Suchergebnisse - Octree coding

Distance-Based Probability Model for Octree Coding von de Queiroz, Ricardo L., Garcia, Diogo C., Chou, Philip A., Florencio, Dinei A.

“… We present a context-driven method to encode nodes of an octree, which is typically used to encode the point-cloud geometry …”
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Intra-Frame Context-Based Octree Coding for Point-Cloud Geometry von Garcia, Diogo C., de Queiroz, Ricardo L.

“… , which acts on individual frames and can be further compressed by entropy encoding. This paper presents a lossless intra-frame compression method for point-cloud geometry, which uses the octree structure to provide better contexts for entropy coding …”
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An Intelligent Detection Method for Different Types of Outliers in Multibeam Bathymetric Point Cloud von Yang, Fanlin, Xu, Fangzheng, Fan, Miao, Bu, Xianhai, Tu, Zejie, Yan, Xunpeng

“… First, a coding octree based on Morton code is built to guarantee perfect efficiency and space division …”
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Context-based octree coding for point-cloud video von Garcia, Diogo C., de Queiroz, Ricardo L.

“… We present a lossless inter-frame compression method for pointcloud geometry, by reordering each octree based on previous frames prior to entropy coding …”
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Local Geometry-Based Intra Prediction for Octree-Structured Geometry Coding of Point Clouds von Wang, Zhecheng, Wan, Shuai, Wei, Lei

“… to predict the occupancy bit of the octree node for entropy coding, reducing the spatial redundancy …”
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Enhancing Octree-based Context Models for Point Cloud Geometry Compression with Attention-based Child Node Number Prediction von Sun, Chang, Yuan, Hui, Mao, Xiaolong, Lu, Xin, Hamzaoui, Raouf

“… In point cloud geometry compression, most octree-based context models use the cross-entropy between the one-hot encoding of node occupancy and the probability distribution predicted by the context model as the loss …”
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Graph-Based Static 3D Point Clouds Geometry Coding von de Oliveira Rente, Paulo, Brites, Catarina, Ascenso, Joao, Pereira, Fernando

“… of data without appropriate coding. This bottleneck has raised the need …”
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Learning-Based Lossless Compression of 3D Point Cloud Geometry von Nguyen, Dat Thanh, Quach, Maurice, Valenzise, Giuseppe, Duhamel, Pierre

“… Unlike most existing methods working in the octree domain, our encoder operates in a hybrid mode, mixing octree and voxel-based coding …”
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Arithmetic Coding Information for Parallel Octree Coding

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RGBTSDF: An Efficient and Simple Method for Color Truncated Signed Distance Field (TSDF) Volume Fusion Based on RGB-D Images von Li, Yunqiang, Huang, Shuowen, Chen, Ying, Ding, Yong, Zhao, Pengcheng, Hu, Qingwu, Zhang, Xujie

“… First, based on the sparse characteristics of the volume, an improved grid octree is used to manage the whole scene, and a hard coding method is proposed for indexing …”
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Improved Geometry Coding for Spinning LiDAR Point Cloud Compression von Wang, Wenyi, Xu, Yingzhan, Vishwanath, Bharath, Zhang, Kai, Zhang, Li

“… In current G-PCC, the prior information of spinning LiDAR is not fully utilized in octree geometry coding …”
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Dynamic polygon clouds: representation and compression for VR/AR von Pavez, Eduardo, Chou, Philip A., de Queiroz, Ricardo L., Ortega, Antonio

“… We introduce the polygon cloud, a compressible representation of three-dimensional geometry (including attributes, such as color), intermediate between …”
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Block size selection in rate-constrained geometry based point cloud compression von Gao, Pan, Wei, Mingqiang

“… In geometry-based point cloud compression, the geometry information is typically compressed using octree coding …”
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Latent Space Slicing for Enhanced Entropy Modeling In Learning-Based Point Cloud Geometry Compression von Frank, Nicolas, Lazzarotto, Davi, Ebrahimi, Touradj

“… The growing adoption of point clouds as an imaging modality has stimulated the search for efficient solutions for compression. Learning-based algorithms have …”
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A Simplification Method for Point Cloud of T-Profile Steel Plate for Shipbuilding von Gao, Yanfeng, Ping, Cicao, Wang, Ling, Wang, Binrui

“… In this paper, a point cloud simplification method is proposed based on octree coding and the threshold of the surface curvature feature …”
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Lossless Compression of Point Cloud Sequences Using Sequence Optimized CNN Models von Kaya, Emre C., Tabus, Ioan

“… The newly proposed encoding scheme operates on the octree representation for each point cloud, consecutively encoding each octree resolution level …”
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Geometry Coding for Dynamic Voxelized Point Clouds Using Octrees and Multiple Contexts von Garcia, Diogo C., Fonseca, Tiago A., Ferreira, Renan U., de Queiroz, Ricardo L.

“… It uses octrees and works by progressively increasing the resolution of the octree. At each branch of the tree, we generate an approximation of the child nodes by a number of methods which are used as contexts to drive an arithmetic coder …”
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Scalable Feature‐Preserving Irregular Mesh Coding von El Sayeh Khalil, J., Munteanu, A., Denis, L., Lambert, P., Walle, R.

“… By employing octree‐based coding techniques, the encoding of both connectivity and geometry information is decoupled from any mesh traversal order, and allows for exploiting the intra …”
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Scalable intraband wavelet‐based coding scheme for irregular meshes von Toueti, Marouen, Ouled Zaid, Azza

“… Summary This paper describes a novel scalable 3D triangular mesh coding method based on wavelet transform and successive approximation quantization …”
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VoxRec: Hybrid Convolutional Neural Network for Active 3D Object Recognition von Karambakhsh, Ahmad, Sheng, Bin, Li, Ping, Yang, Po, Jung, Younhyun, Feng, David Dagan

“… We also proposed a similar method for 3D segmentation using Octree coding method. Finally, comparing the accuracy with some of the state-of-the-art demonstrates …”
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