An issue while training with low resolution image

[yuechenfeng]

Dear AstarLight:
I am using some low resolution image(13*13) to train the Engine. I am quite confused about why and which of the following way is better.

1. Using low resolution images as input to train the model directly. Right now, I am using this way. However, the accuracy of the model keep in a quit low level.
2. resize the input image shape to 64*64, then train the model.
3. just used the existed model to evaluate my low resolution images
   Or any other suggestion?