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pahn04 / PPConv

Projection-based Point Convolution
MIT License
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Generate only pseudo image #3

Closed Shahmad99 closed 1 year ago

Shahmad99 commented 2 years ago

Hi, can we use the just "projection network" only to generate pseudo image from point cloud? i want to perform some other experiment on pseudo image. But I am confused how to use only the projection network from this code. Thanks

pahn04 commented 2 years ago

Hello, I appreciate your interest in our project.

The way I understood your question is that you want to use the projection module so that you can transform point cloud into an image-like feature map.

This can be performed using the projection module in the projection branch, which is implemented as part of the projection-based convolutional module in the following code. https://github.com/pahn04/PPConv/blob/395957b919786bb5b603f37a94ccf9173afce085/pvcnn_code/modules/conv_pillar_caf.py#L89 The output variable proj_x is in the form of B x C x H x W, where B is the batch size and the other dimensions denote the size of pseudo-image feature map. The projection module (which is called as self.projection) is implemented in the following code. https://github.com/pahn04/PPConv/blob/395957b919786bb5b603f37a94ccf9173afce085/pvcnn_code/modules/projection.py

For further explanation, you can refer to the section IV. B. 1) in our paper.