Modeling of three-dimensional (3D) objects from image sequences is a challenging problem and has been a research topic for many years. Important theoretical and algorithmic results were achieved that allow to extract even complex 3D models of scenes from sequences of images. One recent effort has been to reduce the amount of calibration and to avoid restrictions on the camera motion. In this co...

A universal goal in studying the structures of macromolecules and macromolecular complexes by means of electron cryo-microscopy (cryo-TEM) and three-dimensional (3D) image reconstruction is the derivation of a reliable atomic or pseudoatomic model. Such a model provides the foundation for exploring in detail the mechanisms by which biomolecules function. Though a variety of highly ordered, symm...

Computerized tracking systems based on rectangular CCD cameras currently exist and a variety of commercial systems are available. One example application is the location of a surgical instrument on a CT or MRI image during brain surgery. The present study is based on developing a system of linear CCD sensors for tracking passive markers for the needs of neurosurgery. First the spatial resolutio...

A 31 year old man was referred for the evaluation of chest pain. Cardiac CT reconstruction revealed multiple calcified giant coronary aneurysms. Most likely this patient suffered from subclinical Kawasaki's disease in his childhood.

The thermal structure of the mid-Piacenzian ocean is obtained by combining the Pliocene Research, Interpretation and Synoptic Mapping Project (PRISM3) multiproxy sea-surface temperature (SST) reconstruction with bottom water temperature estimates from 27 locations produced using Mg/Ca paleothermometry based upon the ostracod genus Krithe. Deep water temperature estimates are skewed toward the A...

In this dissertation, I present a problem of three-dimensional volume reconstruction from fluorescent confocal laser scanning microscopy (CLSM) imagery. I overview a three-dimensional volume reconstruction framework which consists of (a) volume reconstruction procedures using multiple automation levels, feature types, and feature dimensionalities, (b) a data-driven registration decision support...

Abstract. This paper presents a basic skill of imitation learning from observation towards developmental cognitive robotics which aims at providing a new way to understand the cognitive process of human beings by realizing artificial systems based on the internal observer’s viewpoint. Unlike the conventional ones, the proposed method does not assume the global coordinate system in order to tran...

This study gives a three-dimensional (3D) structural analysis of rat nephrons and their connections to collecting ducts. Approximately 4,500 2.5-μm-thick serial sections from the renal surface to the papillary tip were obtained from each of 3 kidneys of Wistar rats. Digital images were recorded and aligned into three image stacks and traced from image to image. Short-loop nephrons (SLNs), long-...

This paper describes a new approach, developed under the auspices of the Electro Magnetic Remote Sensing Defence Technology Centre, for reconstruction of three dimensional scene content using passive video. This gradient based scheme uses the parallax in an image sequence to estimate the distance from sensor to scene. Intensity measurements from a passive camera are combined with a rigid body m...

Octopus arms, as well as other muscular hydrostats, are characterized by a very large number of degrees of freedom and a rich motion repertoire. Over the years, several attempts have been made to elucidate the interplay between the biomechanics of these organs and their control systems. Recent developments in electrophysiological recordings from both the arms and brains of behaving octopuses ma...