Samsung Eletronica Da Amazonia Ltda.

Universidade Federal Do Rio De Janeiro

Samsung Electronica Da Amazonia Ltda.

Ismael Seidel

Vanessa Testoni

Pedro Garcia Freitas

Murilo Bresciani De Carvalho

Carla Liberal Pagliari

Marcio Pinto Pereira

Gustavo De Oliveira E Alves

Fernando Manuel Bernardo Pereira

Diogo Caetano Garcia

Davi Rabbouni De Carvalho Freitas

Renam Castro Da Silva

Renan Utida Barbosa Ferreira

Rogério Higa

Camilo Chang Dorea

Ricardo Lopes De Queiroz

Eduardo Antânio Barros Da Silva

Carla Florentino Schueler

Ricardo L De Queiroz

Camilo C Dorea

Renan U B Ferreira

Davi R Freitas

The present invention refers to removal of redundant information from plenoptic point cloud data, reducing the number of bits needed to represent them and thus making the plenoptic point cloud data more suitable to be transferred through a medium of limited bandwidth. The proposed solution is based on predictive differential coding, using the standard color channel of a point clouds as a reference for plenoptic data, and on the application of transforms for greater data compression.

Method for compressing point clouds

The present invention relates to a prediction-based technique for encoding light field data by removing redundant information of light field data, reducing a number of bits by employing a prediction of a pixel value in all four dimensions of the light field. Using this technique to represent light field data, allows it to be transferred through a limited-bandwidth medium and/or to significantly reduce the required storage capacity for this purpose.

Method for four-dimensional intra-prediction coding and decoding of light field data

A hardware-friendly transform method in codecs for plenoptic point clouds. Given that existing video-based point cloud compression codec (V-PCC) is based on multimedia processor video codecs embedded in System-on-Chip (SoC) mobile devices, the remaining V-PCC steps should be as efficient as possible to ensure fair power consumption. In this sense, the method seeks to reduce the complexity of the transform, using integer transforms and imposing limits on the number of distinct transform dimensions, in which these limits are designed in order to minimize the losses of coding efficiency.

Hardware-friendly transform method in codecs for plenoptic point clouds

The present invention relates to a method for compressing light-fields by exploiting their overall 4D redundancy using a hybrid approach that combines the benefits of sparse coding approach with pseudo-video sequence or multi-view coding to explore the inter-SAI redundancy and achieves very competitive results. This redundancy is particularly high when the light-fields are densely sampled. Therefore, this invention is especially efficient for densely sampled light-fields, such as the ones acquired by light-field cameras.

Method for compressing light-field data

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Campinas, Brazil

Ismael Seidel