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1. EP3469546 - SUB-VOLUME OCTREES

Office
European Patent Office
Application Number 16918471
Application Date 12.10.2016
Publication Number 3469546
Publication Date 17.04.2019
Publication Kind B1
IPC
G06T 13/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
13Animation
G06T 17/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
173D modelling for computer graphics
CPC
B33Y 50/00
BPERFORMING OPERATIONS; TRANSPORTING
33ADDITIVE MANUFACTURING TECHNOLOGY
YADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
50Data acquisition or data processing for additive manufacturing
G06T 17/005
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
17Three dimensional [3D] modelling, e.g. data description of 3D objects
005Tree description, e.g. octree, quadtree
H04N 1/46
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
46Colour picture communication systems
G06T 1/20
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
1General purpose image data processing
20Processor architectures; Processor configuration, e.g. pipelining
G06T 15/08
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
153D [Three Dimensional] image rendering
08Volume rendering
G05B 19/4099
GPHYSICS
05CONTROLLING; REGULATING
BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
19Programme-control systems
02electric
18Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
4097characterised by using design data to control NC machines, e.g. CAD/CAM
4099Surface or curve machining, making 3D objects, e.g. desktop manufacturing
Applicants HEWLETT PACKARD DEVELOPMENT CO
Inventors CARRUESCO LLORENS ALEX
VINACUA ALVAR
BRUNET PERE
GONZALEZ SERGIO
GONZALEZ ROGEL JORDI
COMINO MARC
GIRALT ADROHER JOSEP
ABELLO ROSELLO LLUIS
CORTES I HERMS SEBASTIA
Designated States
Title
(DE) SUB-VOLUME-OKTONÄRBÄUME
(EN) SUB-VOLUME OCTREES
(FR) OCTREES DE SOUS-VOLUME
Abstract
(EN) In an example, a method includes receiving a first data model of an object to be generated in additive manufacturing, at a processor. Using the processor, a second data model may be determined. Determining the second data model may include generating for each of plurality of contiguous, non-overlapping sub-volumes of a volume containing the object, a sub-volume octree characterising the sub-volume and having a root node. Determining the second data model may further include generating a volume octree characterising the volume containing the object, the volume octree characterising in its lowest nodes the root nodes of the sub-volume octrees.
(FR) Dans un exemple, un procédé consiste à recevoir un premier modèle de données d'un objet à générer dans la fabrication additive, au niveau d'un processeur. A l'aide du processeur, un second modèle de données peut être déterminé. La détermination du second modèle de données peut consister à générer, pour chaque sous-volume de la pluralité de sous-volumes contigus, non chevauchants d'un volume contenant l'objet, un octree de sous-volume caractérisant le sous-volume et ayant un noeud racine. La détermination du second modèle de données peut en outre consister à générer un octree de volume caractérisant le volume contenant l'objet, l'octree de volume caractérisant dans ses noeuds les plus bas les noeuds racines des octrees de sous-volume.