Fig. 3.

Training, validation, and test data sets. (a) Training data sets were generated from eight examinations (T₁WI, T₂WI, PDWI, etc.) from the brain and knee of five of the volunteers. After noise addition and data augmentation, 32400 patches of training pairs were obtained. (b) Validation data sets were created from six examinations such as T₁WI, T₂WI, PDWI, etc. of the brain and knee from four of the volunteers. After noise addition, 660 validation pairs were obtained. (c) Test data sets were obtained from three examinations of five volunteers. Oblique-coronal T₁WI, T₂WI and FLAIR images were acquired. Fat Sat., fat saturation; Brain ToF, time-of-flight images from brain MR angiography; FLAIR, fluid-attenuated inversion recovery; PDW, proton-density-weighted; T₁WI, T₁-weighted image; T₂WI, T₂-weighted image.