WO2018044584A1 - Procédés et appareil relatifs à la capture et/ou au rendu d'images - Google Patents

Procédés et appareil relatifs à la capture et/ou au rendu d'images Download PDF

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Publication number
WO2018044584A1
WO2018044584A1 PCT/US2017/047456 US2017047456W WO2018044584A1 WO 2018044584 A1 WO2018044584 A1 WO 2018044584A1 US 2017047456 W US2017047456 W US 2017047456W WO 2018044584 A1 WO2018044584 A1 WO 2018044584A1
Authority
WO
WIPO (PCT)
Prior art keywords
camera
image
calibration
map
markers
Prior art date
Application number
PCT/US2017/047456
Other languages
English (en)
Inventor
David Cole
Alan Mckay Moss
Hector M. MEDINA
Original Assignee
Nextvr Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US15/255,135 external-priority patent/US9894350B2/en
Application filed by Nextvr Inc. filed Critical Nextvr Inc.
Publication of WO2018044584A1 publication Critical patent/WO2018044584A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/80—Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/80—Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
    • G06T7/85—Stereo camera calibration
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/60—Type of objects
    • G06V20/64—Three-dimensional objects
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2200/00—Indexing scheme for image data processing or generation, in general
    • G06T2200/04—Indexing scheme for image data processing or generation, in general involving 3D image data
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10004—Still image; Photographic image
    • G06T2207/10012—Stereo images
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30204—Marker
    • G06T2207/30208—Marker matrix
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V2201/00—Indexing scheme relating to image or video recognition or understanding
    • G06V2201/12—Acquisition of 3D measurements of objects

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

Des informations d'étalonnage de caméra et/ou d'objectif sont générées en tant que partie d'un processus d'étalonnage de systèmes vidéo comprenant des systèmes à contenus immersifs tridimensionnels (3D). Les informations d'étalonnage peuvent être utilisées pour corriger des distorsions associées à la caméra et/ou à l'objectif source. Un profil d'étalonnage peut comprendre des informations suffisantes pour permettre au système de corriger une distorsion/variation de la caméra et/ou de l'objectif. Ceci peut être assuré par capture d'une image d'étalonnage d'un objet physique en 3D correspondant à l'environnement 3D simulé, et par création du profil d'étalonnage par traitement de l'image d'étalonnage. Le profil d'étalonnage peut ensuite être utilisé pour projeter le contenu source directement dans l'espace de visualisation 3D tout en tenant également compte de la distorsion/variation, et sans traduction préalable dans un espace intermédiaire (par exemple, un espace rectiligne) visant à tenir compte de la distorsion de l'objectif.
PCT/US2017/047456 2016-08-31 2017-08-17 Procédés et appareil relatifs à la capture et/ou au rendu d'images WO2018044584A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201662382251P 2016-08-31 2016-08-31
US62/382,251 2016-08-31
US15/255,135 2016-09-01
US15/255,135 US9894350B2 (en) 2015-02-24 2016-09-01 Methods and apparatus related to capturing and/or rendering images

Publications (1)

Publication Number Publication Date
WO2018044584A1 true WO2018044584A1 (fr) 2018-03-08

Family

ID=61301559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2017/047456 WO2018044584A1 (fr) 2016-08-31 2017-08-17 Procédés et appareil relatifs à la capture et/ou au rendu d'images

Country Status (1)

Country Link
WO (1) WO2018044584A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021021155A1 (fr) * 2019-07-31 2021-02-04 Hewlett-Packard Development Company, L.P. Visiocasques

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150130951A1 (en) * 2013-10-28 2015-05-14 The Regents Of The University Of Michigan Interactive camera calibration tool
US20150288956A1 (en) * 2014-04-08 2015-10-08 Lucasfilm Entertainment Company, Ltd. Calibration target for video processing
US20160073101A1 (en) * 2014-09-05 2016-03-10 Todd Keaffaber Multi-target camera calibration
US20160182903A1 (en) * 2014-12-19 2016-06-23 Disney Enterprises, Inc. Camera calibration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150130951A1 (en) * 2013-10-28 2015-05-14 The Regents Of The University Of Michigan Interactive camera calibration tool
US20150288956A1 (en) * 2014-04-08 2015-10-08 Lucasfilm Entertainment Company, Ltd. Calibration target for video processing
US20160073101A1 (en) * 2014-09-05 2016-03-10 Todd Keaffaber Multi-target camera calibration
US20160182903A1 (en) * 2014-12-19 2016-06-23 Disney Enterprises, Inc. Camera calibration

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021021155A1 (fr) * 2019-07-31 2021-02-04 Hewlett-Packard Development Company, L.P. Visiocasques
CN114270243A (zh) * 2019-07-31 2022-04-01 惠普发展公司， 有限责任合伙企业 头戴式显示器

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