Scene modeling has a key role in applications ranging from visual mapping to augmented reality. This paper presents an end-to-end solution for creating accurate three-dimensional (3D) textured models using monocular video sequences. The methods are developed within the framework of sequential structure from motion, in which a 3D model of the environment is maintained and updated as new visual i...

This paper shows that constraint−based modeling, so far perceived primarily as a graphics technique for man−machine interaction, also provides a viable method for the modeling of complex surfaces. The idea of constraint−based modeling of three−dimensional shapes is described and illustrated by examples. Difficulties related to the practical application of this idea are discussed, and methods fo...

Aging is a complex process caused by many factors. The most important factors include exposure to UV radiation, smoking, facial muscle movement, gravity, loss and displacement of fat and bone resorption. As a symptom of aging, face loses elasticity, volume and cheerful look. While changing face proportions, the dominant part of a face is its bottom instead of the mid part. The use of three-dime...

In this dissertation, we develop techniques to fully automate the process of constructing a digital, three-dimensional (3D) model from a set of 3D views of a static scene obtained from unknown viewpoints. Since 3D sensors only capture the scene structure as seen from a single viewpoint, multiple views must be combined to create a complete model. Current modeling methods are limited in that they...

The three-dimensional (3D) temporomandibular joint (TMJ) model derives from a study of the cranium by 3D virtual reality and mandibular function animation. The starting point of the project is high-fidelity digital acquisition of a human dry skull. The cooperation between the maxillofacial surgeon and the cartoonist enables the reconstruction of the fibroconnective components of the TMJ that ar...

Today’s geometric modeling tools are usually controlled by the mouse and keyboard. 3dmodeling operations are often constrained to planes or lines to make modeling easier. New augmented reality devices promise new classes of applications with natural 3d user interfaces. This paper deals with a new method that enables users to model 3d shapes directly with their fingers. It is implemented in Arti...

The limited number of RNA structures determined by X-ray crystallography and NMR spectroscopy compels the use of experimental and theoretical methods that are less precise to obtain information on RNA conformation. RNA flexibility, a consequence of rotational freedom about seven intra- and internucleotide bonds, is unfortunately of such magnitude that these alternate techniques fall short of pr...