Blanco-Velasco Manuel, Cruz-Roldán Fernando, Godino-Llorente J Ignacio, Blanco-Velasco Joaquín, Armiens-Aparicio Carlos, López-Ferreras Francisco
Dep. Teoría de la Señal y Comunicaciones, Escuela Politécnica, Universidad de Alcalá, Alcalá de Henares (Madrid), Spain.
Med Eng Phys. 2005 Nov;27(9):798-802. doi: 10.1016/j.medengphy.2005.02.007.
The quality measurement of the reconstructed signal in an electrocardiogram (ECG) compression scheme must be obtained by objective means being the percentage root-mean-square difference (PRD) the most widely used. However, this parameter is dependent on the dc level so that confusion can be stated in the evaluation of ECG compressors. In this communication, it will be shown that if the performance of an ECG coder is evaluated only in terms of quality, considering exclusively the PRD parameter, incorrect conclusions can be inferred. The objective of this work is to propose the joint use of several parameters, as simulations will show, effectiveness and performance of the ECG coder are evaluated with more precision, and the way of inferring conclusions from the obtained results is more reliable.
在心电图（ECG）压缩方案中，重建信号的质量测量必须通过客观手段来获得，其中均方根差百分比（PRD）是使用最广泛的。然而，该参数依赖于直流电平，因此在评估ECG压缩器时可能会产生混淆。在本通信中，将表明如果仅根据质量来评估ECG编码器的性能，仅考虑PRD参数，可能会得出错误的结论。这项工作的目的是建议联合使用几个参数，正如模拟将显示的那样，这样可以更精确地评估ECG编码器的有效性和性能，并且从获得的结果中推断结论的方式更可靠。
