Entropy and Energy Based Reconstruction of EEG Motor Imagery Signals with Tunable Q-Factor Wavelet Transform Ayarlanabilir Q-Fakt r Dalgacik D n s m ile EEG Motor Imgeleme Sinyallerinin Entropi ve Enerjiye Dayali Yeniden Yapilandirilmasi

Cansiz B., SERBES G.

33rd IEEE Conference on Signal Processing and Communications Applications, SIU 2025, İstanbul, Türkiye, 25 - 28 Haziran 2025, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/siu66497.2025.11112038
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Anahtar Kelimeler: EEG, Entropy, Machine Learning, Motor Imagery, Tunable Q-Factor Wavelet Transform
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Brain-Computer Interface applications aim to bridge the gap between individuals with motor impairments and technological devices through mental activity. In line with this goal, motor imagery signals acquired via electroencephalogram devices, which offer high temporal resolution, have become one of the challenges addressed by these applications. In studies developed in the literature, these signals are typically used in their raw or denoised forms during the classification process. Despite existing performances, the pursuit of methods that can enhance classification accuracy in this field continues. Therefore, this study proposes the enhancement and resynthesis of subband signals obtained through the Tunable Q-Factor Wavelet Transform using a method referred to as the Information Coefficient. In classification tasks conducted following this enhancement, the signal obtained with parameters Q:3 and J:7 was observed to improve accuracy by 1.34%.