公开(公告)号：US20230267654A1

公开(公告)日：2023-08-24

申请号：US18158408

申请日：2023-01-23

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Woontack Woo ,  Dooyoung Kim

IPC: G06T11/00 ,  G06T3/40

CPC classification number: G06T11/00 ,  G06T3/40

Abstract: The present disclosure provides a system for modifying a virtual reality (VR) space, which generates a mutual movable space between an augmented reality (AR) host's reference space and a VR client's space, the system including an acquisition unit that acquires a size of the AR host's reference space, a processing unit that estimates a relative translation gain threshold by adjusting the client's walking speed for each axis of the VR space according to the size of the reference space, and a generation unit that generates the mutual movable space in which movement is possible in mixed reality (MR) with a relative translation gain based on the relative translation gain threshold.

公开(公告)号：US20220358712A1

公开(公告)日：2022-11-10

申请号：US17630498

申请日：2020-02-18

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Woontack Woo ,  Hochul Cho

IPC: G06T15/20 ,  G06T17/20

Abstract: A method and a system for synthesizing a novel-view image based on multiple 360 images for 6DOF virtual reality, in which a large-scale 6-DOF virtual environment is implemented, and a scene is synthesized at a novel viewpoint, are provided. The method includes performing a 3D reconfiguration procedure for the 360 images to recover 3D geometric information, and to reconfigure a virtual data map in which the multiple 360 images are integrated into one image, producing a view image corresponding to a viewpoint of a user by applying a view synthesis algorithm of projection & vertex warping process using a reference image which is closest to a viewpoint extracted from the virtual data map, and blending view images for 6DoF through a section formula for inner split based on a distance between a position of the reference image and a position of the viewpoint.

公开(公告)号：US20240153133A1

公开(公告)日：2024-05-09

申请号：US18259615

申请日：2021-01-25

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Woontack Woo ,  Gabyong Park ,  Tae Kyun Kim

IPC: G06T7/73 ,  G06T7/11 ,  G06T7/174 ,  G06T7/246

CPC classification number: G06T7/74 ,  G06T7/11 ,  G06T7/174 ,  G06T7/248 ,  G06T2207/10028 ,  G06T2207/10048 ,  G06T2207/20081 ,  G06T2207/30196

Abstract: The present invention relates to a hand position estimation method and system for estimating a 3-dimensional hand position for quick hand movement, on the basis of domain transfer learning from a depth image to an infrared image, the hand position estimation method comprising the steps of: processing a depth image and an infrared image for hand movement; synthesizing a depth map with the infrared image by using a hand image generator (HIG), and estimating skeletal positions of hand joints from each of the depth map and an infrared map; and calculating a 3-dimensional hand position by using the skeletal positions and the center of a hand depth image.