Korea Electronics Technology Institute

Bonjae Koo

Woochool Park

Minsu Choi

Junsuk Lee

Junhwan Jang

Jinwook Yang

Sangpil Yoon

Suho Song

Proposed are a mediation server operation method for an XR streaming service and XR streaming system supporting same, the mediation server operation method comprising the steps of: if a mediation server receives an XR content playback request from a connected user device, searching for an idle split rendering server; allocating the found idle split rendering server to the user device; receiving image data and sensor data from the user device; generating a rotation matrix on the basis of the received image data and sensor data; and transmitting the rotation matrix to the allocated split rendering server.

XR streaming system for lightweight XR device and operation method therefor

A content server and method supporting low-latency content streaming are proposed. The content server may include a communication unit and a controller. The communication unit may perform communication with a user terminal. The controller may calculate coordinates for a current user's location and camera pose and create a three-dimensional (3D) space by using terminal data including an image received from the user terminal upon detecting access of the user terminal. Also, the controller may position an object in the created 3D space, render a video reproduced from a user's viewpoint as a two-dimensional (2D) video, generate server data by segmenting the rendered 2D video, and transmit the generated server data to the user terminal.

Content server and method supporting low-latency content streaming

An edge server for providing a virtual reality (VR) image is proposed. The server may include a rendering synchronization unit synchronizing a visual field and a margin with a virtual reality device. The server may also include a rendering unit generating a rendered image by rendering a visual field area corresponding to the visual field and a margin area corresponding to the margin based on a rotation center in an entire virtual reality image. The server may further include an encoding unit generating a reduced margin area by dividing a resolution of the margin area by a scaling factor, and encoding the visual field area and the reduced margin area to generate a split virtual reality image including the encoded visual field area and the encoded reduced margin area. The server may further include a streaming transmission unit transmitting the split virtual reality image to the virtual reality device.

Apparatus and method for providing split-rendered virtual reality image

An image acquisition apparatus for acquiring an in-game 360 virtual reality (VR) image by using a plurality of virtual cameras includes a virtual camera group taking in-game images by using the plurality of virtual cameras. The image acquisition apparatus may also include a renderer generating textures for the taken images, generating a panoramic image by performing an equirectangular projection (ERP) mapping of the generated textures, and encoding the generated panoramic image. The image acquisition apparatus may further include an image generator generating a 360 VR image by combining audio information with the encoded panoramic image.

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Suwon-si, South Korea

Bonjae Koo