

Evangelos Alexiou
evangelos.alexiou@epfl.ch


Below is the information related to the generation of the reference point clouds that were used in [1]. The reference models of this study are always voxelized. If a source point cloud has already been voxelized by the providers, it is used as is and indicated by using the keyword "by default" for the voxel depth in the content preparation section. If a source point cloud is not voxelized, our script (i.e., fun_voxelize) is used to perform voxelization at the selected depth. Note that since most of the contents are attributed with copyrights, links are provided to download them directly from the corresponding Source.


## Content preparation

Original name: Amphoriskos - Clean Point Cloud
Conventional name: amphoriskos
Source: [Sketchfab, creator Megan Bystricky](https://sketchfab.com/3d-models/amphoriskos-clean-point-cloud-85cba491e0a84ce58dc4a75715073ad2)
Description: Redistribution of a modified version under ./contents/amphoriskos/processed/, provided the [CC Attribution license](https://creativecommons.org/licenses/by/4.0/) of the original model. The redistributed point cloud is obtained after Poisson surface reconstruction that is applied on the original model, as implemented in CloudCompare with default configurations and 1 samples per node using the default normal vectors. From the reconstructed mesh, 1x10^6 points was randomly sampled using the same software. A voxelized version is also distributed under ./contents/amphoriskos/reference/
Voxel depth: 10 using ../scripts/content preparation/fun_voxelize

Original name: 1x1_Biplane_Combined_000
Conventional name: biplane
Source: [JPEG Pleno Database](http://grebjpeg.epfl.ch/jpeg_pc/index_Bi-plane.html)
Description: The original scalar fields should be set as RGB colour attributes (e.g., using CloudCompare)
Voxel depth: 10 using ../scripts/content preparation/fun_voxelize

Original name: Head_00039
Conventional name: head
Source: [MPEG Point Cloud Dataset](http://mpegfs.int-evry.fr/MPEG/PCC/DataSets/pointCloud/CfP/datasets/Static_Objects_and_Scenes/Inanimate_Objects)
Description: -
Voxel depth: 9 using ../scripts/content preparation/fun_voxelize

Original name: longdress_vox10_1300 [2]
Conventional name: longdress
Source: [MPEG PCC Dataset](http://mpegfs.int-evry.fr/MPEG/PCC/DataSets/pointCloud/CfP/datasets/Dynamic_Objects/People/8i/8iVFBv2)
Description: -
Voxel depth: 10 by default

Original name: loot_vox10_1200 [2]
Conventional name: loot
Source: [MPEG PCC Dataset](http://mpegfs.int-evry.fr/MPEG/PCC/DataSets/pointCloud/CfP/datasets/Dynamic_Objects/People/8i/8iVFBv2)
Description: -
Voxel depth: 10 by default

Original name: redandblack_vox10_1550 [2]
Conventional name: redandblack
Source: [MPEG PCC Dataset](http://mpegfs.int-evry.fr/MPEG/PCC/DataSets/pointCloud/CfP/datasets/Dynamic_Objects/People/8i/8iVFBv2)
Description: -
Voxel depth: 10 by default

Original name: romanoillamp
Conventional name: romanoillamp
Source: [JPEG Pleno Database](http://uspaulopc.di.ubi.pt/)
Description: The connectivity information is discarded (e.g., the faces are normally removed by loading the file in MATLAB using pcread function)
Voxel depth: 10 using ../scripts/content preparation/fun_voxelize

Original name: soldier_vox10_0690 [2]
Conventional name: soldier
Source: [MPEG PCC Dataset](http://mpegfs.int-evry.fr/MPEG/PCC/DataSets/pointCloud/CfP/datasets/Dynamic_Objects/People/8i/8iVFBv2)
Description: -
Voxel depth: 10 by default

Original name: HHI_The20sMaria_Frame_00600 [3]
Conventional name: the20smaria
Source: [MPEG PCC Dataset](http://mpegfs.int-evry.fr/MPEG/PCC/DataSets/pointCloud/CfP/datasets/Dynamic_Objects/People/HHI)
Description: -
Voxel depth: 10 using ../scripts/content preparation/fun_voxelize

For more details, please refer to [1].


## References

[1] Alexiou, E., Viola, I., Borges, T., Fonseca, T., De Queiroz, R., & Ebrahimi, T. (2019). A comprehensive study of the rate-distortion performance in MPEG point cloud compression. APSIPA Transactions on Signal and Information Processing, 8, E27. doi:10.1017/ATSIP.2019.20

[2] E. d’Eon, B. Harrison, T. Myers, and P. A. Chou, "8i Voxelized Full Bodies, version 2 – A Voxelized Point Cloud Dataset," ISO/IEC JTC1/SC29 Joint WG11/WG1 (MPEG/JPEG) Doc. m40059/M74006, Geneva, Switzerland, January 2017.

[3] T. Ebner, I. Feldmann, O. Schreer, P. Kauff, E. Feiler, F. Govaere, K. Costa-Zahn and F. Mrongowius, "HHI Point cloud dataset of moving actress," ISO/IEC JTC1/SC29/WG11 Doc. m42152, Gwangju, Korea, January 2018.
