Abstract: A method implemented by computer means for training a decision system for segmenting medical images from a training set of annotated medical images, the segments belonging to at least one class, each annotation of the medical images including quantitative information about a number of pixels of the image that belongs to each of the classes, the method using weakly-supervised algorithm based on a percentage of the pixels of the image belonging to a concerned class.

Abstract: A method for generating and checking a spatio-temporal field distribution having predefined characteristics such as one or more directions of propagation, a high level of field intensity and a polarization in a reverberant chamber. To do this, two separate networks of transducers are provided so as to estimate a transfer function between these two networks and to determine excitation signals using the principle of temporal return. The excitation signals are used to generate the spatio-temporal field according to the predefined characteristics.

Abstract: A method is provided for generation of statistically uniform field distribution inside a test volume of a reverberation chamber. The method includes: generating complex independent and identically distributed random signals x, filtering signals x through a passage matrix P according to a linear transformation in order to determine correlated excitation signals “a” by “a”=Px, P being a passage matrix determined from H a complex transfer function H between the test volume and the antennas; and P is constructed such that E=HPx where E is independent and identically distributed, and generating the field E by applying simultaneously correlated excitation signals “a” to several antennas of the reverberation chamber.

Abstract: A method and device includes measuring a multiple-phase fluid flowing through a pipe. The inventive method includes the following steps in which: a fluid is illuminated using a first coaxial probe placed in contact with the liquid phase of the fluid, and a first electromagnetic wave is emitted at a high frequency. The admittance at the interface between the first probe and the fluid is measured, and the fractions of at least two constituents of the liquid phase are calculated in order to obtain the effective permittivity (?1) of the phase. The method also includes the following steps in which: the fluid is illuminated using a second coaxial probe and a second electromagnetic wave is emitted at a low frequency. The admittance at the interface between the second probe and the liquid is measured, and the thickness (e) of the liquid is measured. The aforementioned calculation is performed on the basis of the calculated effective permittivity (?1) and the admittance measured by the second probe.

Abstract: A method for generating and checking a spatio-temporal field distribution having predefined characteristics such as one or more directions of propagation, a high level of field intensity and a polarization in a reverberant chamber. To do this, two separate networks of transducers are provided so as to estimate a transfer function between these two networks and to determine excitation signals using the principle of temporal return. The excitation signals are used to generate the spatio-temporal field according to the predefined characteristics.

Abstract: A method is provided for determining the attitude, position, and velocity of a mobile device from knowledge of the direction of the earth's magnetic field in an absolute reference frame. Signals are supplied to a processing means for the signals by gyroscopic measuring means in three axes, accelerometric measuring means in three axes, and magnetic measuring means in three axes, where the measuring means are located on-board the device and according to three three-dimensional reference frames connected to the device reference frame.

Abstract: The invention relates to the field of inertial navigation systems and in particular to a method for determining the attitude, position, and velocity of a mobile device from knowledge of the direction of the earth's magnetic field in an absolute reference frame and signals supplied to processing means (4) of these signals by gyroscopic measuring means (1) in three axes, accelerometric measuring means (2) in three axes, and magnetic measuring means (3) in three axes, said measuring means being located on-board the device and according to three three-dimensional reference frames connected to the device reference frame OdXdYdZd, and characterized by comprising: a first step in which the attitude of the device is calculated at time K?1 from: signals coming from the gyroscopic measuring means (1) at time k signals coming from the accelerometric measuring means (2) at time k+1 the position and velocity of the device in the absolute reference frame at time k signals supplied by the magnetic measuring means (3) re

Abstract: A preprocessing circuit receives signals representative of a current circulating in a primary winding and of a current circulating in a secondary winding of a transformer. The signals representative of currents are used to calculate the values of a through current and a differential current. The preprocessing circuit performs a spectral analysis and provides a neural network with signals representative of the fundamental component of the through current, of the fundamental component of the differential current, of the second harmonic and of the fifth harmonic of the differential current. The neural network identifies fault conditions and normal operation states, and supplies a triggering and/or alarm signal to an output when a fault condition is detected.