公开(公告)号：US20190149698A1

公开(公告)日：2019-05-16

申请号：US16098101

申请日：2016-07-13

Applicant: Jan MOROVIC ,  Hector GOMEZ MI-NANO ,  Hewlett-Packard Development Company, L.P.

Inventor： Jan Morovic ,  Hector Gomez Minano ,  Peter Morovic

IPC: H04N1/60 ,  H04N1/00 ,  G06K15/02 ,  G01J3/46

Abstract: A method is described in which sets of corresponding colorimetric values are obtained. In a set, a colorimetric value is associated with a device color. A number of device colors are selected according to the color differences between colorimetric values associated with the same device color. A color calibration pattern is elaborated for a printer to be calibrated using the selected device colors and calibration is performed using the sets of colorimetric values.

公开(公告)号：US20190116291A1

公开(公告)日：2019-04-18

申请号：US16088897

申请日：2016-04-22

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Javier Maestro Garcia ,  Jan Morovic ,  Peter Morovic

IPC: H04N1/52 ,  G09G3/20 ,  G06K9/62 ,  G06K9/46

Abstract: From a statistical distribution of different color states in an image subdivided in pixels, pixel color states are selected by performing comparisons between predetermined values and values associated to per-pixel state probabilities. Errors (based on drifts between selected color states and per-pixel state probabilities) are diffused to per-pixel state probabilities of subsequent pixels.

公开(公告)号：US10205849B2

公开(公告)日：2019-02-12

申请号：US15306974

申请日：2014-04-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. ,  Jan Morovic ,  Peter Morovic ,  Juan Manuel Garcia Reyero Vinas ,  Ronald Albert Askeland ,  Andreas Muller ,  Michel Georges Encrenaz

Inventor： Jan Morovic ,  Peter Morovic ,  Juan Manuel Garcia Reyero Vinas ,  Ronald Albert Askeland ,  Andreas Muller ,  Michel Georges Encrenaz

IPC: H04N1/405 ,  H04N1/60 ,  H04N1/54

Abstract: A processing apparatus is provided. The processing apparatus includes a controller to process information as part of a Halftone Area Neugebauer Separation printing process to use at least one opaque ink as a process colorant in combination with at least one further process colorant.

公开(公告)号：US20180319086A1

公开(公告)日：2018-11-08

申请号：US15766316

申请日：2016-01-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Peter J. Klammer ,  Karl Walters ,  Peter Morovic ,  Jan Morovic

IPC: B29C64/393 ,  G06K19/06 ,  B29C64/112 ,  B29C64/336 ,  B33Y50/02 ,  B33Y40/00

CPC classification number: B29C64/393 ,  B29C64/112 ,  B29C64/336 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02 ,  G06F17/50 ,  G06K19/06159

Abstract: In some examples, a system generates three-dimensional (3D) object data for printing by a 3D printing system, the generating including determining a region in which to generate a wear indicator, and computing an arrangement of spatial shells of variable thickness in the region, where the spatial shells contain data representing at least one property of the wear indicator.

公开(公告)号：US20180316827A1

公开(公告)日：2018-11-01

申请号：US15766090

申请日：2016-01-20

Applicant: Jan MOROVIC ,  Peter MOROVIC ,  HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jan Morovic ,  Peter Morovic

IPC: H04N1/60 ,  G06T1/20 ,  H04N1/41 ,  G06F3/12 ,  B33Y50/00

CPC classification number: H04N1/6063 ,  B33Y50/00 ,  G06F3/122 ,  G06F3/1239 ,  G06T1/20 ,  H04N1/40068 ,  H04N1/41

Abstract: A method of processing data in a multi-stage imaging pipeline, the method comprising, at each stage of the multi-stage imaging pipeline, identifying a plurality of encoding values represented in received input data in a given encoding space for the respective pipeline stage, the identified plurality of encoding values comprising a subset of encoded values which are capable of being represented in the given encoding space, generating a list of encoding indices corresponding to the identified plurality of encoded values in the given encoding space, representing the encodings of one or more entities of the received input data using the generated list of encoding indices, and outputting the represented encodings of the one or more entities to the next stage of the multi-stage imaging pipeline.

公开(公告)号：US20180262652A1

公开(公告)日：2018-09-13

申请号：US15760788

申请日：2016-01-29

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Jan Morovic ,  Peter Morovic

IPC: H04N1/60 ,  G06K15/10

Abstract: In an example, a method includes characterising, using at least one computer, an initial gamut from an initial set of color mappings from a source color space to a printing device color space. The method may further include characterising, using at least one computer, an initial gamut from an initial set of color mappings from a source color space to a printing device color space. The method may further include characterising, using the at least one computer, a printing device color gamut. The method may further include transforming, using the at least one computer, the initial set of color mappings to form a transformed set of color mappings mapping from the source color space to the printing device color gamut.

公开(公告)号：US20180117897A1

公开(公告)日：2018-05-03

申请号：US15545038

申请日：2015-04-21

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jun Zeng ,  Pu Huang ,  Sebastia Cortes ,  Scott White ,  Juan Manuel Garcia ,  Peter Morovic ,  Jan Morovic

IPC: B33Y50/02 ,  B29C64/393

CPC classification number: B33Y50/02 ,  B29C64/393 ,  G06T17/005

Abstract: In some examples, octree serialization can include non-transitory machine-readable medium storing instructions, the instructions executable by a processing resource to evaluate two or more nodes sequentially in an octree structure until a leaf node is reached, wherein the two or more nodes include at least one non-leaf node, and generate a serialized octree document based on a respective node identifier in a header associated with each node of the two or more nodes.

公开(公告)号：US09936102B2

公开(公告)日：2018-04-03

申请号：US15305627

申请日：2014-04-25

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jan Morovic ,  Peter Morovic ,  Juan Manuel Garcia Reyero Vinas ,  Marti Rius Rossell

IPC: H04N1/60 ,  H04N1/52 ,  H04N1/54

CPC classification number: H04N1/6019 ,  H04N1/52 ,  H04N1/54 ,  H04N1/6008 ,  H04N1/6016 ,  H04N1/6058

Abstract: A method for color mapping is disclosed. A color mapping is generated based on an imaging model and a color model for an imaging device. The imaging model allows a set of perturbations to be modelled. A set of metamers is determined for one or more colors. For each metamer, at least the imaging model is used to estimate a color output with at least one modelled perturbation. The color outputs are used to select a metamer from the set to be used for the color mapping.

公开(公告)号：US09936100B2

公开(公告)日：2018-04-03

申请号：US15128511

申请日：2014-03-31

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Juan Manuel Garcia Reyero Vinas ,  Jan Morovic ,  Peter Morovic ,  Lluis Abello Rosello

IPC: H04N1/405 ,  H04N1/60 ,  B41J29/38

CPC classification number: H04N1/4052 ,  B41J29/02 ,  B41J29/38 ,  G06K15/1881 ,  H04N1/40062 ,  H04N1/405 ,  H04N1/6086

Abstract: A printing system and method to process image data is disclosed. The printing system includes an identification module and image pipeline module include a linear threshold array algorithm and a halftoning algorithm to process the image data. An image pipeline module applies a linear threshold array algorithm to line regions and a halftoning algorithm to the non-line regions.

公开(公告)号：US20180018810A1

公开(公告)日：2018-01-18

申请号：US15539599

申请日：2015-01-30

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Jan Morovic ,  Peter Morovic

IPC: G06T15/08 ,  G06T15/10

CPC classification number: G06T15/08 ,  B33Y50/00 ,  G06T15/10 ,  G06T15/503 ,  G06T2200/04 ,  G06T2210/62

Abstract: Methods and apparatus relating to previews of objects are described. In one example, control data for generating a three-dimensional object specifying, for voxels of the object, at least one print material to be deposited in that voxel during object generation is obtained. A viewing frustum may be determined, and visible voxels within the viewing frustum identified. A number of preview display pixels to display the preview may be determined and the set of voxels to be represented by each preview display pixel identified. At least one voxel appearance parameter of a voxel may be determined from the control data. For each preview display pixel, at least one pixel appearance parameter may be determined by combining voxel appearance parameters for the set of voxels to be represented by that preview display pixel. Preview display pixels may be controlled to display a preview of the object according to the at least one pixel appearance parameter.