The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2020
Filed:
Apr. 10, 2019
Samsung Eletrônica Da Amazônia Ltda., Campinas, São Paulo, BR;
Universidade Federal DO Rio DE Janeiro, Rio de Janeiro, BR;
Eduardo Antônio Barros Da Silva, Rio de Janeiro, BR;
Murilo Bresciani De Carvalho, Rio de Janeiro, BR;
Carla Liberal Pagliari, Rio de Janeiro, BR;
Marcio Pinto Pereira, Rio de Janeiro, BR;
Gustavo De Oliveira E Alves, Rio de Janeiro, BR;
Fernando Manuel Bernardo Pereira, Lisbon, PT;
Vanessa Testoni, Campinas, BR;
Pedro Garcia Freitas, Campinas, BR;
SAMSUNG ELETRÔNICA DA AMAZÔNIA LTDA., Campinas, Säo Paulo, BR;
UNIVERSIDADE FEDERAL DO RIO DE JANEIRO, Rio de Janeiro, BR;
Abstract
A method for compressing light field data using variable block-size four-dimensional transform and bit-plane hexadeca-tree decomposition, the method including: partitioning a four-dimensional pixel data of a light field into four-dimensional blocks of independent fixed size; partitioning the four-dimensional blocks in a set of four-dimensional non-overlapping sub-blocks of different sizes according to a rate-distortion criterion; independently transforming the four-dimensional sub-blocks generated in the previous operation, using a four-dimensional transform; quantizing by bit-planes the sub-blocks transformed by the four-dimensional transform according to Rate-Distortion optimized hexadeca-tree structure; and encoding the four-dimensional quantized data generated through an arithmetic encoder to produce a compressed representation of the light field.