CA2949105C - Procedes et systemes de suppression de turbulences atmospheriques dans des images - Google Patents

Procedes et systemes de suppression de turbulences atmospheriques dans des images Download PDF

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Publication number
CA2949105C
CA2949105C CA2949105A CA2949105A CA2949105C CA 2949105 C CA2949105 C CA 2949105C CA 2949105 A CA2949105 A CA 2949105A CA 2949105 A CA2949105 A CA 2949105A CA 2949105 C CA2949105 C CA 2949105C
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Canada
Prior art keywords
coefficients
video
image blocks
noise
video image
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CA2949105A
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English (en)
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CA2949105A1 (fr
Inventor
Alessandro Foi
Vladimir Katkovnik
Pavlo Molchanov
Enrique SANCHEZ-MONGE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Noiseless Imaging Ltd Oy
Teledyne Flir LLC
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Noiseless Imaging Ltd Oy
Flir Systems Inc
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Priority claimed from US14/720,086 external-priority patent/US9811884B2/en
Publication of CA2949105A1 publication Critical patent/CA2949105A1/fr
Application granted granted Critical
Publication of CA2949105C publication Critical patent/CA2949105C/fr
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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/80—Geometric correction
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20182—Noise reduction or smoothing in the temporal domain; Spatio-temporal filtering

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)

Abstract

La présente invention concerne diverses techniques pour supprimer des distorsions dans des images, telles que des distorsions causées par des turbulences atmosphériques. Par exemple, des blocs d'image similaires d'une séquence d'images peuvent être identifiés et suivis le long de trajectoires de mouvement pour construire des volumes spatiotemporels. Les trajectoires de mouvement sont lissées pour estimer les positions véritables des blocs d'image sans déplacements aléatoires dus aux distorsions, et les trajectoires lissées sont utilisées pour agréger les blocs d'image dans leurs nouvelles positions estimées afin de reconstruire la séquence d'images avec les déplacements aléatoires supprimés. Le flou qui peut rester à l'intérieur de chaque bloc d'image des volumes spatiotemporels peut être supprimé par modification des volumes spatiotemporels d'une manière collaborative. Par exemple, une transformée de décorrélation peut être appliquée aux volumes spatiotemporels afin de supprimer le flou dans un domaine de transformée, tel que par une opération sur des racines alpha ou d'autres opérations appropriées sur les coefficients des volumes spectraux.
CA2949105A 2014-05-23 2015-05-22 Procedes et systemes de suppression de turbulences atmospheriques dans des images Active CA2949105C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201462002731P 2014-05-23 2014-05-23
US62/002,731 2014-05-23
US14/720,086 US9811884B2 (en) 2012-07-16 2015-05-22 Methods and systems for suppressing atmospheric turbulence in images
PCT/US2015/032302 WO2015179841A1 (fr) 2014-05-23 2015-05-22 Procédés et systèmes de suppression de turbulences atmosphériques dans des images
US14/720,086 2015-05-22

Publications (2)

Publication Number Publication Date
CA2949105A1 CA2949105A1 (fr) 2015-11-26
CA2949105C true CA2949105C (fr) 2020-03-24

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ID=53396573

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CA2949105A Active CA2949105C (fr) 2014-05-23 2015-05-22 Procedes et systemes de suppression de turbulences atmospheriques dans des images

Country Status (3)

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CA (1) CA2949105C (fr)
IL (1) IL248876A0 (fr)
WO (1) WO2015179841A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10726863B2 (en) 2015-04-27 2020-07-28 Otocon Inc. System and method for locating mobile noise source
TWI702595B (zh) * 2018-03-30 2020-08-21 維呈顧問股份有限公司 移動噪音源的檢測系統與方法
US12541671B1 (en) * 2019-09-05 2026-02-03 Nvidia Corporation Processor and system to encode sequence data in neural networks
CN119126846B (zh) * 2024-11-13 2025-02-18 江西省军民融合研究院 基于图像识别分析的无人机精确位置降落方法及系统
CN120334915B (zh) * 2025-06-20 2025-09-12 东北大学 一种时序InSAR湍流层延迟校正的轻量级深度学习方法及装置

Also Published As

Publication number Publication date
IL248876A0 (en) 2017-01-31
CA2949105A1 (fr) 2015-11-26
WO2015179841A1 (fr) 2015-11-26

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