what does s_vertex_cordinates and d_vertex_coordinates refer to in paper?

WeijingShi / Point-GNN

Point-GNN: Graph Neural Network for 3D Object Detection in a Point Cloud, CVPR 2020.

MIT License

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what does s_vertex_cordinates and d_vertex_coordinates refer to in paper? #74

Open sumeshthakr opened 3 years ago

sumeshthakr commented 3 years ago

Hi Weijing, I went through your implementation and in this particular line, https://github.com/WeijingShi/Point-GNN/blob/48f3d79d5b101d3a4b8439ba74c92fcad4f7cab0/models/gnn.py#L351

You refer to s_vertex_coordinates as source vertex and d_vertex_coordinates as destination vertex, So, in my understanding, the following equation(5) in your paper x_i refers to d_vertex_cordinates and x_j refers to s_vertex_coordinates, is that right? or is it the other way around?

Thanks a lot

WeijingShi commented 3 years ago

Hi Sumesh, I think you are correct!