公开(公告)号：US11951394B2

公开(公告)日：2024-04-09

申请号：US17235528

申请日：2021-04-20

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Junhwan Jang ,  Woochool Park ,  Jinwook Yang ,  Sangpil Yoon ,  Minsu Choi ,  Junsuk Lee ,  Suho Song ,  Bonjae Koo

IPC: H04N23/698 ,  A63F13/5252

CPC classification number: A63F13/5252 ,  H04N23/698

Abstract: 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.

公开(公告)号：US12198279B2

公开(公告)日：2025-01-14

申请号：US18056144

申请日：2022-11-16

Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTE

Inventor： Junhwan Jang ,  Woochool Park ,  Jinwook Yang ,  Minsu Choi ,  Junsuk Lee ,  Bonjae Koo

IPC: G06T19/00 ,  H04N13/167 ,  H04N13/194

Abstract: 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.