Yu, FR
Guoshen Yu, Palaiseau Cedex FR
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20090297048 | FAST PATTERN CLASSIFICATION BASED ON A SPARSE TRANSFORM - Techniques for determining a feature in an image or soundtrack of one or more dimensions include receiving a subject image. A sparse transformed subject image is determined, which represents the subject image with a few significant coefficients compared to a number of values in the subject image. Multiple patch functions are received, which are based on a portion of a sparse transformed image for each of a training set of images and which represent learned features in the training set. A feature is determined to be in the subject image based on the transformed subject image and the plurality of patch functions. In various embodiments, a wavelet transformation or audio spectrogram is performed to produce the sparse transformed images. In some embodiments, the feature in the subject is determined regardless of feature location or size or orientation in the subject image. | 12-03-2009 |
20110002384 | VIDEO ENHANCEMENT USING RECURSIVE BANDLETS - A wavelet transform is applied to successive images of a video sequence to obtain wavelet coefficients for each image, and directions of regularity are estimated in association with the wavelet coefficients. Recursive weights are also determined to be associated with the wavelet coefficients. An average multiscale bandlet coefficient associated with a wavelet coefficient for a current image is computed from this wavelet coefficient, the recursive weight associated therewith and a corresponding average multiscale bandlet coefficient computed for a previous image and associated with a wavelet coefficient offset according to the direction of regularity associated with the wavelet coefficient. The average multiscale bandlet coefficients can then be processed to produce an enhanced bandlet image to which an inverse wavelet transform is applied. The determination of a recursive weight associated with a wavelet coefficient for the current image comprises checking a condition between this wavelet coefficient and the corresponding average multiscale bandlet coefficient computed for the previous image, and updating a value of the recursive weight depending on the condition. | 01-06-2011 |
Guoshen Yu, Palaiseau FR
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20110069889 | METHOD AND DEVICE FOR THE INVARIANT-AFFINE RECOGNITION OF SHAPES - A method for the recognition of objects in at least one digital image includes: a) simulating from the digital image a plurality of digital rotations and at least two digital tilts different from 1 in order to develop a simulated image for each rotation-tilt pair; and b) applying an algorithm generating values that are invariant in translation, rotation and zoom onto the simulated images in order to determine so-called SIF (scale invariant features) local characteristics used for recognising objects. The SIFT method can be used in step b. | 03-24-2011 |
Jeremy Yu, Strasbourg FR
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20140142052 | PHOSPHORYLATED POLYOLS, PYROPHOSPHATES, AND DERIVATIVES THEREOF HAVING BIOLOGICAL ACTIVITY - The present invention provides phosphorylated and pyrophosphate derivatives of polyols, and structural derivatives of these compounds, and provides pharmaceutical compositions comprising the same. The compounds and compositions disclosed herein have various biological activities, including for example, as allosteric effectors of hemoglobin and/or as kinase inhibitors. The present invention further provides methods for therapy in human or mammalian patients, and methods for synthesis of biologically active compounds and their intermediates. | 05-22-2014 |
Jin Yu, Saint-Andre-De-Corcy FR
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20150226673 | DEVICE FOR TAKING SPECTROSCOPIC MEASUREMENTS OF LASER-INDUCED PLASMA - An installation for spectroscopic measurement includes a focusing system ( | 08-13-2015 |
Linwei Yu, Palaiseau FR
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20110193053 | METHOD FOR MAKING SIDE GROWTH SEMICONDUCTOR NANOWIRES AND TRANSISTORS OBTAINED BY SAID METHOD - A method of fabricating semiconductor nanowires ( | 08-11-2011 |
Robert Yu, Montigny Le Bretonneux FR
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20110247783 | AUTOMOBILE WITH ELECTRIC MOTOR COMPRISING A COOLING CIRCUIT FOR THE ELECTRONIC POWER CIRCUIT CONNECTED TO A HEATING RADIATOR OF THE PASSENGER COMPARTMENT - An automobile including an electric motor, a passenger compartment, an electronic power circuit, and a cooling circuit for the electronic power circuit, in which a coolant flows and which includes: a heat exchanger configured to discharge calories carried by the coolant to outside of the vehicle; a heating radiator provided upstream from the exchanger and configured to transfer the calories carried by the coolant to air in the passenger compartment; and an adiabatic tank configured to store at least a fraction of the coolant flowing in the cooling circuit. | 10-13-2011 |
20120174602 | SYSTEM FOR THE OVERALL CONTROL OF HEAT FOR ELECTRICALLY PROPELLED MOTOR VEHICLE - A system for overall control of heat for a passenger compartment and for electrical units in a motor vehicle that is completely or partially propelled by an electric engine powered by a battery, including a heat-control fluid circuit coupled to a heating device and/or to a cooling device enabling the fluid to store calories or frigories when the system is plugged into an electrical network outside of the vehicle. The fluid circuit is capable of releasing calories and/or frigories to the air of the passenger compartment, in an alternating manner, either through a heat exchanger between the circuit and the air of the passenger compartment, or using a climate circuit forming a heat pump and/or an air-conditioning system. | 07-12-2012 |
Robert Yu, Montigny Lbx FR
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20080251303 | Method for Controlling a Vehicle Drive Train Comprising Two Cooling Circuits - A method for controlling a vehicle drive train, which communicates or maintains in communication via at least one valve two cooling circuits operating normally and respectively associated with a heat engine and with at least one electrical member. | 10-16-2008 |
Ziqin Yu, Massy FR
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20130121107 | DEVICE AND METHOD FOR DETERMINING SEISMIC OFFSET IN MARINE ACQUISITION - Computing device and method for generating an image of a subsurface. The method calculates an offset shift of measured offsets between a seismic source and plural receivers of a streamer. The method includes receiving seismic data recorded underwater by the plural receivers; selecting two pairs of traces from the plural traces and for each pair, calculating a quantity Y that depends on measured offsets of receivers for which the traces were selected, and a quantity X that depends on travel-times and the measured offsets of the receivers for which the traces were selected; calculating a linear relation Y=aX+b, where “a” is a constant and “b” is related to the offset shift; estimating the offset shift from “b”; correcting the measured offsets of the receivers based on the offset shift; and calculating the image of the subsurface based on the corrected offsets. | 05-16-2013 |
20130242699 | SEISMIC DATA PROCESSING AND APPARATUS - There is a method of seismic data processing that includes receiving seismic data that includes a set of seismic traces, each trace including a signal recorded by a sensor after having been propagated in a subsurface area; migrating the seismic data according to a first velocity model; picking from the time-migrated seismic data one or more events corresponding to one or more subsurface reflectors so as to obtain a set of facets locally approximating the event; kinematic demigrating the picked set of facets so as to obtain simplified seismic data that includes the set of facets and a set of attributes associated with the set of facets; migrating the set of facets based on a second velocity model; and updating the initial velocity model based on an alignment of migrated points within the set of facets. | 09-19-2013 |