Biomedical problems in time-frequency-scale analysis-new challenges

Biomedical problems are especially rich in the information they provide as an indication of the body´s organ or system function. Information obtained from the human body is dynamic, time-varying, sometimes transient, mostly non-stationary, usually corrupted by noise. Time-frequency and time-scale analysis techniques are especially well suited to address such problems. Successful examples of applications of these techniques are in the analysis of ECG signals from the heart (analysis of QRS complexes and late potentials) and brain (evoked potentials and seizure spikes). Future work in this area will require that novel signal processing techniques are stimulated to serve the need for biological discovery