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.

Date of Patent:
Mar. 16, 2021

Filed:

Jun. 02, 2017
Applicant:

Google Inc., Mountain View, CA (US);

Inventors:

Ondrej Stava, San Jose, CA (US);

Michael Hemmer, San Francisco, CA (US);

Assignee:

Google LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 17/00 (2006.01); G06T 17/20 (2006.01); G06T 9/00 (2006.01); A63F 13/52 (2014.01); G06T 15/00 (2011.01);
U.S. Cl.
CPC ...
G06T 17/20 (2013.01); A63F 13/52 (2014.09); G06T 9/00 (2013.01); G06T 15/005 (2013.01); A63F 2300/66 (2013.01); G06T 2200/04 (2013.01);
Abstract

Techniques of compressing triangular mesh data involve encoding a bitstream that defines a traversal order for vertices in a triangular mesh. The encoded bitstream defining the traversal order is in addition to an encoded bitstream of prediction errors and is an explicit, rather than implicit, traversal. One example of a bitstream that defines a traversal order is an array in which a bit signifies whether a step in an implicit, deterministic scheme such as a depth-first traversal. Upon decoding, the usual deterministic steps are used to find the vertices of the triangular mesh unless specified by the traversal bitstream. Such an encoded bitstream, when occupying less memory than that saved from the compression efficiencies gained in defining the traversal order defined in the bitstream, offers a simple, efficient compression without requiring that the triangular mesh be connected.


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