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:
Nov. 29, 2016
Filed:
Apr. 12, 2012
Feifei He, Shenzhen, CN;
Jian Hui, Shenzhen, CN;
Gengmao Sun, Shenzhen, CN;
Feng Gao, Shenzhen, CN;
Zhibin Pan, Shenzhen, CN;
Da LI, Shenzhen, CN;
Jingyuan LI, Shenzhen, CN;
Feifei He, Shenzhen, CN;
Jian Hui, Shenzhen, CN;
Gengmao Sun, Shenzhen, CN;
Feng Gao, Shenzhen, CN;
Zhibin Pan, Shenzhen, CN;
Da Li, Shenzhen, CN;
Jingyuan Li, Shenzhen, CN;
ZTE Corporation, Shenzhen, Guangdong, CN;
Abstract
A device for compressing vertex data in three-dimensional (3D) image data includes a codebook design module and a codeword search module. The codebook design module is configured for: grouping residual vectors of vertices in 3D image data for codebook design; generating, for each group of residual vectors, a sub-codebook formed by a specified number of codewords; and sending the generated sub-codebook corresponding to a group of residual vectors to the codeword search module. The codeword search module is configured for: receiving a sub-codebook sent by the codebook design module; searching for a codeword of optimal match of a to-be-compressed residual vector of a vertex in 3D image data to be compressed; and taking an index of the codeword of optimal match and an index of a sub-codebook where the codeword of optimal match is located as compressed data of the vertex. A method for compressing vertex data in 3D image data is further disclosed. With the disclosure, it is possible to save codeword storage space, enhance encoding quality, improve a compression ratio of vertex data, and increase a compression efficiency.