Supervision : Patrick GARDA

Co-supervision : HACHICHA Khalil

Compression en qualité diagnostic de séquences d'images médicales pour des plateformes embarquées

Hospitals and medical centers produce an enormous amount of digital medical images every day, especially in the form of image sequences. Due to the large storage size and limited transmission bandwidth, an efficient compression technique is necessary. We first proposed a compression algorithm for medical images sequences MMWaaves. It is based on Markov fields coupled with the certified medical device Waaves of Cira company. We demonstrated that MMWaaves provide a compression gains greater than 30% compared to JPEG2000 and Waaves while ensuring outstanding image quality for medical diagnosis (SSIM> 0.98). In addition, it achieved compression rates equal to those obtained by H.264 while improving the image quality. Then we developed a new compression algorithm MLPWaaves based on DWT difference followed by a new adaptive scanning model LPEAM in order to optimize the local stationary of wavelet coefficients. We obtained a compression gain up to 80% compared to Waaves and JPEG2000 while ensuring acceptable quality for medical diagnosis. Finally, in order to transmit medical images for diagnostic from the health center to the mobile device of the doctor, we proposed a client-server remote radiology system for encoding and decoding. It is based on a multithreading paradigm to accelerate treatment. The validation of this solution was performed on two different platforms. We achieved an acceleration factor of 5 on an Intel Core i7-2600 and a factor of 3 on a Samsung Galaxy tablet.

2012-2017 Publications

• 2017
  • I. Dhif, Kh. HACHICHA, A. Pinna, S. Hochberg, I. Mhedhbi, P. Garda : “Epileptic Seizure Detection based on Expected Activity Measurement and Neural Network Classification”, The 39^th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC’17), Jeju Island, Korea, Republic of (2017)
• 2016
  • I. Dhif, M. Ibraheem, L. Lambert, Kh. HACHICHA, A. Pinna, S. Hochberg, I. Mhedhbi, P. Garda : “A novel approach using WAAVES coder for the EEG signal compression”, BHI2016, LAS VEGAS - Nevada, United States (2016)
• 2015
  • I. Mhedhbi : “Compression en qualité diagnostic de séquences d’images médicales pour des plateformes embarquées”, thesis, phd defence 01/15/2015, supervision Garda, Patrick, co-supervision : Hachicha, Khalil (2015)
  • L. Lambert, J. Despatin, I. Dhif, I. Mhedhbi, M. Ibraheem, S. Ahmed, B. Granado, Kh. HACHICHA, A. Pinna, P. Garda, F. Kaddouh, M. Terosiet, A. Histace, O. Romain, C. Bellet, F. Durand, J.‑P. Commes, S. Hochberg, D. Heudes, P. Lozeron, N. Kubis : “Telemedecine, electroencephalography and current issues. SMART-EEG: An innovative solution”, European Research in Telemedicine / La Recherche Européenne en Télémédecine, vol. 4 (3), pp. 81-86, (Elsevier Masson SAS) (2015)
  • L. Lambert, I. Dhif, M. Ibraheem, B. Granado, Kh. HACHICHA, A. Pinna, P. Garda, N. Kubis, F. Kaddouh, D. Heudes, M. Terosiet, A. Histace, O. Romain, S. Hochberg, I. Mhedhbi : “Smart-EEG: a Tele-medicine System for EEG Exams”, JETSAN, Compiègne, France (2015)
• 2014
  • I. Mhedhbi, Kh. HACHICHA, P. Garda : “Multithreading Parallel Bit Plane Coding”, Conference on Design of Circuits and Integrated Circuits (DCIS), 2014, Madrid, Spain, pp. 1-6 (2014)
  • I. Mhedhbi, Kh. HACHICHA, P. Garda : “A New Integer Energy Activity Mesure for Parallel Bit Plane Coding”, IEEE 12^th International New Circuits and Systems Conference (NEWCAS), 2014, Trois-Rivières, Canada, pp. 305-308 (2014)
  • I. Mhedhbi, K. Fayez, Kh. HACHICHA, D. Heudes, S. Hochberg, P. Garda : “Mask Motion Adaptive medical image coding”, IEEE-EMBS International Conference on Biomedical and Health Informatics (BHI), 2014, Valence, Spain, pp. 408-411 (2014)
  • S. Ahmed, Y. Bai, I. Dhif, L. Lambert, I. Mhedhbi, P. Garda, B. Granado, Kh. HACHICHA, A. Pinna, F. Ghaffari, A. Histace, O. Romain : “SmartEEG : a multimodal tool for EEG signals”, Faible Tension Faible Consommation, Monaco, Monaco, pp. 1-4 (2014)
• 2013
  • Y. Bai, S. Ahmed, I. Mhedhbi, Kh. HACHICHA, C. Champion, P. Garda, B. Granado : “FPGA vs DSP: A Throughput and Power Efficiency Comparison for Hierarchical Enumerative Coding”, IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC), Istanbul, Turkey (2013)
  • Y. Bai, I. Mhedhbi, Kh. HACHICHA, P. Garda, B. Granado, S. Ahmed, S. Topin, S. Hochberg, K. Fayez, D. Heudes : “Contribution à l’intégration matérielle du codeur vidéo pour l’imagerie médicale MM-Waaves”, Symposium on Signal and Image Processing (GRETSI), Brest, France (2013)
• 2012
  • I. Mhedhbi, Kh. HACHICHA, P. Garda, Y. Bai, B. Granado, S. Topin, S. Hochberg : “Towards a mobile implementation of Waaves for Certified Medical Image Compression in E-health Applications”, Wireless Mobile Communication and Healthcare, vol. 61, Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, Paris, France, pp. 79-87, (Springer) (2012)
  • I. Mhedhbi, Kh. HACHICHA, P. Garda : “Compression Waaves de séquences d’images m ́edicales par modélisation Markovienne”, Colloque du GDR SOC-SIP, Paris, France, pp. 1-4 (2012)