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公开(公告)号：US10964034B1
公开(公告)日：2021-03-30
申请号：US16668123
申请日：2019-10-30
Applicant: Nvidia Corporation
Inventor： David Cook
Abstract: Due to the factors such as lens distortion and camera misalignment, stereoscopic image pairs often contain vertical disparities. Introduced herein is a method and apparatus that determine and correct vertical disparities in stereoscopic image pairs using an optical flow map. Instead of discarding vertical motion vectors of the optical flow map, the introduced concept extracts and analyzes the vertical motion vectors from the optical flow map and vertically aligns the images using the vertical disparity determined from the vertical motion vectors. The introduced concept recognizes that although not apparent, vertical motion does exist in stereoscopic images and can be used to correct the vertical disparity in stereoscopic images.
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公开(公告)号：US20200020076A1
公开(公告)日：2020-01-16
申请号：US16036350
申请日：2018-07-16
Applicant: Nvidia Corporation
Inventor： David Cook
IPC: G06T3/40 , H04N13/344 , G06T19/00
Abstract: The disclosure is directed to a method to compensate for visual distortion when viewing video image streams from a multiple camera capture of a scene where the method determines the disparity difference utilizing the user view orientation and then compresses and/or stretches the left and/or right eye video image streams to compensate for the visual distortion. In another aspect, the method describes additional adjustments and corrections to the video image streams including rotating, tilting, shifting, and scaling the video image streams, and correcting for gapping and clipping visual image artifacts. In another aspect, a visual compensation system is described to implement the method. Additionally, a visual compensation apparatus is disclosed to perform the method operations.
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公开(公告)号：US09940898B2
公开(公告)日：2018-04-10
申请号：US15054019
申请日：2016-02-25
Applicant: NVIDIA Corporation
Inventor： David Cook , Lu Liu
CPC classification number: G09G5/006 , G09G5/363 , G09G2340/02 , G09G2360/06 , G09G2360/08 , G09G2360/10 , G09G2360/18 , G09G2370/022 , G09G2370/16
Abstract: A method for displaying video. The method includes executing an application at a processor. As instructed by the processor when executing the application, the method includes rendering a plurality of image frames at a plurality of graphics processing units (GPUs). The method includes determining information related to relative timing between renderings of the plurality of image frames. The method includes encoding the plurality of image frames into a video file. The method includes encoding the information into the video file.
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公开(公告)号：US20210183079A1
公开(公告)日：2021-06-17
申请号：US17184341
申请日：2021-02-24
Applicant: Nvidia Corporation
Inventor： David Cook
Abstract: Due to the factors such as lens distortion and camera misalignment, stereoscopic image pairs often contain vertical disparities. Introduced herein is a method and apparatus that determine and correct vertical disparities in stereoscopic image pairs using an optical flow map. Instead of discarding vertical motion vectors of the optical flow map, the introduced concept extracts and analyzes the vertical motion vectors from the optical flow map and vertically aligns the images using the vertical disparity determined from the vertical motion vectors. The introduced concept recognizes that although not apparent, vertical motion does exist in stereoscopic images and can be used to correct the vertical disparity in stereoscopic images.
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5.发明申请公开(公告)号：US20170237963A1
公开(公告)日：2017-08-17
申请号：US15043718
申请日：2016-02-15
Applicant: Nvidia Corporation
Inventor： David Cook
Abstract: An apparatus for capturing digital stereoscopic images of a scene. The apparatus comprises a first pair of separated camera lens oriented such that a first imaginary line between the first pair of lens is substantially parallel with a horizon line a scene, wherein digital image data is capturable through the first pair of camera lens and storable in two separate digital image data bases corresponding to a left-eye horizontal view and a right-eye horizontal view respectively. The apparatus comprises a second pair of separated camera lens oriented such that a second imaginary line between the second pair of lens is substantially non-parallel with the horizon line, wherein digital image data is capturable through the second pair of camera lens and storable in two separate digital image data bases corresponding to a left-eye off-horizontal view and a right-eye off-horizontal view respectively.
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Patent Agency Ranking
公开(公告)号：US20200021790A1
公开(公告)日：2020-01-16
申请号：US16528422
申请日：2019-07-31
Applicant: Nvidia Corporation
Inventor： David Cook
IPC: H04N13/117 , H04N13/156 , H04N13/361 , H04N13/344
Abstract: The disclosure is directed to a method to generate a stereoscopic video image stream of a zenith or nadir view perspective of a scene. In another aspect, a system is disclosed for generating a zenith or nadir view perspective utilizing a relative user view orientation. In yet another aspect, a video processing computer is disclosed operable to generate a zenith or nadir view perspective utilizing a user view orientation.
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公开(公告)号：US10412361B1
公开(公告)日：2019-09-10
申请号：US16036389
申请日：2018-07-16
Applicant: Nvidia Corporation
Inventor： David Cook
IPC: H04N7/18 , H04N5/77 , H04N13/117 , H04N13/361 , H04N13/344 , H04N13/156 , H04N13/00
Abstract: The disclosure is directed to a method to generate a generated stereoscopic video image stream of a zenith or nadir view perspective of a scene utilizing a blending of stereoscopic and monoscopic view perspectives. In another aspect, a system is disclosed for generating a zenith or nadir view perspective utilizing a relative user view orientation. In another aspect, an apparatus is disclosed capable to generate a zenith or nadir view perspective utilizing a detected user view orientation, and display a generated stereoscopic video image stream of the view perspective.
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公开(公告)号：US20160287988A1
公开(公告)日：2016-10-06
申请号：US15043678
申请日：2016-02-15
Applicant: Nvidia Corporation
Inventor： Jen-Hsun Huang , Spencer Huang , Madison Huang , David Cook
IPC: A63F13/355
CPC classification number: A63F13/847 , A63F13/355 , A63F13/40 , A63F13/798 , A63F13/86 , H04L65/4076 , H04L67/10
Abstract: A system for multi-client control of a common avatar. In one embodiment, the system includes: (1) a cloud game engine for executing game code configured to create a game, generate a video stream corresponding to a particular player and accept a response stream from the particular player to allow the particular player to play the game and (2) a cooperative play engine associated with the cloud game engine for communication therewith and configured to multicast the video stream from the cloud game engine to the particular player and at least one other player, combine separate response streams from the particular player and the at least one other player into a joint response stream based on avatar functions contained therein and provide the joint response stream to the cloud game engine.
Abstract translation: 用于多客户端控制公共化身的系统。 在一个实施例中，系统包括：（1）云游戏引擎，用于执行被配置为创建游戏的游戏代码，生成与特定玩家相对应的视频流，并接收来自特定玩家的响应流，以允许特定玩家播放 游戏和（2）与云游戏引擎相关联的与该游戏引擎相关联的配置游戏引擎，并配置为将来自云游戏引擎的视频流多播到特定玩家和至少一个其他玩家，组合来自特定玩家的单独响应流 并且至少一个其他玩家基于其中包含的头像功能而连接到响应流中，并向云游戏引擎提供联合响应流。
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公开(公告)号：US10997884B2
公开(公告)日：2021-05-04
申请号：US16174600
申请日：2018-10-30
Applicant: Nvidia Corporation
Inventor： David Cook
IPC: G09G5/36 , G09G3/00 , G09G5/00 , A63F13/25 , G06F3/01 , A63F13/212 , A63F13/803
Abstract: The present disclosure is directed to a method to correct for visual artifacts in a virtual reality (VR) video image where there is significant motion of the video image as a result of user actions. A user may request that the video image be moved, such as a through motion detected through a VR device, i.e., turning the head, or through a request to an application, i.e., joystick feedback to a gaming application. The video image motion can cause stutter and jitter visual artifacts, when the video frame buffer uses a synchronization constraint, such as vertical synchronization (VSync). When the VSync is disabled, a tearing visual artifact can be present. This disclosure presents a frame buffer handling process that operates with VSync disabled. The process allows the display refresh rates to operate at higher frequencies, while correcting for significant motion of the video image, i.e., tearing, through shifting back certain pixels within the scanout frame buffer.
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公开(公告)号：US10935788B2
公开(公告)日：2021-03-02
申请号：US14604563
申请日：2015-01-23
Applicant: Nvidia Corporation
Inventor： Patrick Neill , Rochelle Pereira , Vukasin Milovanovic , David Cook
IPC: H04N13/261 , G02B27/01 , H04N13/279 , H04N13/156
Abstract: A method for stereoscopically presenting visual content is disclosed. The method comprises identifying and distinguishing between a first type of content and a second type of content of a frame to be stereoscopically displayed. The method also comprises rendering the first type of content in a first left and a first right frame from a single perspective using a first stereoscopic rendering method. Further, the method comprises rendering the second type of content in a second left and a second right frame using a second, different stereoscopic method from two different perspectives. Additionally, the method comprises merging the first and second left frames and the first and second right frames to produce a resultant left frame and a resultant right frame. Finally, the method comprises displaying the resultant left frame and the resultant right frame for stereoscopic perception by a viewer.
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