Electronics and Telecommunications Research Institute

Sang Woon Kwak

Jong Hwa Kwon

Dong-Uk Sim

Joung Il Yun

Nam Ho Hur

Chang-Joo Kim

Je Hoon Yun

Kug Jin Yun

Hyung Do Choi

Hyoung Soo Lim

Young Su Kim

Myung Sun Baek

Gwang Soon Lee

Won Sik Cheong

Young Ju Jeong

Jun Young Jeong

Hong Chang Shin

Jin Hwan Lee

A video decoding method comprises warping different viewpoint images into a virtual viewpoint by using depth information of an input viewpoint; determining a first weight for the pixels based on quality and depth of pixels of the warped viewpoint images; determining a second weight for the pixels based on a location relation between the pixels of the warped viewpoint images and the virtual viewpoint; determining a blending weight for the pixels based on the first weight and the second weight; blending the warped viewpoint images according to the blending weight; and synthesizing an image of the virtual viewpoint based on the blended viewpoint images.

Method and apparatus for virtual viewpoint image synthesis by mixing warped image

The present disclosure provides an apparatus and a method for selecting camera providing input images to synthesize virtual view images. According to the present disclosure, A method of selecting a camera providing as input image to synthesize a virtual view image, the method may comprise, for a camera providing an input image, determining whether or not the camera is comprised in a field of view (FoV) at a virtual view position and in response to the camera determined to be comprised in the field of view, selecting the camera to synthesize the virtual image, wherein the determining determines, by way of comparison, whether or not a direction from the virtual view position to a position of the camera is in the FoV at the virtual view position.

Apparatus and method for selecting camera providing input images to synthesize virtual view images

Disclosed herein is an immersive video processing method. The immersive video processing method may include classifying a multiplicity of view videos into a base view and an additional view, generating a residual video for the additional view video classified as an additional view, packing a patch, which is generated based on the residual video, into an atlas video, and generating metadata for the patch.

Method for processing immersive video and method for producing immersive video

Disclosed is a method and apparatus for providing an omni-directional stereoscopic image based on layer projection. According to an embodiment of the present disclosure, there is provided a method of providing an omni-directional stereoscopic image based on layer projection, the method including: obtaining a spatial-information-point set; and generating a layer image based on a spatial-information-point subset constructed for each of multiple layers, the layer image corresponding to each of the multiple layers, wherein the spatial-information-point subset constructed for each of two consecutive layers includes one or more duplicate spatial information points.

Method and apparatus for providing 6DoF omni-directional stereoscopic image based on layer projection

Disclosed is an apparatus and method for supporting cooperative transmission, the apparatus including a controller configured to determine detection bits with respect to a plurality of relay terminals based on channel states between a source terminal and the plurality of relay terminals, the relay terminals configured to detect sub-data corresponding to the detection bits from data when the data is transmitted from the source terminal, an interface configured to receive the sub-data from the relay terminals, respectively, in response to the relay terminals detecting the sub-data, and a restorer configured to restore the data by combining the received sub-data.

Apparatus and method for supporting cooperative transmission

A Faster-Than-Nyquist (FTN) signal transmission apparatus and method thereof. The signal transmission apparatus includes a pilot interference estimator and compensator configured to estimate interference on pilot symbols by a Faster-Than-Nyquist (FTN) signal generated by FTN modulating a sequence of data symbols, and generate a compensated pilot symbol sequence to cancel the estimated interference; a pilot FTN modulator configured to generate an FTN pilot signal in which inter-pilot symbol interference does not occur, by performing FTN pulse-shaping on the compensated pilot symbol sequence; and a transmitter configured to transmit an FTN data signal and the FTN pilot signal.

Faster-Than-Nyquist (FTN) signal transmission apparatus and method thereof

A multilayer board for suppressing unwanted electromagnetic waves and noise includes: a power plane and a ground plane constituting a power distribution network; an electromagnetic wave suppression structure placed on the power plane or the ground plane; and a decoupling capacitor placed on the power plane or the ground plane, wherein the electromagnetic wave suppression structure and the decoupling capacitor are placed together.

Multilayer board for suppressing unwanted electromagnetic waves and noise

An electromagnetic absorber using resistive material includes a ground plane of a conductive material; a dielectric layer formed on the ground plane; and a pattern layer in which specific unit cell patterns made of a resistive material are periodically arranged on the dielectric layer. The electromagnetic absorber is applied to an electronic toll collection system, a transportation device, a building structure, an electronic device and an anechoic chamber.

Electromagnetic absorber using resistive material

An antenna system includes an antenna transmitting and receiving a signal; a power feeding line feeding electric power to the antenna; and a metal conductor ground electrically connected to the power feeding line. Further, the metal conductor ground includes an electromagnetic bandgap.

Antenna system having electromagnetic bandgap

An electromagnetic wave absorber includes a ground layer made of a metal conductor, a dielectric layer formed on the ground layer, and a unit cell pattern made of a resistive material, and formed on the dielectric layer. The unit cell pattern includes a fundamental patch having a regular square shape, in which a rectangular recess is formed on the center of each of the respective sides, the fundamental patch being located at the center of each of the unit cell pattern, and half cross dipole patches, which are respectively disposed at the four sides of the fundamental patch at a regular angle so as to be engaged with the recesses formed on the respective sides of the fundamental patch at a regular interval.

Electromagnetic wave absorber using resistive material

An electromagnetic-wave suppression structure in a multilayer PCB or package structure is supplied with a power to be used therein by a power distribution network including a power plane and a ground plane. The multilayer PCB and package includes: an electromagnetic-wave suppression structure including an electromagnetic band-gap; and the electromagnetic-wave suppression structure is formed at a specific portion(s) of the power plane and/or the ground plane to suppress noises.

Growing community of inventors

Daejeon, South Korea

Sang Woon Kwak