Patents Assigned to IMRA Europe S.A.
  • Patent number: 10776664
    Abstract: Some embodiments are directed to a method to reinforce deep neural network learning capacity to classify rare cases, which includes the steps of training a first deep neural network used to classify generic cases of original data into specified labels; localizing discriminative class-specific features within the original data processed through the first deep neural network and mapping the discriminative class-specific features as spatial-probabilistic labels; training a second-deep neural network used to classify rare cases of the original data into the spatial-probabilistic labels; and training a combined deep neural network used to classify both generic and rare cases of the original data into primary combined specified and spatial-probabilistic labels.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: September 15, 2020
    Assignee: IMRA EUROPE S.A.S.
    Inventors: Dzmitry Tsishkou, Rémy Bendahan
  • Patent number: 10663594
    Abstract: Some embodiments are directed to a processing method of a three-dimensional point cloud, including: obtaining a 3D point cloud from a predetermined view point of a depth sensor; extracting 3D coordinates and intensity data from each point of the 3D point cloud with respect to the view point; transforming 3D coordinates and intensity data into at least three two-dimensional spaces, namely an intensity 2D space function of the intensity data of each point, a height 2D space function of an elevation data of each point, and a distance 2D space function of a distance data between each point of 3D point cloud and the view point, defining a single multi-channel 2D space.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: May 26, 2020
    Assignee: IMRA EUROPE S.A.S.
    Inventors: Dzmitry Tsishkou, Frédéric Abad, Rémy Bendahan
  • Patent number: 8798376
    Abstract: A method for detecting contour points of an object in an image obtained by a video camera comprising the steps of: (i) selecting a scan line of the image; (ii) identifying minimum intensity differences called transitions between pixels of the selected scan line; (iii) identifying plateaus at both ends of the identified transitions; (iv) determining contour points of the object between the identified plateaus; (v) generating a descriptor of the contour in one dimension; and (vi) beginning again with step (i) by selecting another scan line of the image according to a predefined order.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: August 5, 2014
    Assignee: IMRA Europe S.A.S.
    Inventors: Remy Bendahan, Sylvain Bougnoux, Frederic Abad, Dzimitry Tsishkou, Christophe Vestri, Sebastien Wybo
  • Patent number: 7957496
    Abstract: A communications receiver may include an adaptive filter unit for removing coherent interference components from a received signal. In the absence of a signal of interest, the filter may adapt dynamically to remove current interference components. When a signal of interest is detected, the filter may be controlled to stop (or at least reduce) its adaptation, to prevent removal of the signal of interest. The received signal may be down-converted to a complex baseband by conditioning circuitry. A detector may detect the signal of interest, and control the filter. Autocorrelation may be used to estimate a characteristic of the signal of interest in the complex baseband. The detector may include hysteresis to react quickly to the start of signal of interest, and more slowly to an end of the signal of interest. The signal of interest may be a frequency shift keyed (FSK) signal. A demodulator may demodulate FSK components based on the autocorrelation result.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: June 7, 2011
    Assignee: IMRA Europe S.A.
    Inventors: Philippe Loiseau, Michel Gaeta, Luc Haumonte
  • Patent number: 7623604
    Abstract: A communications receiver may include an adaptive filter unit for removing coherent interference components from a received signal. In the absence of a signal of interest, the filter may adapt dynamically to remove current interference components. When a signal of interest is detected, the filter may be controlled to stop (or at least reduce) its adaptation, to prevent removal of the signal of interest. The received signal may be down-converted to a complex baseband by conditioning circuitry. A detector may detect the signal of interest, and control the filter. Autocorrelation may be used to estimate a characteristic of the signal of interest in the complex baseband. The detector may include hysteresis to react quickly to the start of signal of interest, and more slowly to an end of the signal of interest. The signal of interest may be a frequency shift keyed (FSK) signal. A demodulator may demodulate FSK components based on the autocorrelation result.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: November 24, 2009
    Assignee: IMRA Europe S.A.
    Inventors: Philippe Loiseau, Michel Gaeta, Luc Haumonte
  • Publication number: 20040009061
    Abstract: The present invention provides a compressor comprising a housing 1 defining an air inlet passage 2 and a volute duct. A rotary impeller 6 is located within the housing 1 between the inlet passage 2 and the volute duct. A sleeve 3 is mounted axially in the inlet passage 2 and divides the inlet passage into a radially outer portion 4 and a radially inner portion 5. A plurality of inlet guide vanes 8 are positioned in the radially outer portion 4 and impart a rotary component of movement pre-swirl) to air passing through the inlet passage 2. A fluid cut-off valve 9 is positioned in the radially inner portion 5 and for selectively preventing fluid flow therethrough and diverting all of the air through the radially outer portion 4 of the inlet passage 2 at low mass flow rates.
    Type: Application
    Filed: July 9, 2003
    Publication date: January 15, 2004
    Applicant: IMRA EUROPE S.A. UK RESEARCH CENTRE.
    Inventor: Gary McDonald
  • Patent number: 5808177
    Abstract: The invention is related to a method for controlling a device for the ultrasound detection of objects in air, said device comprising a plurality of transducers, used as transmitters and adapted to operate in a phased grid, and at least one transducer, used as a receiver, which are mounted on a support, wherein, prior to at least one detection operation, a calibration step is carried out in order to ascertain a structural phase shift of the transmitter with respect to the reference transmitter, which is then memorized so as to later be able to correct the theoretical phase shifts of the transmitters from the structural phase shift value when shots are ordered later.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: September 15, 1998
    Assignee: Imra Europe S.A.
    Inventor: Pierre Bonnefoy