FR3117248B1 - Procédé vidéo d’analyse d’une structure mécanique sous charge par amplification de petit déplacement - Google Patents

Procédé vidéo d’analyse d’une structure mécanique sous charge par amplification de petit déplacement Download PDF

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Publication number
FR3117248B1
FR3117248B1 FR2012918A FR2012918A FR3117248B1 FR 3117248 B1 FR3117248 B1 FR 3117248B1 FR 2012918 A FR2012918 A FR 2012918A FR 2012918 A FR2012918 A FR 2012918A FR 3117248 B1 FR3117248 B1 FR 3117248B1
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Prior art keywords
mechanical structure
images
video
small displacement
analyzing
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FR2012918A
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FR3117248A1 (fr
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Julien Christian Pascal Griffaton
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Safran Aircraft Engines SAS
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Safran Aircraft Engines SAS
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Priority to FR2012918A priority Critical patent/FR3117248B1/fr
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/70—Determining position or orientation of objects or cameras
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • 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
    • G06T2207/10016—Video; Image sequence
    • 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
    • G06T2207/30108—Industrial image inspection
    • G06T2207/30132—Masonry; Concrete

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

Procédé d’analyse d’une structure mécanique sous charge statique par amplification vidéo de petit déplacement, consistant à : a. acquérir (100) une pluralité d’images (A, B, C) de la structure mécanique, avec des première et seconde images (A, C) montrant la structure mécanique sous chargement minimal et maximal ; b. ordonnancer (102), selon un ordre chronologique, les images, lesdites première (A) et seconde (C) images constituant le début et la fin de cet ordre chronologique, pour fournir une séquence (ABC) d’images chronologique ; c. générer (104), à partir de la séquence (ABC), une vidéo (V1) d’animation de la structure mécanique sous forme d’une oscillation sinusoïdale ; d. amplifier (106) ladite vidéo d’animation (V1) en utilisant un algorithme d’amplification visuelle de petites vibrations pour obtenir une vidéo amplifiée (V2) ; e. analyser (108), dans la vidéo amplifiée (V2), un petit déplacement de la structure mécanique. Figure de l’abrégé : Figure 2
FR2012918A 2020-12-09 2020-12-09 Procédé vidéo d’analyse d’une structure mécanique sous charge par amplification de petit déplacement Active FR3117248B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2012918A FR3117248B1 (fr) 2020-12-09 2020-12-09 Procédé vidéo d’analyse d’une structure mécanique sous charge par amplification de petit déplacement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2012918A FR3117248B1 (fr) 2020-12-09 2020-12-09 Procédé vidéo d’analyse d’une structure mécanique sous charge par amplification de petit déplacement
FR2012918 2020-12-09

Publications (2)

Publication Number Publication Date
FR3117248A1 FR3117248A1 (fr) 2022-06-10
FR3117248B1 true FR3117248B1 (fr) 2022-12-02

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FR2012918A Active FR3117248B1 (fr) 2020-12-09 2020-12-09 Procédé vidéo d’analyse d’une structure mécanique sous charge par amplification de petit déplacement

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FR (1) FR3117248B1 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645383B1 (fr) 1989-03-31 1997-06-27 Thomson Consumer Electronics Procede et dispositif d'interpolation temporelle d'images, a compensation de mouvement corrigee

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FR3117248A1 (fr) 2022-06-10

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