Kt Corporation

Kang-Tae Kim

I-Gil Kim

Chan-Hui Kang

Young-Jun So

A user device and a server provide a VR experience service to a user without significant interruption in response to a user's movement. In particular, the server may create a stitched image of a 360-degree video of a predetermined virtual environment according to a user movement state and transmit the stitched image to a user device. The user device may i) receive, from a server through a wireless link, a stitched image of a 360-degree video of a predetermined virtual environment which is dynamically changed according to a user movement state and ii) render a stereoscopic image at a user's view-point which is dynamically changed according to a user's head movement, using the received stitched image of the 360-degree view of the predetermined virtual environment.

Providing virtual reality experience service

Provided are providing a virtual reality (VR) contents streaming service. For providing the VR contents, a server may be configured to receive a request message for requesting a predetermined VR contents from a user device through a communication network, determine a field of view (FOV) area in each image frame of the predetermined VR contents and a plurality of extended areas adjacent to the FOV area, receive a viewing area switching request from the user device, wherein the viewing area switching request includes information on a viewing area switching direction and a viewing area switching speed, calculate a size of each extended area based on at least one of the viewing area switching direction, the viewing area switching speed, and a location of an object to be displayed in each extended area, redecide a FOV area and a plurality of extended areas based on the calculated size of each extended area, and encode image data of the redecided FOV area and image data of the plurality of redecided extended areas and transmitting the encoded image data to the user device.

Growing community of inventors

Seoul, South Korea

Kang-Tae Kim