Contrast enhancement of Micro Dose X-ray images

Paolo Irrera (1, 2) , Isabelle Bloch (1) , Maurice Delplanque (2)

1 LTCI - Laboratoire Traitement et Communication de l'Information
2 EOSimaging

A multi-scale (MS) decomposition method for contrast enhancement of Micro Dose (MD) X-ray images is presented in this paper. First, we get a denoised version of the input exploiting a non-local means filter with adaptable parameters setting that we defined in a former approach. Then, the MS representations of the input and of its de-noised version are combined to obtain an optimal image in terms of preservation of details and noise attenuation. The efficiency of the al-gorithm is demonstrated by quantitative and qualitative assessments on both phantoms and clinical MD images.

Mots clés: Index Terms— Micro Dose X-ray imaging; Multi-scale decom-position; Non-local means filter

Domaines: Traitement du signal et de l'image [eess.SP]

Paolo Irrera, Isabelle Bloch, Maurice Delplanque. Contrast enhancement of Micro Dose X-ray images. IEEE International Symposium on Biomedical Imaging - ISBI 14', Apr 2014, Beijing, China. pp.489 - 492, ⟨10.1109/ISBI.2014.6867915⟩. ⟨hal-01096613⟩