公开(公告)号：US20210256721A1

公开(公告)日：2021-08-19

申请号：US17151939

申请日：2021-01-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kap Kee KIM ,  BonKi KOO

IPC: G06T7/593 ,  G06T5/50

Abstract: An apparatus for enhancing a disparity map generates a disparity map of a reference image by performing stereo matching for each stereo image, divides the reference image into at least one homogeneous area based on a homogeneity criterion, extracts valid disparity values from the disparity map of the reference image, calculates a linear rate of change for the valid disparity values in each homogeneous area divided based on the extracted valid disparity values, and enhances the disparity map by updating invalid disparity values in a corresponding homogeneous area using the linear rate of change calculated for each homogeneous area.

公开(公告)号：US20190074853A1

公开(公告)日：2019-03-07

申请号：US16121387

申请日：2018-09-04

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kap Kee KIM ,  Il Kyu PARK ,  Chang Joon PARK ,  Jin Sung CHOI

IPC: H03M13/47 ,  B33Y50/00 ,  B29C64/386

CPC classification number: H03M13/47 ,  B29C64/386 ,  B33Y50/00 ,  G06T17/20

Abstract: Disclosed is a method of detecting and correcting an error in a 3D mesh model. According to the present disclosure, the method includes: determining at least one mesh on the basis of half-edge information; setting at least one cluster including the at least one mesh, on the basis of normal vector information on the at least one mesh; detecting a flip error of the at least one cluster; and correcting the at least one mesh in the at least one cluster in which the flip error is detected.

公开(公告)号：US20150228081A1

公开(公告)日：2015-08-13

申请号：US14609887

申请日：2015-01-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kap Kee KIM ,  Seung Uk YOON ,  Bon Woo HWANG ,  Seong Jae LIM ,  Hye Ryeong JUN ,  Jin Sung CHOI ,  Bon Ki KOO

IPC: G06T7/00 ,  H04N13/02 ,  G06K9/00

CPC classification number: G06T7/593 ,  G06T2207/30201 ,  H04N13/117 ,  H04N13/239 ,  H04N13/243 ,  H04N13/282 ,  H04N2013/0081

Abstract: Provided is a method and apparatus for reconstructing a three-dimensional (3D) face based on a stereo camera, the method including: acquiring n images of a target by controlling a plurality of stereo cameras in response to an image acquirement request, wherein n denotes a natural number; extracting n face regions from the n images, respectively; and reconstructing a viewpoint-based face image based on the n face regions.

Abstract translation: 本发明提供了一种基于立体相机重构三维（3D）面部的方法和装置，该方法包括：响应于图像获取请求，通过控制多个立体相机来获取目标的n个图像，其中n表示 自然数 分别从n个图像中提取n个面部区域; 以及基于所述n个面部区域重建基于视点的面部图像。

公开(公告)号：US20240257468A1

公开(公告)日：2024-08-01

申请号：US18537544

申请日：2023-12-12

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Kap Kee KIM ,  Bonki KOO

IPC: G06T17/30 ,  G06T15/20

CPC classification number: G06T17/30 ,  G06T15/20

Abstract: Disclosed is an operation method of an electronic device, the method including: identifying a first quaternion value corresponding to rotation of a first object and a second quaternion value corresponding to rotation of a second object; identifying, on the basis of the first quaternion value, a first axis around which the first object rotates; identifying, on the basis of the second quaternion value, a second axis around which the second object rotates; identifying a first rotation angle related to rotation of the first object around the first axis, and a second rotation angle related to rotation of the second object around the second axis; identifying a first angle formed by the first and second axes; identifying a second angle corresponding to a difference between the first and second rotation angles; and determining a quaternion distance between the first and second objects on the basis of the first and second angles.

公开(公告)号：US20140192045A1

公开(公告)日：2014-07-10

申请号：US14147773

申请日：2014-01-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Bon Woo HWANG ,  Kap Kee KIM ,  Seong Jae LIM ,  Seung Uk YOON ,  Hye Ryeong JUN ,  Bon Ki KOO ,  Jin Sung CHOI

IPC: G06T15/04

CPC classification number: G06T15/02 ,  G06T17/00

Abstract: Provided is a method and apparatus for generating a three-dimensional (3D) caricature. The apparatus for generating a 3D caricature may include a 3D face data generation unit to generate 3D face data of a user corresponding to a shape and a texture of a face of the user, a 3D unique face model generation unit to generate a 3D unique face model using a shape and a texture of a unique face based on the 3D face data and a reference face, and a 3D caricature generation unit to generate a 3D caricature using the 3D unique face model and a caricature base face model.

Abstract translation: 提供了一种用于生成三维（3D）漫画的方法和装置。 用于生成3D漫画的装置可以包括3D面部数据生成单元，用于生成与用户的脸部的形状和纹理相对应的用户的3D面部数据，3D独特面部模型生成单元，用于生成3D独特面部 使用基于3D面部数据和参考面的独特面部的形状和纹理的模型，以及使用3D独特面部模型和漫画基础面部模型来生成3D漫画的3D漫画生成单元。

公开(公告)号：US20140204089A1

公开(公告)日：2014-07-24

申请号：US14157636

申请日：2014-01-17

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seong Jae LIM ,  Kap Kee KIM ,  Seung Uk YOON ,  Bon Woo HWANG ,  Hye Ryeong JUN ,  Jin Sung CHOI ,  Bon Ki KOO

IPC: G06T15/08

CPC classification number: G06K9/00221 ,  G06K9/00208 ,  G06K9/00275 ,  G06T15/00 ,  G06T17/00 ,  G06T2200/08

Abstract: Disclosed is a method and apparatus for creating a three-dimensional (3D) montage. The apparatus for creating a 3D montage may include an image information extraction unit to extract image information from a face image to be reconstructed, using a face area based on statistical feature information and a feature vector, a 3D unique face reconstruction unit to reconstruct a 3D unique face model by fitting a 3D standard face model to face images of each view for the face image and feature information of each part for the face area, a 3D montage model generation unit to generate a 3D montage model by combining the reconstructed 3D unique face model with 3D face expression model information and 3D decoration model information, and a montage image generation unit to generate a montage image by projecting the generated 3D montage model from each view.

Abstract translation: 公开了一种用于创建三维（3D）蒙太奇的方法和装置。 用于创建3D蒙太奇的设备可以包括：图像信息提取单元，用于使用基于统计特征信息和特征向量的面部区域从要重建的面部图像提取图像信息; 3D独特面部重建单元，用于重建3D 通过拟合3D标准面部模型来面对面部图像的每个视图的图像和面部区域的每个部分的特征信息，3D蒙太奇模型生成单元，通过将重建的3D独特面组合来生成3D蒙太奇模型来生成3D蒙太奇模型 具有3D面部表情模型信息和3D装饰模型信息的模型，以及蒙太奇图像生成单元，通过从每个视图投影生成的3D蒙太奇模型来生成蒙太奇图像。

公开(公告)号：US20190304185A1

公开(公告)日：2019-10-03

申请号：US16374602

申请日：2019-04-03

Applicant: Electronics and Telecommunications Research Institute

Inventor： Il Kyu PARK ,  Kap Kee KIM ,  Chang Joon PARK ,  Jin Sung CHOI

IPC: G06T17/20

Abstract: Disclosed is 3D information processing method and apparatus. The method of processing three-dimensional (3D) information for an object according to an embodiment of the present invention includes converting mesh model-based 3D information into 3D information of a half-edge structure; dividing a shell region of the object on the basis of connection information of half-edges included in the 3D information of the half-edge structure; determining at least one hole region of the object using the 3D information of the half-edge structure; determining at least one hole group obtained by grouping the at least one hole region of the object; and applying face information to the at least one hole group.

公开(公告)号：US20160169764A1

公开(公告)日：2016-06-16

申请号：US14721060

申请日：2015-05-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kap Kee KIM ,  Chang Woo CHU ,  Jin Sung CHOI

IPC: G01M1/00 ,  B29C67/00

CPC classification number: G05B19/4099 ,  B29C64/00 ,  B33Y50/00 ,  G05B2219/49011

Abstract: Provided are a system and method for pre-verifying stability such that a 3D printing output can be balanced on the center thereof even without a support or a fixture. The system for pre-verifying stability of a 3D printing output includes a slicing unit configured to slice a 3D object, a distance map creating unit configured to create a distance map of each plane obtained by slicing the 3D object, a safety zone searching unit configured to search for a stability safety zone of the sliced 3D object, a stability verifying unit configured to verify stability of the 3D object using the stability safety zone, and a stability securing unit configured to determine a position of an inner mesh of the 3D object.

Abstract translation: 提供了一种用于预先验证稳定性的系统和方法，使得即使没有支撑或固定装置也可以在其中心上平衡3D打印输出。 用于预先验证3D打印输出的稳定性的系统包括：被配置为切割3D对象的切片单元;距离图生成单元，被配置为创建通过对3D对象进行切片获得的每个平面的距离图;配置 搜索所述切片3D对象的稳定性安全区域，被配置为使用所述稳定性安全区域来验证所述3D对象的稳定性的稳定性验证单元以及被配置为确定所述3D对象的内部网格的位置的稳定性确保单元。

公开(公告)号：US20140168216A1

公开(公告)日：2014-06-19

申请号：US14102783

申请日：2013-12-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kap Kee KIM ,  Bon Woo HWANG ,  Seung Uk YOON ,  Seong Jae LIM ,  Hye Ryeong JUN ,  Jin Sung CHOI ,  Bon Ki KOO

IPC: G06T17/00

CPC classification number: G06T17/00

Abstract: A 3D avatar output device and method are disclosed. The 3D avatar output device of a vending machine type may include an input data receiving unit to receive input data including at least one of user information, a 3D avatar theme, and a 3D avatar output form; an image obtaining unit to obtain an image of a user through a camera included in the 3D avatar output device; a restoration model generation unit to generate a restoration model by extracting a facial area from the obtained image; a unique model generation unit to generate a unique model of the user based on the input data and the restoration model; and a 3D avatar output unit to generate a 3D avatar corresponding to the unique model and output the 3D avatar according to the 3D avatar output form.

Abstract translation: 公开了3D头像输出装置和方法。 自动售货机类型的3D头像输出装置可以包括输入数据接收单元，用于接收包括用户信息，3D头像主题和3D头像输出形式中的至少一个的输入数据; 图像获取单元，用于通过包括在3D头像输出装置中的相机获得用户的图像; 恢复模型生成单元，通过从所获得的图像中提取面部区域来生成恢复模型; 一种独特的模型生成单元，用于基于输入数据和恢复模型生成用户的唯一模型; 以及3D头像输出单元，用于生成与唯一模型相对应的3D头像，并根据3D头像输出形式输出3D头像。