A Sparse Representation Based Method to Classify Pulmonary Patterns of Diffuse Lung Diseases

Figure 6

The classification accuracy and runtime of the dictionary learning of SR1 (K-SVD+OMP) and SR2 (K-Means+OMP). The patch size was and the number of nonzero entries was 8. Replacement of the K-SVD by the K-Means can reduce the runtime of the method while keeping the classification accuracy.

(a)

(b)