Fig. 12.

Error maps of PA image reconstruction for mouse cerebral vasculature in different models. The reconstruction results are ordered from the worst to the best (left to right and top to bottom) according to the SSIM metric. Positive values (red) represent that pixel intensity is less than reference. Negative values (blue) represent that pixel intensity is larger than the reference. The abbreviations in parentheses represent the form of the data as the inputs to the models. TR: time-reversal image. BP: backprojection image. TV: total variation. Raw: measured time-series signals. PI: pixel-interpolated data. MBLr: model-based learning.