Enforcing geometric constraints of virtual normal for depth prediction

Benchmark Model Rank Results
depth-estimation-on-nyu-depth-v2VNL#10RMS: 0.416
monocular-depth-estimation-on-kitti-eigenVNL#39absolute relative error: 0.072
monocular-depth-estimation-on-nyu-depth-v2VNL#50absolute relative error: 0.111RMSE: 0.416log 10: 0.048