Image Enhancement

In medical imaging, image enhancement is an important preprocessing step used to improve image analysis. Since the noise and the image resolution directly impacts the accuracy of automatic approaches such as segmentation and registration, it is important to improve the quality of images used during quantitative analysis.

In this field our main contributions are: i) the introduction of the nonlocal means filter for MRI processing, ii) its adaptation to DWI, ultrasound and multi-photon images, and iii) the investigation of its impact on tissue classification and cortical surface extraction.