[PDF][PDF] Content-adaptive level of detail for lossless point cloud compression

L Wei, S Wan, F Yang, Z Wang - APSIPA Transactions on …, 2022 - nowpublishers.com
The nonuniform distribution of points in a point cloud and their abundant attribute
information (such as colour, reflectance, and normal) result in the generation of massive …

GPT-based Textile Pilling Classification Using 3D Point Cloud Data

Y Lu, YY Chen, G Zhou, Z Lan - arxiv preprint arxiv:2408.10496, 2024 - arxiv.org
Textile pilling assessment is critical for textile quality control. We collect thousands of 3D
point cloud images in the actual test environment of textiles and organize and label them as …

Adaptive Geometry Reconstruction for Geometry-based Point Cloud Compression

L Wei, S Wan, X Ding, FZ Yang… - 2023 IEEE International …, 2023 - ieeexplore.ieee.org
Since the geometry constitutes most of the bitrate and is used for attribute coding, it is crucial
for geometry-based point cloud compression (G-PCC). However, the current research …

MPEG AI-Based 3D Graphics Coding Standard

G Li, W Gao, W Gao - Point Cloud Compression: Technologies and …, 2024 - Springer
Previously, our attention was directed toward techniques related to point cloud compression,
encompassing transformation, quantization, entropy coding, and others. Within this section …

Optimization of octree-based adaptive geometry quantization via up-sampling for G-PCC

L Wei, S Wan, X Ding, Z Wang - 2023 IEEE International …, 2023 - ieeexplore.ieee.org
To improve the reconstructed point cloud after adaptive geometry quantization in geometry-
based point cloud compression, a least squares plane (LSP) projection-based up-sampling …

点云压缩研究进展与趋.

张卉冉, 董震, 杨必胜, 黄荣刚… - Geomatics & Information …, 2023 - search.ebscohost.com
三维点云为物理世界精细数字化提供了高精度的三维表达方式, 广泛应用于三维建模, 智慧城市,
自主导航系统, 增**现实等领域. 然而点云的数据海量, 非结构化, 密度不均等特点给点云的存储 …

Bi-Directional Inter-Prediction For Geometry-Based Point Cloud Compression

Y Xu, K Zhang, W Wang, L Zhang - 2022 IEEE International …, 2022 - ieeexplore.ieee.org
Efficient 3D point cloud compression plays critical role in immersive multimedia presentation
and autonomous driving. The temporal redundancy between consecutive point cloud frames …

Geometry reconstruction for spatial scalability in point cloud compression based on neighbour occupancies

Z Chen, S Wan, Z Wang - International Workshop on …, 2022 - spiedigitallibrary.org
Spatial scalability is an important functionality for point cloud compression. The current
design of geometry reconstruction for spatial scalability applies the points at the center of …

Geometry Reconstruction for Spatial Scalability in Point Cloud Compression Based on the Prediction of Neighbours' Weights

Z Chen, S Wan - 2022 IEEE International Conference on Visual …, 2022 - ieeexplore.ieee.org
Spatial scalability is a critical feature in geometrybased point cloud compression (G-PCC).
The current design of geometry reconstructions for spatial scalability applies points in fixed …

Method and apparatus for selecting neighbor point in point cloud, encoder, and decoder

W Zhu - US Patent 12,113,963, 2024 - Google Patents
This application provides a method for selecting a neighbor point of a current point in a point
cloud. The method includes: determining, from point cloud data, a target region where the …