Título:	Intra-frame context-based octree coding for point-cloud geometry
Autor(es):	Garcia, Diogo Caetano Queiroz, Ricardo Lopes de
Assunto:	Vídeo digital Nuvens de ponto
Data de publicação:	2018
Editora:	IEEE
Referência:	GARCIA, Diogo C.; QUEIROZ, Ricardo L. de. Intra-frame context-based octree coding for point-cloud geometry. In: IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP), 25 th., 2018, Athens, Greece. Proceedings [...]. Athens, Greece: IEEE, 2018. DOI: 10.1109/ICIP.2018.8451802.
Abstract:	3D and free-viewpoint video has been slowly adopting a solid representation, such as using meshes and point-clouds. Among other characteristics, meshes provide direct surface representation, while point-cloud processing requires less computation. Points in the cloud are minimally represented by their geometry (3D position) and color. A common point-cloud geometry compression method is the octree representation, 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. Results show that the proposed solution offers state-of-the-art performance, with an average rate reduction of 29% compared to the octree representation.
Unidade Acadêmica:	Faculdade de Ciências e Tecnologias em Engenharia (FCTE) – Campus UnB Gama Curso de Engenharia Eletrônica (FCTE-Engenharia Eletrônica) Instituto de Ciências Exatas (IE) Departamento de Ciência da Computação (IE CIC)
DOI:	10.1109/ICIP.2018.8451802
Versão da editora:	https://ieeexplore.ieee.org/document/8451802
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