Fig. 11
From: Real-time algorithm for Poissonian noise reduction in low-dose fluoroscopy: performance evaluation
The enlargement of the real fluoroscopic image including the radiopaque needle: a raw image, the yellow vertical line was manually placed across the needle to evaluate blur, b image filtered with VBM4D and algebraic inversion of the Anscombe transform; image filtered with NVCA (T = 1.5σ) with mask size of b 5 × 5 × 1 pixels, d 5 × 5 × 3 pixels, e 5 × 5 × 5 pixels and f 5 × 5 × 7 pixels