公开(公告)号：US20170221184A1

公开(公告)日：2017-08-03

申请号：US15420868

申请日：2017-01-31

Applicant: VALVE CORPORATION

Inventor： Alex Vlachos ,  Kenneth Barnett

IPC: G06T5/00 ,  G06T1/20

CPC classification number: G06T1/20 ,  G06T11/40

Abstract: Systems and methods for implementing radial density masking graphics rendering for use in applications such as head mounted displays (“HMDs”) are described. Exemplary algorithms are disclosed, according to which image resolution varies within an image depending on the distance of a particular point on the image from one or more fixation points. Reconstruction algorithms according to certain embodiments include three stages: (1) hole filling; (2) cross-cell blending; and (3) Gaussian blur.

公开(公告)号：US10241566B2

公开(公告)日：2019-03-26

申请号：US14933955

申请日：2015-11-05

Applicant: VALVE CORPORATION

Inventor： David Sawyer ,  Kenneth Birdwell ,  Kenneth Barnett ,  Tristan Reidford ,  Aaron Leiby ,  Emily Ridgway ,  Alexander C. Vlachos

IPC: G06F3/01 ,  G02B27/01 ,  G02B27/00

Abstract: Sensory feedback (“chaperoning”) systems and methods for guiding users in virtual/augmented reality environments such as walk-around virtual reality environments are described. Exemplary implementations assist with preventing collisions with objects in the physical operating space in which the user acts, among other potential functions and/or uses.

公开(公告)号：US11334145B2

公开(公告)日：2022-05-17

申请号：US16353422

申请日：2019-03-14

Applicant: Valve Corporation

Inventor： David Sawyer ,  Kenneth Birdwell ,  Kenneth Barnett ,  Tristan Reidford ,  Aaron Leiby ,  Emily Ridgway ,  Alexander C. Vlachos

IPC: G06F3/01 ,  G02B27/01 ,  G02B27/00

Abstract: Sensory feedback (“chaperoning”) systems and methods for guiding users in virtual/augmented reality environments such as walk-around virtual reality environments are described. Exemplary implementations assist with preventing collisions with objects in the physical operating space in which the user acts, among other potential functions and/or uses.

公开(公告)号：US10311540B2

公开(公告)日：2019-06-04

申请号：US15420868

申请日：2017-01-31

Applicant: VALVE CORPORATION

Inventor： Alex Vlachos ,  Kenneth Barnett

IPC: G06T1/20

Abstract: Systems and methods for implementing radial density masking graphics rendering for use in applications such as head mounted displays (“HMDs”) are described. Exemplary algorithms are disclosed, according to which image resolution varies within an image depending on the distance of a particular point on the image from one or more fixation points. Reconstruction algorithms according to certain embodiments include three stages: (1) hole filling; (2) cross-cell blending; and (3) Gaussian blur.

公开(公告)号：US20190304051A1

公开(公告)日：2019-10-03

申请号：US16391078

申请日：2019-04-22

Applicant: Valve Corporation

Inventor： Alex Vlachos ,  Kenneth Barnett

IPC: G06T1/20 ,  G06T11/40

Abstract: Systems and methods for implementing radial density masking graphics rendering for use in applications such as head mounted displays (“HMDs”) are described. Exemplary algorithms are disclosed, according to which image resolution varies within an image depending on the distance of a particular point on the image from one or more fixation points. Reconstruction algorithms according to certain embodiments include three stages: (1) hole filling; (2) cross-cell blending; and (3) Gaussian blur.

公开(公告)号：US11107178B2

公开(公告)日：2021-08-31

申请号：US16391078

申请日：2019-04-22

Applicant: Valve Corporation

Inventor： Alex Vlachos ,  Kenneth Barnett

IPC: G06T1/20 ,  G06T11/40

Abstract: Systems and methods for implementing radial density masking graphics rendering for use in applications such as head mounted displays (“HMDs”) are described. Exemplary algorithms are disclosed, according to which image resolution varies within an image depending on the distance of a particular point on the image from one or more fixation points. Reconstruction algorithms according to certain embodiments include three stages: (1) hole filling; (2) cross-cell blending; and (3) Gaussian blur.

公开(公告)号：US20190212812A1

公开(公告)日：2019-07-11

申请号：US16353422

申请日：2019-03-14

Applicant: Valve Corporation

Inventor： David Sawyer ,  Kenneth Birdwell ,  Kenneth Barnett ,  Tristan Reidford ,  Aaron Leiby ,  Emily Ridgway ,  Alexander C. Vlachos

IPC: G06F3/01 ,  G02B27/00 ,  G02B27/01

CPC classification number: G06F3/011 ,  G02B27/0093 ,  G02B27/017 ,  G02B2027/014 ,  G02B2027/0167

Abstract: Sensory feedback (“chaperoning”) systems and methods for guiding users in virtual/augmented reality environments such as walk-around virtual reality environments are described. Exemplary implementations assist with preventing collisions with objects in the physical operating space in which the user acts, among other potential functions and/or uses.