FR3062505B1 - METHOD OF DETECTION OF A MOVING OBJECT FROM A VIDEO STREAM OF IMAGES - Google Patents

METHOD OF DETECTION OF A MOVING OBJECT FROM A VIDEO STREAM OF IMAGES Download PDF

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Publication number
FR3062505B1
FR3062505B1 FR1750676A FR1750676A FR3062505B1 FR 3062505 B1 FR3062505 B1 FR 3062505B1 FR 1750676 A FR1750676 A FR 1750676A FR 1750676 A FR1750676 A FR 1750676A FR 3062505 B1 FR3062505 B1 FR 3062505B1
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France
Prior art keywords
video stream
images
area
detection
moving object
Prior art date
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Active
Application number
FR1750676A
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French (fr)
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FR3062505A1 (en
Inventor
David Guerrero
David Daurenjou
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.)
Continental Automotive GmbH
Continental Automotive France SAS
Original Assignee
Continental Automotive GmbH
Continental Automotive France SAS
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Application filed by Continental Automotive GmbH, Continental Automotive France SAS filed Critical Continental Automotive GmbH
Priority to FR1750676A priority Critical patent/FR3062505B1/en
Publication of FR3062505A1 publication Critical patent/FR3062505A1/en
Application granted granted Critical
Publication of FR3062505B1 publication Critical patent/FR3062505B1/en
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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/76—Circuitry for compensating brightness variation in the scene by influencing the image signals
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Analysis (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

La présente invention a pour objet un procédé de prétraitement d'une image d'un flux vidéo d'images acquises par une caméra vidéo pour la détection d'un objet en mouvement dans une zone éclairée par une source lumineuse à partir dudit flux vidéo d'images représentant ladite zone éclairée. Le prétraitement (E2) comprend la modification (E24) du contraste de chaque pixel compris dans une zone délimitée par un motif d'éclairage prédéterminé, défini dans ladite image et représentant la zone éclairée par ladite source lumineuse, de manière inversement proportionnelle à l'éclairement de ladite zone éclairée par la source de lumière.The present invention relates to a method of pre-processing an image of a video stream of images acquired by a video camera for the detection of a moving object in an area illuminated by a light source from said video stream of 'images representing said illuminated area. The preprocessing (E2) comprises the modification (E24) of the contrast of each pixel included in an area delimited by a predetermined illumination pattern, defined in said image and representing the area illuminated by said light source, in a manner inversely proportional to the illumination of said area illuminated by the light source.

FR1750676A 2017-01-27 2017-01-27 METHOD OF DETECTION OF A MOVING OBJECT FROM A VIDEO STREAM OF IMAGES Active FR3062505B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1750676A FR3062505B1 (en) 2017-01-27 2017-01-27 METHOD OF DETECTION OF A MOVING OBJECT FROM A VIDEO STREAM OF IMAGES

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1750676A FR3062505B1 (en) 2017-01-27 2017-01-27 METHOD OF DETECTION OF A MOVING OBJECT FROM A VIDEO STREAM OF IMAGES
FR1750676 2017-01-27

Publications (2)

Publication Number Publication Date
FR3062505A1 FR3062505A1 (en) 2018-08-03
FR3062505B1 true FR3062505B1 (en) 2020-10-02

Family

ID=58347682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1750676A Active FR3062505B1 (en) 2017-01-27 2017-01-27 METHOD OF DETECTION OF A MOVING OBJECT FROM A VIDEO STREAM OF IMAGES

Country Status (1)

Country Link
FR (1) FR3062505B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7391450B2 (en) * 2002-08-16 2008-06-24 Zoran Corporation Techniques for modifying image field data
US8259179B2 (en) * 2006-05-15 2012-09-04 Csr Technology Inc. Compensating for non-uniform illumination of object fields captured by a camera

Also Published As

Publication number Publication date
FR3062505A1 (en) 2018-08-03

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