公开(公告)号：US20190204154A1

公开(公告)日：2019-07-04

申请号：US16055460

申请日：2018-08-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： In Su JANG ,  Soon Chul JUNG ,  Yoon Seok CHOI ,  Jin Seo KIM

IPC: G01J3/46 ,  G06T7/90 ,  G01J3/457 ,  H04N1/60

Abstract: A method and apparatus for combining colorants using a camera. The method of combining colorants using a camera includes extracting color data from an image of an object captured using a camera, converting the color data into spectral reflection factor data of the object on the basis of a pre-constructed camera color model, acquiring spectral reflection factor data for an estimated colorant combination obtained by simulating a combination of colorant samples obtained from a colorant database, and selecting an optimal colorant combination by comparing errors between the spectral reflection factor data of the object and the spectral reflection factor data for the estimated colorant combination. Therefore, it is possible to use a highly accessible and inexpensive camera, such as a smartphone camera, and thus an ordinary user can easily find an optimal colorant combination.

公开(公告)号：US20180268616A1

公开(公告)日：2018-09-20

申请号：US15919613

申请日：2018-03-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Yoon Seok CHOI ,  Seung Woo NAM ,  Soon Chul JUNG ,  In Su JANG ,  Jin Seo KIM

IPC: G06T19/20 ,  G06T15/04 ,  B29C64/20 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/02

CPC classification number: G06T19/20 ,  B29C64/20 ,  B29C64/386 ,  B29C64/393 ,  B33Y30/00 ,  B33Y50/00 ,  B33Y50/02 ,  G06T15/04 ,  G06T2219/2021

Abstract: A method of generating 3D printing data performed by an apparatus for generating 3D printing data includes generating a 3D model of an object; generating a surface height map from a texture image indicating a surface texture of the object; setting an area in which the surface height map is projected on a surface of the 3D model; slicing the 3D model into a plurality of cross-section segments; and correcting a shape of at least a portion among the cross-section segments in consideration of the area in which the surface height map is projected on the 3D model.

公开(公告)号：US20170256093A1

公开(公告)日：2017-09-07

申请号：US15292635

申请日：2016-10-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Yoon Seok CHOI ,  Seung Woo NAM ,  In Su JANG ,  Soon Chul JUNG ,  Jin Seo KIM ,  Soon Young KWON

IPC: G06T17/20 ,  G06T15/20 ,  G06K9/00 ,  G06T15/08 ,  G06K9/46 ,  G06T19/20

CPC classification number: G06T17/20 ,  A41G7/00 ,  G06K9/00214 ,  G06K9/00248 ,  G06T19/20 ,  G06T2219/2021

Abstract: An apparatus for generating 3-dimensional (3D) volume mask model and a method therefor. The apparatus includes a 2D mask data collector, a 3D mask model generator, and a 3D mask model adjuster, whereby 2D mask data is generated from a 2D mask image designed by a user, a 2D mask mesh is created based on inner and outer contour feature points, a 2D mask is transformed into a 3D model according to the user's settings, and the generated 3D mask model is modified to fit on a facial shape of a person who will wear the mask, and a 3D mask volume model is generated, which is immediately printed by a 3D printer to produce a 3D mask.