Fig. 9.

Inter-subject registration results on infant brain images at different time points. The first row shows the 12-month-old template, with T2-weighted image (left) and T1-weighted image (middle). In the whole figure, the blue boxes denote the T2-weighted images, and the red boxes denote the T1-weighted images. From left to right columns, we show the registration results for the 2-week-old, 3-, 6-, and 9-month-old images by linear registration (2^nd row), direct use of diffeomorphic Demons (3^rd row), CC (4^th row), MI (5^th row), HAMMER (6^th row), diffeomorphic Demons after applying our learned patchwise appearance-displacement model (7^th row), and our full method (last row), respectively. Similar to Fig. 7, the 7^th row in this figure shows that the anatomical discrepancies are decreased, and the 8^th row shows that both anatomical and appearance discrepancies are decreased. Even for inter-subject registration case, as shown in the last row, our proposed method can still obtain good registration results.