Abstract: A method and device to simulate, visualize and compare 3D surfaces Method and device to visualize a composition of two matched surface models (M1) and (M2) in order to privilege the visualization of the silhouette of the second representation (R2) of the second surface model (M2), that is, the surface elements which are the most tangent to the viewing direction defined by the optical center (C) of a virtual camera and the point (P) of the surface of the second surface model (M2) considered, and to visualize it by transparency on top of the first surface model (M1). The disclosure is intended in particular to compare anatomical subjects before and after simulation or surgical or aesthetic procedures.

Abstract: The method and device are intended to prove the posteriority date (P) and anteriority date (A) of a digital image (IN) including building with a first server a previously unknown code (C) and transmitting this code (C) at the posteriority date (P), acquiring the digital image including a joint representation of a subject (S) and the code (C), computing an electronic fingerprint (EIN) of the digital image (IN), receiving with a second server at the anteriority date (A) the electronic fingerprint (EIN), inserting a combination (EIN+A) of the electronic fingerprint (EIN) and the anteriority date (A) in a block chain and possibly retrieving and sending back with a third server the recorded posteriority (P) and anteriority (A) dates from the reception of a new digital image (IN2). The disclosure is intended in particular to prove with images the correct performance of clinical protocol steps in clinical trials.

Abstract: The device and method are intended for reconstructing in 3-Dimensions comprehensive representations of the head and torso of subject (S) with a portable stereophotogrammetry device which can operate at, at least, two predefined positions (A3, A4). The device is composed of a camera body (1), a double optics (2) and a measuring distance system (34) enabling the repositioning of subject (S) at position (A3) or (A4). The user can operate a switch (5) to select one of these at least two pre-defined positions. The method is further to process the stereo-pairs of the subject to reconstruct 3-Dimensional surfaces (400), match them (500) and then stitch them (600) in a comprehensive representation of the subject. By selecting a distance corresponding to a field of view of respectively approximately A4 dimension the device and method is enabling reconstructing the face and of approximately A3 dimension is enabling reconstructing the torso of subject (S).

Abstract: The device and method are intended for reconstructing in 3-Dimensions comprehensive representations of the head and torso of subject (S) with a portable stereophotogrammetry device which can operate at, at least, two predefined positions (A3, A4). The device is composed of a camera body (1), a double optics (2) and a measuring distance system (34) enabling the repositioning of subject (S) at position (A3) or (A4). The user can operate a switch (5) to select one of these at least two pre-defined positions. The method is further to process the stereo-pairs of the subject to reconstruct 3-Dimensional surfaces (400), match them (500) and then stitch them (600) in a comprehensive representation of the subject. By selecting a distance corresponding to a field of view of respectively approximately A4 dimension the device and method is enabling reconstructing the face and of approximately A3 dimension is enabling reconstructing the torso of subject (S).

Abstract: Method and device to visualize a composition of two matched surface models (M1) and (M2) in order to privilege the visualization of the silhouette of the second representation (R2) of the second surface model (M2), that is, the surface elements which are the most tangent to the viewing direction defined by the optical center (C) of a virtual camera and the point (P) of the surface of the second surface model (M2) considered, and to visualize it by transparency on top of the first surface model (M1). The disclosure is intended in particular to compare anatomical subjects before and after simulation or surgical or aesthetic procedures.

Abstract: The device and method are intended for reconstructing in 3-Dimensions a complete 360° loop of a subject (30). The device and method is comprising using a passive stereovision 3D camera (10) and either a turn table (20) or alternatively a rotating frame (21) carrying the 3D camera in order to acquire a set of stereo pairs covering a complete 360° loop around the subject (30) and enabling reconstructing (60) the 3D surfaces and associated texture images associated to said stereo pairs and to stitch (80) these 3D surfaces into a comprehensive 3D surface with associated texture image in order to represent over 360° the imaged subject (30). The invention is particularly intended for the 3D reconstruction of 360° loops of the body of people for measurement and surgical simulation in aesthetics.

Abstract: The device and method are intended for reconstructing in 3-Dimensions comprehensive representations of the head and torso of subject (S) with a portable stereophotogrammetry device which can operate at, at least, two predefined positions (A3, A4). The device is composed of a camera body (1), a double optics (2) and a measuring distance system (34) enabling the repositioning of subject (S) at position (A3) or (A4). The user can operate a switch (5) to select one of these at least two pre-defined positions. The method is further to process the stereo-pairs of the subject to reconstruct 3-Dimensional surfaces (400), match them (500) and then stitch them (600) in a comprehensive representation of the subject. By selecting a distance corresponding to a field of view of respectively approximately A4 dimension the device and method is enabling reconstructing the face and of approximately A3 dimension is enabling reconstructing the torso of subject (S).

Abstract: The device and method are intended for reconstructing in 3-Dimensions comprehensive representations of the head and torso of subject (S) with a portable stereophotogrammetry device which can operate at, at least, two predefined positions (A3, A4). The device is composed of a camera body (1), a double optics (2) and a measuring distance system (34) enabling the repositioning of subject (S) at position (A3) or (A4). The user can operate a switch (5) to select one of these at least two pre-defined positions. The method is further to process the stereo-pairs of the subject to reconstruct 3-Dimensional surfaces (400), match them (500) and then stitch them (600) in a comprehensive representation of the subject. By selecting a distance corresponding to a field of view of respectively approximately A4 dimension the device and method is enabling reconstructing the face and of approximately A3 dimension is enabling reconstructing the torso of subject (S).