\(180<\textrm{x}<340\)

\(182<\textrm{x}<345\)

400

1500

\(200<\textrm{x}<340\)

\(30<\textrm{y}<140,400<\textrm{y}<480\)

1000

1500

\(10<\textrm{x}<120,392<\textrm{x}<510\)

\(50<405\)

1500

1500

\(330<\textrm{x}<390\)

\(210<\textrm{y}<280\)

1500