Wei Yin 0006 Yifan Liu 0001 Chunhua Shen Youliang Yan Enforcing Geometric Constraints of Virtual Normal for Depth Prediction. 5683-5692 2019 ICCV https://doi.org/10.1109/ICCV.2019.00578 conf/iccv/2019 db/conf/iccv/iccv2019.html#YinLSY19