MA36097B1 - Mono-camera system for estimating vehicle speed by video processing with multi-camera calibration by stereoscopic effect - Google Patents

Mono-camera system for estimating vehicle speed by video processing with multi-camera calibration by stereoscopic effect

Info

Publication number
MA36097B1
MA36097B1 MA36097A MA36097A MA36097B1 MA 36097 B1 MA36097 B1 MA 36097B1 MA 36097 A MA36097 A MA 36097A MA 36097 A MA36097 A MA 36097A MA 36097 B1 MA36097 B1 MA 36097B1
Authority
MA
Morocco
Prior art keywords
camera
stereoscopic effect
mono
vehicle speed
video processing
Prior art date
Application number
MA36097A
Other languages
French (fr)
Other versions
MA20150045A1 (en
Inventor
François Bourzeix
Safaa Saadaoui
Omar Bourja
Original Assignee
Mascir Morrocan Foundation For Advanced Science Innovation & Res
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
Application filed by Mascir Morrocan Foundation For Advanced Science Innovation & Res filed Critical Mascir Morrocan Foundation For Advanced Science Innovation & Res
Priority to MA36097A priority Critical patent/MA36097B1/en
Priority to PCT/MA2014/000016 priority patent/WO2015005758A1/en
Publication of MA20150045A1 publication Critical patent/MA20150045A1/en
Publication of MA36097B1 publication Critical patent/MA36097B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/12—Systems for determining distance or velocity not using reflection or reradiation using electromagnetic waves other than radio waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
    • G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
    • G01P3/38—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light using photographic means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G06T7/254—Analysis of motion involving subtraction of images
    • 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
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10016—Video; Image sequence
    • G06T2207/10021—Stereoscopic video; Stereoscopic 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
    • G06T2207/30236—Traffic on road, railway or crossing
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
    • G08G1/054—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed photographing overspeeding vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Traffic Control Systems (AREA)
  • Studio Devices (AREA)

Abstract

La présente invention se rapporte aux systèmes d'estimation de vitesse, ou encore cinémomètres, qui sont utilisés en particulier pour réaliser des détections d'infraction au code de la route (excès de vitesse). Elle s'intègre à un procédé permettant de mesurer la vitesse de déplacement d'objets (100) devant une caméra vidéo (105). On prévoit, dans cette invention (fig 1) d'utiliser au moins une caméra supplémentaire (110), qui est placée parallèlement sur un l'axe (ex) (115) à la première caméra et qui est éloignée d'elle d'une distance(120) connue. Ce décalage permet de réaliser des calculs de distances sur des points du plan où se déplacent les véhicules en utilisant l'effet stéréoscopique . Cela permet de calibrer le système en associant des coordonnées métriques aux points de l'image sur la route puis de faire des calculs des vitesses dedéplacement des objets mobile devant la caméra (105) voir (fig.2)The present invention relates to speed estimation systems, or filmmeters, which are used in particular for detecting violations of the highway code (speeding). It integrates with a method for measuring the speed of movement of objects (100) in front of a video camera (105). In this invention (FIG. 1), at least one additional camera (110), which is placed parallel to an axis (ex) (115) at the first camera and which is remote from it, is provided for in FIG. a distance (120) known. This offset makes it possible to calculate distances on points of the plane where the vehicles are moving using the stereoscopic effect. This makes it possible to calibrate the system by associating metric coordinates with the points of the image on the road then to make calculations of the displacements velocities of the moving objects in front of the camera (105) see (fig.2)

MA36097A 2013-07-08 2013-07-08 Mono-camera system for estimating vehicle speed by video processing with multi-camera calibration by stereoscopic effect MA36097B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
MA36097A MA36097B1 (en) 2013-07-08 2013-07-08 Mono-camera system for estimating vehicle speed by video processing with multi-camera calibration by stereoscopic effect
PCT/MA2014/000016 WO2015005758A1 (en) 2013-07-08 2014-07-08 Single-camera system for estimating the speed of vehicles by video processing with multi-camera calibration by stereoscopic effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MA36097A MA36097B1 (en) 2013-07-08 2013-07-08 Mono-camera system for estimating vehicle speed by video processing with multi-camera calibration by stereoscopic effect

Publications (2)

Publication Number Publication Date
MA20150045A1 MA20150045A1 (en) 2015-02-27
MA36097B1 true MA36097B1 (en) 2016-01-29

Family

ID=51429344

Family Applications (1)

Application Number Title Priority Date Filing Date
MA36097A MA36097B1 (en) 2013-07-08 2013-07-08 Mono-camera system for estimating vehicle speed by video processing with multi-camera calibration by stereoscopic effect

Country Status (2)

Country Link
MA (1) MA36097B1 (en)
WO (1) WO2015005758A1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0631683B1 (en) * 1992-03-20 2001-08-01 Commonwealth Scientific And Industrial Research Organisation An object monitoring system
US5910817A (en) * 1995-05-18 1999-06-08 Omron Corporation Object observing method and device
ITTO20060214A1 (en) * 2006-03-22 2007-09-23 Kria S R L VEHICLE DETECTION SYSTEM

Also Published As

Publication number Publication date
WO2015005758A1 (en) 2015-01-15
MA20150045A1 (en) 2015-02-27
WO2015005758A4 (en) 2015-03-19

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