Patents by Inventor Christian Laugier

Christian Laugier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11364899
    Abstract: A driving assistance system includes a sensor set, a data storage device and an output device. The sensor set observes apparent states of each road user of the plurality of road users at successive time steps, the data processor assigns a behavioral model stored in the data storage device, the data processor calculating a new maneuver distribution that is a probability distribution over a finite plurality of alternative maneuvers and a new state distribution that is a probability distribution of possible states for each alternative maneuver of the finite plurality of alternative maneuvers. The data processor determines a risk of collision of the road vehicle with another road user, based on the new maneuver and state distributions of the target road user, and outputs one or more of a driver warning signal and executes an avoidance action if the risk of collision exceeds a predetermined threshold.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: June 21, 2022
    Assignees: TOYOTA MOTOR EUROPE, INSTITUT NATIONAL de RECHERCHE en INFORMATIQUE et en AUTOMATIQUE (INRIA), INSTITUT NATIONAL DES SCIENCES APPLQUEES DE LYON
    Inventors: Nicolas Vignard, David Sierra Gonzalez, Christian Laugier, Jilles Steeve Dibangoye, Victor Romero-Cano
  • Publication number: 20210334556
    Abstract: An electronic device for determining a semantic grid of an environment of a vehicle is provided. The electronic device is configured to: receive first image data of an optical sensor, the first image data comprising a 2D image of the environment, perform a semantic segmentation of the 2D image and project the resulting semantic image into at least one predetermined semantic plane, receive an occupancy grid representing an allocentric bird eye's view of the environment. The control device further includes a neural network configured to determine a semantic grid by fusing the occupancy grid with the at least one predetermined semantic plane.
    Type: Application
    Filed: September 12, 2018
    Publication date: October 28, 2021
    Applicant: TOYOTA MOTOR EUROPE
    Inventors: Nicolas VIGNARD, Ozgur ERKENT, Christian LAUGIER, Christian WOF
  • Publication number: 20210271979
    Abstract: This method adapts an initial model trained with labeled images of a source domain into an adapted model. It comprises: copying the initial model into the adapted model; dividing the adapted model into an encoder part and a second part, wherein the second part is configured to process features output from said encoder part; adapting said adapted model to a target domain using images (xs) of the source and target domains while fixing the parameters of said second part and minimizing a function of following two distances: a distance between features of the source domain output of the encoders of the initial model and of the adapted model; and a distance measuring a distribution distance between probabilities of features obtained for images of the source domain and of the target domain.
    Type: Application
    Filed: February 25, 2021
    Publication date: September 2, 2021
    Inventors: Gabriel OTHMEZOURI, Ozgur ERKENT, Christian LAUGIER
  • Publication number: 20200189574
    Abstract: The present invention concerns a driving assistance method and system (100) for a road vehicle (1). The driving assistance system (100) comprises a sensor set (200), a data storage device (101, 102) and an output device (104, 105). The sensor set (200) observes, in a traffic scene including the road vehicle among a plurality of road users, apparent states of each road user of the plurality of road users at successive time steps. The data processor (103) assigns, to a target road user of the plurality of road users, a behavioral model stored in the data storage device (101, 102).
    Type: Application
    Filed: June 2, 2017
    Publication date: June 18, 2020
    Applicants: TOYOTA MOTOR EUROPE, INSTITUT NATIONAL de RECHERCHE en INFORMATIQUE et en AUTOMATIQUE (INRIA), INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON
    Inventors: Nicolas VIGNARD, David SIERRA GONZALEZ, Christian LAUGIER, Jilles Steeve DIBANGOYE, Victor ROMERO-CANO
  • Publication number: 20200104606
    Abstract: A computerized device for driving assistance comprises a memory (4) designed to receive data point cloud data (8) in which a point cloud associates, for a given instant, points each having coordinates in a plane associated with the point cloud and a value denoting a height.
    Type: Application
    Filed: June 6, 2018
    Publication date: April 2, 2020
    Inventors: Amaury NEGRE, Christian LAUGIER, Lukas RUMMELHARD
  • Publication number: 20190353791
    Abstract: An electronic device for a vehicle for augmenting image data of a passive optical sensor. The electronic device is configured to: receive first image data of a passive optical sensor, the first image data comprising a plurality of pixels in an image plane, receive second data of an active sensor, the passive optical sensor and the active sensor sensing the same scene outside the vehicle, the active sensor including a plurality of scan areas distributed over the scene, the second data including measurement values at returned scan areas, identify at least one cluster based on the distribution of returned scan areas, project the cluster onto the image plane, identify pixels which match with the projected cluster in the image plane, and associate the identified pixels with second data of the matching cluster. Further relates to a system and a method.
    Type: Application
    Filed: December 20, 2016
    Publication date: November 21, 2019
    Applicant: TOYOTA MOTOR EUROPE
    Inventors: Nicolas VIGNARD, Victor Romero CANO, Christian LAUGIER
  • Publication number: 20190329763
    Abstract: The present invention concerns a driving assistance method and system (100) for a road vehicle (1). The driving assistance system (100) comprises a sensor set (101), a data storage device (102) and an an output device (104,105). The sensor set (101) detects, within a traffic scene including the road vehicle (1), a set of road users and, for each road user of said set of road users, a current state including a current speed and a current position. The data storage device (102) comprises a finite plurality of behavioral models.
    Type: Application
    Filed: October 31, 2016
    Publication date: October 31, 2019
    Applicant: TOYOTA MOTOR EUROPE
    Inventors: David SIERRA GONZALEZ, Christian LAUGIER, Jilles Steeve DIBANGOYE, Alejandro Dizan VASQUEZ GOVEA, Nicolas VIGNARD
  • Patent number: 10290116
    Abstract: A method for analyzing a dynamic scene partitioned into cells which involves determining a probability of occupancy of a cell and a probability or probabilities of movement of the cell by solving the equation P(OV|ZC)=?A0?1V-1P(CA00?1VV?1Z)/?A00?1VV?1P(CA00?VV?1Z) comprising the determination of the speeds and positions of dummy particles in the grid depending on those determined at the (k?1)th iteration and the probability P(V|V?1); the determination of the particles located in each cell depending on the determined positions, and the solving of the equation, for a cell, is split into the solving of a static part corresponding to P(0=empty, V=0|ZC) and P(0=occupied, V=0|ZC) and the solving of a dynamic part corresponding to P(0=occ, V=vki,|ZC), i=32 1 to nk, in which nk is the number of particles determined in cell C for the kth iteration.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: May 14, 2019
    Assignees: Inria Institut National De Recherche En Informatique Et En Automatique, Centre National De La Recherche Scientifique, Commissariat A L'Energie Atomique Et Aux Energies Alternatives
    Inventors: Christian Laugier, Amaury Negre, Mathias Perrollaz, Lukas Rummelhard
  • Patent number: 9881498
    Abstract: The invention concerns a method for assessment of abnormal driving behavior to improve driving safety of a vehicle travelling on a road, using position information and motion information about said vehicle and/or at least one neighboring vehicle travelling in the proximity of said vehicle on said road. The method comprises a step of obtaining and memorizing (40, 42) a plurality of position information items and motion information items, each information item corresponding to a measuring time instant of an observation time interval and a step of obtaining (44) at least one estimate of the reference value for said vehicle and/or its at least one neighboring vehicles travelling on said road during the observation time interval.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: January 30, 2018
    Assignee: INRIA INSTITUT NATIONAL DE RECHERCHE EN INFORMATIO
    Inventors: Igor Evguenyevitch Paromtchik, Christian Laugier
  • Patent number: 9779624
    Abstract: The invention concerns a method of driving assistance for assisting a human driver in safely driving a vehicle called host vehicle, implemented by a processor on board of said host vehicle. The host vehicle comprises means for obtaining first information relative to the host vehicle and means for obtaining second information relative to at least one other vehicle in a neighborhood of the host vehicle, said first and second information being obtained at regular time instants, comprising triggering an intervention of a collision avoidance system. The method comprises a step (51) of intervention decision adapted to decide whether to trigger the intervention of the collision avoidance system at a current time instant (Tc) or to postpone said intervention decision at a later time instant (Tl) depending upon additional first and second information to be acquired between the current time instant (Tc) and the later time instant (Tl), said additional first and second information having an associated probability.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: October 3, 2017
    Assignees: Inria Institut National De Recherche En Informatique Et En Automatique, The Regents of the University of California
    Inventors: Stephanie Lefevre, Christian Laugier, Ruzena Bajcsy
  • Publication number: 20170256071
    Abstract: A method for analysing a dynamic scene partitioned into cells which involves determining a probability of occupancy of a cell and a probability or probabilities of movement of the cell by solving the equation P(OV|ZC)=?AO?1 V-1P(CAOO?1VV?1Z)/?AOO?1VV?1P(CAOO?VV?1Z) comprising the determination of the speeds and positions of dummy particles in the grid depending on those determined at the (k?1)th iteration and the probability P(VFV-1); the determination of the particles located in each cell depending on the determined positions, and the solving of the equation, for a cell, is split into the solving of a static part corresponding to P(O=empty, V=O|ZC) and P(O=occupied, V=O|ZC) and the solving of a dynamic part corresponding to P(O=occ, V=vkl,|ZC), i=32 1 to nk, in which nk is the number of particles determined in cell C for the kth iteration.
    Type: Application
    Filed: June 2, 2015
    Publication date: September 7, 2017
    Applicants: INRIA INSTITUT NATIONAL DE RECHERCHE EN INFORMATIQE ET EN AUTOMATIQUE, CENTRE NATIONAL DE LA RECHERCHE SCINTIFIQUE (CNRS), COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: CHRISTIAN LAUGIER, AMAURY NEGRE, MATHIAS PERROLLAZ, LUKAS RUMMELHARD
  • Publication number: 20160275797
    Abstract: The invention concerns a method of driving assistance for assisting a human driver in safely driving a vehicle called host vehicle, implemented by a processor on board of said host vehicle. The host vehicle comprises means for obtaining first information relative to the host vehicle and means for obtaining second information relative to at least one other vehicle in a neighborhood of the host vehicle, said first and second information being obtained at regular time instants, comprising triggering an intervention of a collision avoidance system. The method comprises a step (51) of intervention decision adapted to decide whether to trigger the intervention of the collision avoidance system at a current time instant (Tc) or to postpone said intervention decision at a later time instant (Tl) depending upon additional first and second information to be acquired between the current time instant (Tc) and the later time instant (Tl), said additional first and second information having an associated probability.
    Type: Application
    Filed: October 24, 2014
    Publication date: September 22, 2016
    Inventors: Stephanie Lefevre, Christian Laugier, Ruzena Bajcsy
  • Publication number: 20160185347
    Abstract: The invention relates to a method for assessing the risk of collision between a first vehicle approaching an intersection and at least one second vehicle driving through said intersection, said first vehicle being provided with a measurement means and a computing means. The method according to the invention is mainly characterised in that same includes the following steps: a step of determining the respective positions of said first vehicle and each second vehicle, a step of estimating the intentions of the driver of said first vehicle and of each second vehicle, a step of estimating the need for the first vehicle and for each second vehicle to stop in accordance with the results provided by the two preceding steps and the traffic rules applicable to said intersection, and a step of estimating the risk of collision between the first vehicle and each second vehicle.
    Type: Application
    Filed: September 24, 2013
    Publication date: June 30, 2016
    Inventors: Stephanie Lefevre, Javier Ibanez-Guzman, Christian Laugier
  • Publication number: 20160035220
    Abstract: The invention concerns a method for assessment of abnormal driving behaviour to improve driving safety of a vehicle travelling on a road, using position information and motion information about said vehicle and/or at least one neighbouring vehicle travelling in the proximity of said vehicle on said road. The method comprises a step of obtaining and memorizing (40, 42) a plurality of position information items and motion information items, each information item corresponding to a measuring time instant of an observation time interval and a step of obtaining (44) at least one estimate of the reference value for said vehicle and/or its at least one neighbouring vehicles travelling on said road during the observation time interval.
    Type: Application
    Filed: March 12, 2014
    Publication date: February 4, 2016
    Inventors: Igor Evguenyevitch Paromtchik, Christian Laugier
  • Publication number: 20120143488
    Abstract: The invention relates to a vehicle or traffic control method and to a vehicle or traffic control system. The vehicle or traffic control method comprises the steps: a) estimating actual and/or future behavior of a first traffic participant and of a second traffic participant, respectively, the second traffic participant being different from the first traffic participant, b) estimating a trajectory to be taken by the first traffic participant and/or a trajectory to be taken by the second traffic participant, c) determining risk of collision of the first traffic participant relative to the second traffic participant by calculating information adapted for risk assessment of collision of the first traffic participant relative to the second traffic participant, and d) controlling the behavior of the first traffic participant based on the information provided after step a), step b) and/or step c).
    Type: Application
    Filed: August 31, 2010
    Publication date: June 7, 2012
    Applicant: TOYOTA MOTOR EUROPE NV/SA
    Inventors: Gabriel Othmezouri, Hiromichi Yanagihara, Katsuhiro Sakai, Emmanuel Mazer, Kamel Mekhnacha, Christian Laugier, Christopher Tay Meng Keat
  • Publication number: 20080252433
    Abstract: A vehicle driving aid method includes and defining an occupation grid corresponding to discretization into N cells of a field of kinematic parameters of a detected object; acquiring at each time k an observation zk produced by a sensor and determining a sensor probability modeling the behavior thereof; calculating for each cell X, a predicted occupation probability providing the probability that the cell X is, at time k, in occupied state having knowledge of a density of estimated of occupation of the grid a the preceding time; calculating for each cell X, an estimated probability of occupation providing the sensor probability and predicted occupation probability; the latter at time k determined by supposing that a single cell of the grid constitutes, at time k?1, the antecedent of the cell X concerned; evaluating, for each cell X, a collision probability, based on the estimated probability at time k and emitting a signal to avoid the object.
    Type: Application
    Filed: September 8, 2006
    Publication date: October 16, 2008
    Applicants: INSTITUT NATIONAL DE LA RECHERCHE EN INFORMATIQUE ET EN AUTOMATIQUE, PROBAYERS
    Inventors: Manuel Yguel, Kamel Mekhnacha, Christian Laugier