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公开(公告)号:US10857736B2
公开(公告)日:2020-12-08
申请号:US16556657
申请日:2019-08-30
Applicant: Hewlett-Packard Development Company, L.P.
IPC: B29C64/386 , B33Y50/02 , H04N1/405 , B29C64/393 , G05B19/4099 , H04N1/52 , B33Y50/00
Abstract: Methods and apparatus relating to substructures for three-dimensional objects are described. In an example, a processing apparatus includes: an interface to receive data representing a three-dimensional model object, the data including object model data and object property data; a mapping module to map received data to a print material coverage representation; a halftone module to provide halftone threshold data; and a substructure module to define a substructure for a three-dimensional object to be generated, the substructure specifying in at least a region thereof a consistent lattice structure and a variable material distribution. The apparatus is to apply a substructure and a halftoning to the print material coverage representation to generate control data for the production of a three-dimensional object having the substructure.
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公开(公告)号:US20200320357A1
公开(公告)日:2020-10-08
申请号:US16303500
申请日:2016-07-29
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Jan Morovic , Peter Morovic
IPC: G06K15/02
Abstract: A method is described in which colorant-space calibration data for a colorant-space image processing pipeline are determined. The colorant-space calibration data are converted into probability-space calibration data for a probability-space image processing pipeline. The probability-space calibration data are applied to image data processed in the probability-space image processing pipeline.
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公开(公告)号:US20200186680A1
公开(公告)日:2020-06-11
申请号:US16614952
申请日:2017-07-28
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Jan Morovic , Peter Morovic , Josep Abad Peiro
Abstract: A method is disclosed wherein data representative of a plurality of colors defined In a color space is received, the plurality of colors providing a color palette taken to be related to each other by predefined color harmony rules based on their relative positions in the color space. An irreproducible color of the color palette outside a rendering system's reproducible color gamut is determined, the reproducible color gamut having been received for a rendering system on which image data comprising colors of the color palette is to be reproduced. A suggested color for a replacement color palette also complying with the predefined color harmony rules is determined based on the reproducible color gamut to bring the color palette towards being within the rendering system's reproducible color gamut.
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公开(公告)号:US10668666B2
公开(公告)日:2020-06-02
申请号:US15746759
申请日:2015-10-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Peter Morovic , Jan Morovic
IPC: B29C64/393 , B33Y10/00 , B29C67/00 , B33Y50/00 , B29C64/165 , H04N1/60 , B33Y50/02 , G06T17/00
Abstract: In some examples, a plurality of print material combinations for object generation are determined, each print material combination having an associated color. A plurality of color descriptions may be determined, the color descriptions corresponding to a combination of voxels, each of the voxels of the combination of voxels having a defined print material combination and a defined depth with respect to a surface. A color mapping resource may be defined, the color mapping resource associating a color description with a print instruction, each print instruction being for use in causing an object generation apparatus to generate the combination of voxels corresponding to the associated color description.
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公开(公告)号:US20200166407A1
公开(公告)日:2020-05-28
申请号:US16633330
申请日:2017-09-08
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Jan Morovic , Peter Morovic , Jordi Arnabat Benedicto
Abstract: A method is described. The method comprises determining a lightness coordinate value corresponding to a first color value along a black-white axis in an input device color space. A set of color values corresponding to the lightness coordinate value, in the input device color space is determined. A subset of the set, based on the respective angular positions of the color values in the set and an angular position of the first color value is determined. The method comprises deriving a set of print color space values of a target printing system comprising print color space values corresponding to the subset and a color value corresponding to the position of the lightness coordinate value, based on a predetermined association between input device color space values and print color space values. The method comprises determining a given print color space value corresponding to the first color value based on the derived set of print color space values.
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公开(公告)号:US10661506B2
公开(公告)日:2020-05-26
申请号:US15540343
申请日:2015-02-05
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: Juan Manuel Garcia Reyero Vinas , Utpal Kumar Sarkar , Peter Morovic , Jan Morovic
IPC: B29C64/393 , G06T17/00 , B33Y50/02 , G05B19/4099 , G06T15/20
Abstract: Cells of an n-dimensional object are indexed. A plurality of indexing digits are grouped for each axis of the n dimensions of the n-dimensional object. A first indexing digit of a given group is allocated to each of at least two cells resulting from at least one subdivision of the dimension of the object along the axis of the given group; and an mth subsequent indexing digit of the given group is allocated to any subsequent at least two cells resulting from any subsequent at least one subdivision of at least one cell of the at least two cells resulting from the m−1th subdivision of the dimension of the object along the axis of the given group.
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公开(公告)号:US10659656B2
公开(公告)日:2020-05-19
申请号:US16298790
申请日:2019-03-11
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Peter Morovic , Jan Morovic , Jay S. Gondek
IPC: H04N1/405 , B33Y50/00 , B29C64/386 , B29C64/165 , B29C64/112
Abstract: According to examples, area coverage vectors for each pixel on each slice of a digital representation of an object may be determined and a two-dimensional halftone matrix including threshold values may be subdivided into a plurality of sub-matrices, each sub-matrix including threshold values of the halftone matrix in a respective value sub-range. In addition, for each of the slices, a sub-matrix of the plurality of sub-matrices may be selected and the area coverage vectors for the pixels in the slice may be halftoned using respective threshold values of the selected sub-matrix.
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公开(公告)号:US10574853B2
公开(公告)日:2020-02-25
申请号:US15564409
申请日:2015-07-30
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Peter Morovic , Jan Morovic , Matthew D. Gaubatz
Abstract: Certain examples described herein relate to the embedding a pattern in an output content having at least two-dimensions, for example a printed output. Content data having at least two dimensions is processed to generate an array of spatial elements, each spatial element corresponding to a respective location in the output content and comprising a probabilistic distribution for a set of output material compositions. A threshold matrix is generated using pattern data corresponding to a pattern, and the array of spatial elements is halftoned using the threshold matrix. The threshold matrix is generated such that the pattern is embedded in the output content.
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公开(公告)号:US10479121B2
公开(公告)日:2019-11-19
申请号:US15546216
申请日:2015-01-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor: Jan Morovic , Peter Morovic
Abstract: A method for processing an object for printing, the object comprising a plurality of properties defined at each of a plurality of locations within the object, each property represented by a metamer set of possible combinations of proportions of at least one of a set of printing materials, the method comprising: selecting a combination of the metamer sets of a given location within an object that provides all of the plurality of properties defined for the given location.
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公开(公告)号:US10442135B2
公开(公告)日:2019-10-15
申请号:US15541541
申请日:2015-01-30
Applicant: Hewlett-Packard Development Company, L.P. , Peter Morovic , Jan Morovic
Inventor: Peter Morovic , Jan Morovic
IPC: B29C64/386 , B33Y50/00 , G06F17/50
Abstract: Certain examples described herein relate to apparatus arranged to produce a three-dimensional object. These examples enable color and material properties of such an apparatus to be characterized. This is achieved through the generation of configuration data for the apparatus that maps at least one color property to one or more material volume coverage vector values. This allows for appropriate quantities of materials available to the apparatus to be used to produce colors defined in received object data for the three-dimensional object.
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