Electronics and Telecommunications Research Institute

National University of Sciences & Technology

Industry-University Cooperation Foundation Hanyang University

Ideahub Inc.

Gwangju Institute of Science and Technology

Sejong University

Net & Tv Inc.

Net N Tv, Inc.

Ji Hun Cha

Yong Ju Cho

Joo Myoung Seok

Seong Yong Lim

Sang Woo Ahn

Jin Woong Kim

Yong Ju Lee

Seung Kwon Beack

Myung Seok Ki

Rehan Hafiz

Arshad Ali

Jae Young Ahn

Eun Young Chang

Euee Seon Jang

Ashar Rasul

Muhammad Murtaza Khan

Sang Beom Lee

Won Sik Cheong

Kyu Heon Kim

Byoung Sun Lee

Yo Sung Ho

Young Kwon Lim

Yoo La Hwang

Yong Jun Lee

Hee Kyung Lee

Whoi Yul Kim

Seung Jun Yang

Byung Woon Park

Cheol Soon Lim

Kyu Tae Kim

Seong Dae Kim

Su Gil Choi

Ji Sung Yoo

Sung Soo Hwang

Min Ku Lee

Dong Chan Cho

Muhammad Murtaza

In Jae Lee

Saleh Saeed

Muhammad Umer Kakli

You Sun Park

Unsang Park

Tian Yu Dong

Atif Ahmed

Wook Joong Kim

Haris Anis

Mutahir Latif

Ye Sun Joung

Provided is a method of compressing an occupancy map of a three-dimensional (3D) point cloud, and more specifically, a method of compressing an occupancy map of a point cloud in which an occupancy map image of a point cloud existing in a 3D space is compressed based on a compression quality or a patch-by-patch inspection method of the occupancy map image so that compression distortion is minimized when reconstructing the compressed occupancy map image so as to remarkably improve the quality of a reconstructed occupancy map image.

Method of compressing occupancy map of three-dimensional point cloud

There is provided a method of decoding point cloud data, the method comprising: decoding a bitstream to obtain attribute information of point cloud data, acquiring attributes of the point cloud data using the decoded attribute information and reconstructing the point cloud data using the obtained attributes, wherein the attribute information contains bit depth information of each attribute of the point cloud data.

3D point cloud data encoding/decoding method and apparatus

The present invention provides a method of performing a position measurement on the basis of a signal from a global navigation satellite system (GNSS). The method includes: receiving initial position information; estimating an initial value of a multipath error through a measurement of the GNSS signal on the basis of the received initial position information; estimating a multipath error from the initial value of the multipath error on the basis of a change in the measurement; removing the estimated multipath error from the measurement of the GNSS signal; and performing the position measurement on the basis of the GNSS measurement from which the multipath error is removed.

Method and apparatus for multipath mitigation in GNSS

A method of receiving content in a client is provided. The method may include receiving, from a server, a spatial set identifier (ID) corresponding to a tile group including at least one tile, sending, to the server, a request for first content corresponding to metadata, and receiving, from the server, the first content corresponding to the request.

Apparatus and method for providing content

Rate adaptation is carried out using bit error rate (BER) to enable effective multimedia transmission. The BER can be estimated using signal strength in a MAC layer and modulation information (FIGS.-), and can be compatibly used in different wireless networks by means of message standardization.

Rate adaptation method using bit error rate for multimedia service and apparatus therefor

Disclosed are a method and an apparatus for generating a panoramic image based on an image quality. The method of generating a panoramic image includes extracting a matching point to connect a base image captured by a first camera and a reference image captured by a second camera, geometrically transforming the reference image by determining a homography between the base image and the reference image, determining a change in image quality of the geometrically transformed reference image, and generating a panoramic image in which the geometrically transformed reference image is connected to the base image based on the determined change in image quality.

Apparatus and method for generating panoramic image based on image quality

An apparatus and a method for displaying a panoramic image using a look-up table (LUT) are disclosed, including generating an LUT may include determining first geometric correction information to transform an input domain pixel coordinate system of an input image to a panorama domain pixel coordinate system of a panoramic image, determining second geometric correction information to transform an output domain pixel coordinate system of an output image of the panoramic image to the panorama domain pixel coordinate system of the panoramic image, determining third geometric correction information to transform the output domain pixel coordinate system of the output image to the input domain pixel coordinate system of the input image based on the first geometric correction information and second geometric correction information, and generating an LUT that maps the output domain pixel coordinate system of the output image to the input domain pixel coordinate system of the input image.

System and method for displaying panoramic image using single look-up table

Provided is an apparatus and method for detecting a key point using a high-order Laplacian of Gaussian (LoG) kernel. The high-order LoG kernel is generated based on an LoG operator which is calculated by sequentially differentiating an LoG operator with respect to x and y of an image. A scale space is generated based on the high-order LoG kernel and the key point is detected by comparing a current pixel in the scale space to pixels adjacent to the current pixel.

Apparatus and method for detecting key point using high-order laplacian of gaussian (LoG) kernel

The present specification is related to a method for performing multi-projection and a multi-projection system for minimizing a black offset in a multi-projection environment. The present specification provides the method for performing multi-projection comprising estimating the intensity transfer function (ITF) of a plurality of projectors, calculating an optimal black offset threshold for each of the projectors by using each of the ITFs, and applying the optimal black offset threshold to an image projection by each of the projectors.

Method and system for multi-projection

A gaze tracking apparatus and method are provided that may calculate a three-dimensional (3D) position of a user using at least two wide angle cameras, may perform panning, tilting, and focusing based on position information of the user and eye region detection information, using a narrow angle camera, may detect pupil center information and corneal reflected light information from an eye image acquired through an operation of the narrow angle camera, and may finally calculate gaze position information from the pupil center information and the corneal reflected light information.

Apparatus and method for eye tracking

An image synthesizing method according to the present invention includes generating a depth image in a current picture by searching depth information using a plurality of color images obtained at different view points, performing filtering on the depth image using a 3-dimensional (3D) joint bilateral filter, and generating a synthesized image using the plurality of color images and the filtered depth image, wherein the 3D joint bilateral filter performs filtering on the generated depth image using color image information for at least one of previous pictures, the current picture, and subsequent pictures, and the color image information includes information on a boundary of an object in the color images and color information of the color images. According to the present invention, image processing performance may be enhanced.

Depth video filtering method and apparatus

Growing community of inventors

Daejeon, South Korea

Ji Hun Cha