Geometrix, Inc.

Fish & Richardson P.c.

Roman Waupotitsch

Oleg Mishin

Mikhail Tsoupko-Sitnikov

Francesco Callari

Esfandiar Bandari

Gerard Medioni

Arthur L Zwern

Sandor Fejes

Gérard G Medioni

Jinlong Chen

Vladimir Shamgin

Anrong Peng

David Guigonis

A device for carrying out of biometric identification by comparing face shapes. The shape of a first face is compared with the shape of a second face. A map can be determined between the shapes. The shape, and hence the comparison, is substantially independent of pose and lighting, and also parts of the shape can be removed from the comparison in order to enhance the recognition.

Imaging of biometric information based on three-dimensional shapes

Techniques and systems that provide interactions between a 3D representation of a selected pair of glasses and a fully-textured 3D face model are disclosed. According to one embodiment, an interactive platform is displayed to allow a user to select a pair of glasses and try the selected glasses on a user-provided 3D face model. The interactions provided in the platform include spatial adjustments of the glasses around the face model, various perspective views of the 3D face with the glasses on and other cosmetic alternations to the selected glasses. According to one application, when the user finishes the try-on process, the information about the glasses can be transmitted to a business that can subsequently produce a pair of customized glasses for the user.

Interactive try-on platform for eyeglasses

A 3D modeling system for automatically generating fully-textured 3D models of objects from a sequence of images taken around the objects is disclosed. There are several processes developed to facilitate the operation of the 3D modeling system by an ordinary skilled person. One of the processes is the automatic calibration of a camera using only a portion of a calibration disc to essentially provide a larger effective field of view of the camera. Another process is a space carving process that subdivides volumetric cells recursively to fit to a 3D object using a tree structure that encodes the entire process. Still another process is a 3D mesh model generation process that begins with the tree structure and generates self-constraint and interconnected triangles, in a sense that all triangles intersect with each other either not at all or at common boundary faces, to represent the shape of the 3D object. Yet still another process is a textured patch process that provides a useful mechanism for a user to edit and modify a fully-textured 3D model in a desired manner by the user.

Method and system for generating fully-textured 3D

Techniques for generating a 3D region from a surrounding imagery are disclosed. The surrounding imagery comprising a sequence of side view images taken respectively at a known position around an object. The images are preprocessed to generate corresponding sequence of mask images. To accelerate the subsequent space carving process, each of the mask images is encoded uniquely using what is called herein a Maximal Area Encoding scheme. In the space carving process, volumetric cells or cubes representing the object are recursively subdivided to gradually fit the object by &ldquo;carving&rdquo; away those cubes that are not occupied by any of the object. All cubes are encoded and indexed using an octree structure.

Method and apparatus for generating a 3D region from a surrounding imagery

A mesh generator and process based on a volumetric representation is disclosed. According to one aspect of the present invention, a 3D region of an object is generated by a space carving process and represented by volumetric cells encoded in a tree structure, such as an octree tree. Given the 3D region, the mesh process generates a mesh of elements covering the entire 3D region and intersecting with each other either not at all or at common boundary faces.

Method and apparatus for generating mesh models of 3D objects

A method and apparatus for generating exportable patches are disclosed. The exportable patches representing a mesh model are respectively generated using a test-and-merge procedure. A patch is a collection of the polygons with the property that every polygon in the patch shares at least one edge with some other polygons in the same patch. In addition, all patches have the properties that the union of all the polygons contains all the polygons of the mesh, and that no two patches contain the same polygon. Exporting such patches in image files makes it possible for a user to alter or modify the texture mapping for a particular patch in a desirable way.

Growing community of inventors

San Jose, CA, United States of America

Roman Waupotitsch