Optimized Parallelization for Nonlocal Means Based Low Dose CT Image Processing

Figure 1

Processed result of one abdomen LDCT image. (a) and (b) are the original LDCT image and the corresponding SDCT image. (c) and (d) are the LDCT images processed by NLM filtering with and searching windows, respectively.

(a)

(b)

(c)

(d)