Electronics and Telecommunications Research Institute

Industry-university Cooperation Foundation Hanyang University

Jeung Chul Park

Bon Ki Koo

Ji Young Park

Ho Won Kim

Chang Woo Chu

Seong Jae Lim

Beom Ryeol Lee

Il Kwon Jeong

Yong Ho Lee

Seung Wook Lee

Ji Hyung Lee

Jin Seo Kim

Il Kyu Park

Young Jik Lee

Bon Woo Hwang

Euee Seon Jang

Kap Kee Kim

Wookho Son

Wook Ho Son

Yoon-Seok Choi

Jae Chul Kim

YongHo Lee

Daiyong Kim

Byoungjun Kim

Jaebum Jun

Kyoung Soo Son

Giseok Son

Hyung Jae Son

Provided is a method and device for outputting a large-capacity 3D model for an augmented reality (AR) device. A method of outputting a large-capacity 3D model for an AR device includes generating a multi-texture and a 3D mesh based on a multi-view image, generating a 3D model using the multi-texture and the 3D mesh, and transmitting, to the AR device, an image of the 3D model in a view, to which a camera of the AR device is directed, according to camera movement and rotation information of the AR device, and the AR device outputs the image in the view, to which the camera is directed.

Method and device for outputting large-capacity 3D model for AR device

The present disclosure relates to a method of and an apparatus for generating a space for sharing augmented reality content among multiple participants. With the method and the apparatus, an object for configuring a virtual space, which is proposed in an actual space, can also be proposed, in a spatial matching manner on a per-user basis, inside a common sharing space in augmented reality content by utilizing the technology of generating a space for sharing augmented reality content among multiple participants.

Method of and apparatus for generating space for sharing augmented reality content among multiple participants

Provided is a method of generating multi-view immersive content. The method includes obtaining a multi-view background image from a plurality of cameras arranged in a curved shape, modeling the obtained multi-view background image to generate a codebook corresponding to the multi-view background image, obtaining a multi-view image including an object from the plurality of cameras and separating a foreground and a background from the obtained multi-view image by using the generated codebook, and synthesizing the object included in the separated foreground with a virtual background to generate multi-view immersive content.

Device and method of generating multi-view immersive content

A method and apparatus for quickly generating a natural appearing terrain image. The method according to an exemplary embodiment may include generating a new terrain image through a patch-based synthesis from one or more virtual noise-based terrain models and one or more realistic terrain models; and processing blending of a boundary between synthesized terrain images in the newly generated terrain image.

Method and apparatus for quickly generating natural terrain

A method for creating a 3D face model by using multi-view image information, includes: creating a mesh structure for expressing an appearance of a 3D face model by using a first multi-view image obtained by capturing an expressionless face of a performer; and locating joints of a hierarchical structure in the mesh structure, by using a second multi-view image obtained by capturing an expression performance of the performer. Further, the method includes creating a 3D face model that is animated to enable reproduction of a natural expression of the performer, by setting dependency between the joints and the mesh structure.

Method and apparatus for creating 3D face model by using multi-view image information

An apparatus for 3D mesh compression based on quantization, includes a data analyzing unit () for decomposing data of an input 3D mesh model into vertices information () property information () representing property of the 3D mesh model, and connectivity information () between vertices constituting the 3D mesh model: and a mesh model quantizing unit () for producing quantized vertices and property information of the 3D mesh model by using the vertices, property and connectivity information (). Further, the apparatus for 3D mesh compression based on quantization includes a decision bit encoding unit () for calculating a decision bit by using the quantized connectivity information and then encoding the quantized vertex information, property information and connectivity information () by using the decision bit.

Method and apparatus for real time 3D mesh compression, based on quanitzation

A method for producing a 3D facial animation using a single facial video stream, includes producing a representative joint focused on a major expression producing element in a 3D standard facial model, producing a statistical feature-point model of various facial expressions of different people in the 3D standard facial model, moving each feature-point of the statistical feature-point model by tracking a change in facial expressions of the video stream, calculating a transformation coefficient of the representative joint corresponding to a variation of the feature-point of the 3D standard facial model, and producing a 3D facial animation by applying the calculated transformation coefficient to transform the representative joint.

Method and system for producing 3D facial animation

Provided is a camera self-calibration method that calculates a focal length of a fixed zoom lens camera from a correspondence point position between images. In the method, a cost function, which is a function of a focal length, is defined, and a focal length that minimizes the defined cost function is obtained to obtain a focal length that allows 3D recovery results of correspondence points calculated from all image pairs coincide with one another. Therefore, reliability of the calculated focal length can be easily verified, and the focal length of the camera can be stably calculated even when the position of input correspondence point is inaccurately given.

Apparatus and method for estimating focal length of camera

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Daejeon, South Korea

Jeung Chul Park