Abstract
This article presents a practical implementation of an ECG compression algorithm using a Max-Lloyd quantizer, to optimize the low resources of an ECG acquisition and transmission system (telemetry system) for dolphins and human divers. The algorithm scheme is based on a first-order differential pulse code modulation (DPCM) and uses a Max-Lloyd quantizer to code the difference between the current and predicted samples. The use of the non-uniform quantizer instead of a uniform quantizer improves the percent root mean-square difference (PRD), thereby producing a low distortion in the reconstructed signals. Due to its low computational complexity, the compression process can be accomplished on-line during the ECG acquisition process.
| Original language | English |
|---|---|
| Pages (from-to) | 13-21 |
| Number of pages | 9 |
| Journal | Computer Methods and Programs in Biomedicine |
| Volume | 73 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2004 |
| Externally published | Yes |
Funding
We wish to thank to the staff of the aquatic park LORO PARQUE (Tenerife, Spain) for their co-operation and technical support in the use of trained dolphins. This research was funded by grant number 226-57/97 from Universidad de La Laguna (Tenerife, Spain).
| Funders | Funder number |
|---|---|
| Universidad de La Laguna |
Keywords
- DDC
- DPCM
- Data compression
- Diving physiology
- ECG