Morpho

Idemia Identity & Security France

Idemia Public Security France

Julien Doublet

Jean Beaudet

Alain Thiebot

Sylvaine Picard

François Rieul

Joël Yann Fourre

Stephane Revelin

William Ketchantang

Jean-François Boulanger

Benoît Thouy

Michaël Verilhac

Soufiane Jouini

Jean-Francois Boulanger

Benoit Thouy

Stéphane Revelin

M Alain Thiebot

The invention relates to a method for authenticating a face presented to a device comprising the steps in which the imager acquires an initial image of a face, the processing unit determines a pose of the face from the initial image, and determines a reference pose and a target position placed randomly or pseudo-randomly in a target space, the screen displays a displayed image () comprising at least one visual orientation mark () initially at a reference position, and a visual target () at the target position, updated by moving the visual orientation mark () according to the successive poses of the face, and the processing unit authenticates the face presented if there is a match between the position of the visual orientation mark () and the target position where the visual target is located ().

Face authentication method

Validation of using a finger as support of a fingerprint may include:

Method of validation of the use of a real finger as support of a fingerprint

The present invention relates to a method and device for obtaining an image of a crumpled document from an image of this document when it is crumpled. The method comprises a step of determining a three-dimensional geometric model of the surface of the crumpled document by triangulation of three-dimensional points defined from the pattern of a target extracted from the image of this document when it is crumpled; the method is characterized in that it comprises a step of determining a projection of the three-dimensional geometric model onto a so-called acquisition plane, by means of error minimization of this projection under constraints of preserving defined geometric characteristics in the vicinity of the three-dimensional points, and in that it comprises a step of superimposing the textures associated with the three-dimensional model onto the projection of this model thus determined. The present invention likewise relates to target patterns that make it possible to improve the quality of the image resulting from the method to be improved and/or to reduce the cost for computing said image.

Method and device for obtaining an image of a crumpled document from an image of said document when same is crumpled

The invention relates to a document-processing system, which includes a device suitable for supplying consecutive recorded images as well as a background surface, comprising a step of storing a standard background surface image. The next step consists of detecting the presence of a document moving across a series of recorded images relative to the standard background surface image. The following step consists of monitoring the movement of the document within the series of images. The end of the movement of the document is then detected and the standard background surface image is updated. The movement of the document is monitored by determining document-extraction masks respectively for the recorded images, the extraction mask of a recorded image being obtained according to an entropy card of the recorded image relative to said standard background surface image.

Extraction of a document in a series of recorded images

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Paris, France

Julien Doublet