Table 3.

Comparison of compression performance.

Reference	Method Used	CR (%)	PRD (%)	PRDN (%)	Hardware Implementation	Real-Time Execution	Noise Reduction
Cox et al.18	Time Domain	83	31.0	—	No	No	No
Abenstein et al.19	Time Domain	80	11.0	—	No	No	No
Alam et al.21	Transform Domain	90	5.1	6.5	No	No	No
Ziran et al.20	Transform Domain	95	10.6	—	No	No	No
Adamo et al.51	Parameter Extraction	42	1.1	17.3	No	No	No
Elgendi et al.8	Parameter Extraction	78	0.5	—	No	No	No
Elgendi et al.22	Parameter Extraction	83	1.9	—	No	No	No
Wang et al.29	Hybrid	94	7.3	—	No	No	No
Ma et al.30	Hybrid	94	1.7	25.7	No	No	No
Lee et al.45	Hybrid	95	2.9	40.6	No	No	No
Lai et al.52	Transform Domain	81	0.2	3.7	Yes	Yes	No
Luo et al.53	Transform Domain	85	0.2	2.6	Yes	Yes	No
Proposed	Transform Domain	90	1.5	8.8	Yes	Yes	Yes