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DensePCR

This repository contains the source codes for the paper Dense 3D Point Cloud Reconstruction Using a Deep Pyramid Network.
Accepted at Winter Conference on Applications of Computer Vision (WACV 2019)

Citing this work

If you find this work useful in your research, please consider citing:

@inproceedings{mandikal2019densepcr,
 author = {Mandikal, Priyanka and Babu, R Venkatesh},
 booktitle = {Winter Conference on Applications of Computer Vision ({WACV})},
 title = {Dense 3D Point Cloud Reconstruction Using a Deep Pyramid Network},
 year = {2019}
}

Overview

We propose a scalable and light-weight architecture for predicting high-resolution 3D point clouds from single-view images. Existing point-cloud based reconstruction approaches directly predict the entire point cloud in a single stage. Although this technique can handle low resolution point clouds, it is not a viable solution for generating dense, high-resolution outputs. In this work, we introduce DensePCR, a deep pyramidal network for point cloud reconstruction that hierarchically predicts point clouds of increasing resolution. Towards this end, we propose an architecture that first predicts a low-resolution point cloud, and then hierarchically increases the resolution by aggregating local and global point features to condition them on a coordinate grid. This technique generates high-resolution outputs of improved quality in comparison to single stage reconstruction networks, while also providing a light-weight and scalable architecture. Overview of DensePCR

Sample Results

Below are a few sample reconstructions from our trained model. The predictions are dense outputs containing 16,384 points. DensePCR_sample_results

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Repository for 'Dense 3D Point Cloud Reconstruction Using a Deep Pyramid Network' [WACV 2019]

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