公开(公告)号：US11880952B2

公开(公告)日：2024-01-23

申请号：US17864780

申请日：2022-07-14

Applicant: Dalian University of Technology

Inventor： Qiufen Xia ,  Zhuangze Hou ,  Zichuan Xu

IPC: G06T19/00

CPC classification number: G06T19/006 ,  G06T2219/008

Abstract: The disclosure discloses a method and system for adjusting user field of view (FoV) in a three-dimensional virtual reality (VR) scene. The method includes: acquiring two consecutive frames of scene pictures during a period of a user experiencing a VR scene by using a VR device; determining a projected scene flow vector on the basis of the two consecutive frames of scene pictures; generating a virtual scene graph of the two consecutive frames of scene pictures; determining a projected scene flow value of the virtual scene graph on the basis of the projected scene flow vector; determining a peripheral vision pixel of the virtual scene graph; calculating a projected scene flow average value of the peripheral vision pixel on the basis of the projected scene flow value of the virtual scene graph; and dynamically adjust a FoV of the user on the basis of the projected scene flow average value.

公开(公告)号：US20230360335A1

公开(公告)日：2023-11-09

申请号：US17864780

申请日：2022-07-14

Applicant: Dalian University of Technology

Inventor： Qiufen Xia ,  Zhuangze Hou ,  Zichuan Xu

IPC: G06T19/00

CPC classification number: G06T19/006 ,  G06T2219/008

Abstract: The disclosure discloses a method and system for adjusting user field of view (FoV) in a three-dimensional virtual reality (VR) scene. The method includes: acquiring two consecutive frames of scene pictures during a period of a user experiencing a VR scene by using a VR device; determining a projected scene flow vector on the basis of the two consecutive frames of scene pictures; generating a virtual scene graph of the two consecutive frames of scene pictures; determining a projected scene flow value of the virtual scene graph on the basis of the projected scene flow vector; determining a peripheral vision pixel of the virtual scene graph; calculating a projected scene flow average value of the peripheral vision pixel on the basis of the projected scene flow value of the virtual scene graph; and dynamically adjust a FoV of the user on the basis of the projected scene flow average value.