. Author manuscript; available in PMC: 2016 Oct 1.

Published in final edited form as: Comput Methods Programs Biomed. 2015 Jun 16;122(1):1–15. doi: 10.1016/j.cmpb.2015.06.004

Table B.9. Description of features extracted for ROP diagnosis.

Index veins	Index arteries	Description
1	34	Minimum acceleration
2	35	2^nd minimum acceleration
3	36	2^nd maximum acceleration
4	37	Maximum acceleration
5	38	Mean acceleration
6	39	CM2 acceleration
7	40	CM3 acceleration
8	41	Minimum tortuosity
9	42	2^nd minimum tortuosity
10	43	2^nd maximum tortuosity
11	44	Maximum tortuosity
12	45	Mean tortuosity
13	46	CM2 tortuosity
14	47	CM3 tortuosity
15	48	Minimum diameter
16	49	2^nd minimum diameter
17	50	2^nd maximum diameter
18	51	Maximum diameter
19	52	Mean diameter
20	53	CM2 diameter
21	54	CM3 diameter
22	55	Minimum distance to disc center (DDC)
23	56	2^nd minimum DDC
24	57	2^nd maximum DDC
25	58	Maximum DDC
26	59	Mean DDC
27	60	CM2 DDC
28	61	CM3 DDC
29	62	Minimum branching factor
30	63	Maximum branching factor
31	64	Mean branching factor
32	65	CM2 branching factor
33	66	CM3 branching factor