A Hierarchical Method for Removal of Baseline Drift from Biomedical Signals: Application in ECG Analysis

Table 1

Experimental results of removing the baseline wander.

Subject	Shift/elevation	Error1	Error2
1	290/0	2.0996	0.7847
2	250/1	28.1832	2.7037
3	300/4	193.9524	3.4495
4	300/1	24.3905	1.0727
5	300/3	89.1358	3.6282
6	290/2	17.9017	1.1614
7	300/1	28.955	1.0623
8	200/0	107.7542	13.4439
9	300/2	203.8138	4.0846
10	290/2	81.7942	2.2818
11	290/2	256.3747	8.7264
12	300/2	41.0977	2.4223
13	260/1	44.2238	2.279
14	260/2	101.7592	2.3317
15	310/2	700.1481	101.429
16	290/1	12.7575	1.3522
17	290/1	45.6429	2.6412
18	310/0	36.8833	11.8224
19	290/1	9.1224	1.88
20	290/2	181.3923	23.0193
21	300/2	25.4492	2.6421
22	370/4	252.4353	8.5616
23	260/2	304.7066	7.4637
24	290/1	116.9048	3.77
25	300/1	16.3922	1.05
26	290/0	3.4748	0.6671
27	300/2	144.4347	1.8579
28	290/0	23.9724	2.1641
29	290/1	14.5089	0.2205
30	290/1	155.3859	3.6707
31	300/1	50.6959	2.6757
32	300/1	27.2665	1.101
33	300/1	56.7045	1.999
34	290/2	324.4399	10.0313
35	300/1	42.6266	0.8791
36	290/2	539.7357	31.3238
37	290/1	19.8874	0.8131
38	290/1	14.3623	2.6499
39	260/1	8.8582	6.4787
40	300/4	135.0286	3.0056
41	290/1	29.5551	2.7541
42	300/1	43.3923	3.0052
43	290/0	51.0465	6.9241
44	290/0	31.9213	5.4646
45	290/1	9.7597	1.3328
46	270/1	22.7897	1.3598
47	290/2	93.5265	1.899
48	290/0	8.7422	1.5607
49	350/6	892.829	74.3034
50	300/3	209.4986	6.3436
51	300/3	60.5121	2.6645
52	290/1	3.7123	0.9486
53	290/4	247.2271	5.138
54	250/1	32.0128	2.8609
55	310/0	20.1471	1.336
56	310/0	5.2858	4.0839
57	290/0	7.1664	0.9526
58	300/1	35.4656	0.8932
59	290/1	10.9895	0.8653
60	300/3	115.7327	4.8387
61	300/1	26.7803	0.7141
62	290/2	9.3222	2.8809
63	290/1	16.9436	0.9469
64	300/0	27.7014	1.7794
65	290/1	55.1891	4.9226
66	310/6	620.3234	8.0999
67	400/2	23.6969	0.5595
68	290/2	36.63757	1.4766
69	290/2	241.5044	11.7279
70	290/1	5.5229	0.3386
71	290/2	173.1734	7.0318
72	300/2	77.4627	3.2468