WO2022246388A1 - Estimation de paramètres intrinsèques dans des systèmes de poursuite visuelle - Google Patents

Estimation de paramètres intrinsèques dans des systèmes de poursuite visuelle Download PDF

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Publication number
WO2022246388A1
WO2022246388A1 PCT/US2022/072347 US2022072347W WO2022246388A1 WO 2022246388 A1 WO2022246388 A1 WO 2022246388A1 US 2022072347 W US2022072347 W US 2022072347W WO 2022246388 A1 WO2022246388 A1 WO 2022246388A1
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WO
WIPO (PCT)
Prior art keywords
camera
temperature
features
intrinsic parameters
image
Prior art date
Application number
PCT/US2022/072347
Other languages
English (en)
Inventor
Clemens Birklbauer
Georg HALMETSCHLAGER-FUNEK
Matthias Kalkgruber
Kai ZHOU
Original Assignee
Snap 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 US17/448,655 external-priority patent/US11688101B2/en
Application filed by Snap Inc. filed Critical Snap Inc.
Priority to CN202280036148.3A priority Critical patent/CN117356089A/zh
Priority to KR1020237042533A priority patent/KR20240006644A/ko
Priority to EP22738521.8A priority patent/EP4342176A1/fr
Publication of WO2022246388A1 publication Critical patent/WO2022246388A1/fr

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20Image signal generators
    • H04N13/204Image signal generators using stereoscopic image cameras
    • H04N13/246Calibration of cameras
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20Image signal generators
    • H04N13/204Image signal generators using stereoscopic image cameras
    • H04N13/243Image signal generators using stereoscopic image cameras using three or more 2D image sensors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20Image signal generators
    • H04N13/271Image signal generators wherein the generated image signals comprise depth maps or disparity maps
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/90Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)

Abstract

L'invention concerne un procédé de réglage de paramètres intrinsèques de caméra d'un dispositif de poursuite visuelle à caméras multiples. Selon un aspect de l'invention, un procédé d'étalonnage du système de suivi visuel à caméras multiples consiste à désactiver une première caméra du système de poursuite visuelle à caméras multiples tandis qu'une seconde caméra du système de poursuite visuelle à caméras multiples est activée, à détecter un premier ensemble de caractéristiques dans une première image générée par la première caméra après avoir détecté que la température de la première caméra se situait à l'intérieur du seuil de la température d'étalonnage d'usine de la première caméra, et à accéder à et à corriger des paramètres intrinsèques de la seconde caméra sur la base de la projection du premier ensemble de caractéristiques dans la seconde image et d'un second ensemble de caractéristiques dans la seconde image.
PCT/US2022/072347 2021-05-18 2022-05-16 Estimation de paramètres intrinsèques dans des systèmes de poursuite visuelle WO2022246388A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202280036148.3A CN117356089A (zh) 2021-05-18 2022-05-16 视觉跟踪系统中的固有参数估计
KR1020237042533A KR20240006644A (ko) 2021-05-18 2022-05-16 시각적 추적 시스템들에서의 고유 파라미터들의 추정
EP22738521.8A EP4342176A1 (fr) 2021-05-18 2022-05-16 Estimation de paramètres intrinsèques dans des systèmes de poursuite visuelle

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202163189935P 2021-05-18 2021-05-18
US63/189,935 2021-05-18
US17/448,655 2021-09-23
US17/448,655 US11688101B2 (en) 2021-05-18 2021-09-23 Intrinsic parameters estimation in visual tracking systems

Publications (1)

Publication Number Publication Date
WO2022246388A1 true WO2022246388A1 (fr) 2022-11-24

Family

ID=82446454

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2022/072347 WO2022246388A1 (fr) 2021-05-18 2022-05-16 Estimation de paramètres intrinsèques dans des systèmes de poursuite visuelle

Country Status (1)

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WO (1) WO2022246388A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11688101B2 (en) 2021-05-18 2023-06-27 Snap Inc. Intrinsic parameters estimation in visual tracking systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150193949A1 (en) * 2014-01-06 2015-07-09 Oculus Vr, Llc Calibration of multiple rigid bodies in a virtual reality system
US20170094255A1 (en) * 2015-09-25 2017-03-30 Intel Corporation Online compensation of thermal distortions in a stereo depth camera
US20180329484A1 (en) * 2017-05-09 2018-11-15 Microsoft Technology Licensing, Llc Object and environment tracking via shared sensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150193949A1 (en) * 2014-01-06 2015-07-09 Oculus Vr, Llc Calibration of multiple rigid bodies in a virtual reality system
US20170094255A1 (en) * 2015-09-25 2017-03-30 Intel Corporation Online compensation of thermal distortions in a stereo depth camera
US20180329484A1 (en) * 2017-05-09 2018-11-15 Microsoft Technology Licensing, Llc Object and environment tracking via shared sensor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NIKOLIC JANOSCH ET AL: "Maximum Likelihood Identification of Inertial Sensor Noise Model Parameters", IEEE SENSORS JOURNAL, IEEE, USA, vol. 16, no. 1, 1 January 2016 (2016-01-01), pages 163 - 176, XP011594532, ISSN: 1530-437X, [retrieved on 20151211], DOI: 10.1109/JSEN.2015.2476668 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11688101B2 (en) 2021-05-18 2023-06-27 Snap Inc. Intrinsic parameters estimation in visual tracking systems

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