A Survey of Morphing Techniques

Image morphing provides the tool to generate the flexible and powerful visual effect. Morphing depicts the transformation of one image into another image. The process of image morphing starts with the feature specification phase and then proceeds to warp generation phase, followed by the transition control phase. This paper surveys the various techniques available for all three stages of image morphing

Control de la forma de una superficie mediante SMAs: Surface Morphing Using SMAs

En este proyecto se desarrolla el diseño, construcción y control de una superficie deformable por medio de hilos de Shape Memory Alloys (SMAs). Para ello primero se estudiará el estado del arte de los SMA, incluyendo su principio de funcionamiento, y el estado del arte de las superficies deformables. Posteriormente se realizará un análisis de especificaciones y condicionantes para realizar el diseño de la superficie. En este aspecto, se tendrá en cuenta que una de las posibles aplicaciones futuras sería la realización de una superficie anti-escaras. Una vez realizado el diseño por ordenador con Autodesk Inventor de las distintas partes del prototipo, se pasará a la construcción de la maqueta. Al mismo tiempo se realizará el diseño de una placa de circuito impreso mediante OrCAD para los drivers que alimentan los actuadores de SMA. Una vez finalizado el diseño de la placa, se procederá al conexionado de la electrónica de control y potencia con el prototipo para poder así realizar su control y una serie de medidas experimentales con las que se podrá analizar el funcionamiento de la superficie. Además durante el proyecto se utilizarán métodos de prototipado rápido como son la impresión 3D o la programación mediante bloques, que se obtiene con la herramienta Simulink de Matlab. Por último se realizará un análisis completo del proyecto, así como de los resultados, y se estudiarán los posibles proyectos a desarrollar basándose en este.This project develops the design, assembly and control of a surface morphing using Shape Memory Alloy (SMA) wires. For this purpose, initially a study of art will be performed about SMA actuators, including its working principle, and about surface morphing. Subsequently, specifications and constraints that would affect the surface design will be analyzed. In this regard, it will be considered that one of the possible applications of this project would be to develop an anti-bedsores surface. Once the computer design of the different components of the prototype is realized using Autodesk Inventor, the model will be assembled. At the same time, it will be design a printed circuit board using OrCAD for the drivers board that power the SMA actuators. Once finalized designing the board, the control and power electronics will be connected to proceed with the control adjustments and a series of tests will be run to evaluate the surface behavior. In addition, during this project fast prototyping methods will be use as 3D printing or block programming through Simulink tool from Matlab. Last, it will be analyzed the complete project, as well as the results obtained with the experimental tests. Also future projects that can be developed based on this project will be studied.Ingeniería Electrónica Industrial y Automátic

Morphing arquitectónico: transformaciones entre las casas usonianas de Frank Lloyd Wright

Esta tesis investiga sobre el proceso de transformación de la forma arquitectónica, analizando una técnica específica denominada morphing. La técnica del morphing se utiliza en los gráficos por ordenador para la transformación de la forma entre dos o más objetos dados. Desde un punto de vista técnico, se revisan y actualizan las metodologías y aplicaciones existentes, sus características específicas y sus incidencias sobre la arquitectura. Desde un punto de vista práctico, se utilizan una serie de modelos de las casas Usonianas de Frank Lloyd Wright, con el fin de experimentar la técnica y ver qué utilidades se pueden obtener a partir de su lógica de diseño. Como resultado de este análisis se obtiene una metodología genérica para el procedimiento de un morphing arquitectónico.This thesis investigates the transformation of architectural form, analyzing a specific technique called morphing. Morphing is a technique used in computer graphics to transform a form between two or more given objects. From a technical point of view, the existing techniques are reviewed and updated, as well as their specific characteristics and impact on architecture. From a practical point of view, some models of Usonian houses of Frank Lloyd Wright are used to experience the technique and see which utilities are available from his design logic. As a result of this analysis a generic methodology for the process of architectural morphing is obtained.Postprint (published version

Three-dimensional morphanalysis of the face.

The aim of the work reported in this thesis was to determine the extent to which orthogonal two-dimensional morphanalytic (universally relatable) craniofacial imaging methods can be extended into the realm of computer-based three-dimensional imaging. New methods are presented for capturing universally relatable laser-video surface data, for inter-relating facial surface scans and for constructing probabilistic facial averages. Universally relatable surface scans are captured using the fixed relations principle com- bined with a new laser-video scanner calibration method. Inter- subject comparison of facial surface scans is achieved using inter- active feature labelling and warping methods. These methods have been extended to groups of subjects to allow the construction of three-dimensional probabilistic facial averages. The potential of universally relatable facial surface data for applications such as growth studies and patient assessment is demonstrated. In addition, new methods for scattered data interpolation, for controlling overlap in image warping and a fast, high-resolution method for simulating craniofacial surgery are described. The results demonstrate that it is not only possible to extend universally relatable imaging into three dimensions, but that the extension also enhances the established methods, providing a wide range of new applications

Image morphing using deformable surfaces

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Image Morphing Using Deformable Surfaces

This paper presents a new image morphing technique using deformable surfaces. Drawbacks of previous techniques are overcome by a physically-based approach which provides an intuitive model for a warp. A warp is derived by two deformable surfaces which specify horizontal and vertical displacements of points on an image. This paper also considers the control of transition behavior in a metamorphosis sequence. The presented technique separates the transition control from interpolating features making it much easier to use than the previous techniques. The multigrid relaxation method is used to compute a deformable surface for a warp or transition rates. This method makes the presented image morphing technique fast enough for an interactive environment. 1 Introduction Image morphing deals with the metamorphosis of an image to another image. The metamorphosis generates a sequence of inbetween images in which an image gradually changes into another image over time. Image morphing techniques..