We examine whether the accuracy of 3-D space point reconstruction from image pairs can be improved by using rotational imaging. The necessary mechanism and mathematical foundations of such a system are described together with the control algorithm needed for achieving optimal reconstruction results.

PURPOSE In 1992, Georges Charpak invented a new type of X-ray detector, which in turn led to the development of the EOS(®) 2D/3D imaging system. This system takes simultaneous anteroposterior and lateral 2D images of the whole body and can be utilized to perform 3D reconstruction based on statistical models. The purpose of this review is to present the state of the art for this EOS(®) imaging t...

This article reviews the various methods of three-dimensional (3D) imaging in orthodontics including the origin and history. Various technologies of 3D imaging applicable to the field of orthodontics such as Structured light ,Stereophotogrammetry, 3D Facial Morphometry, Dynamic stereometry, Laser scanning,Magnetic resonance imaging, Computed tomograghy, Cone beam computerized tomography.Present...

OBJECTIVE To display images of breast cancer from a dedicated breast CT using Depth 3-Dimensional (D3D) augmented reality. METHODS A case of breast cancer imaged using contrast-enhanced breast CT (Computed Tomography) was viewed with the augmented reality imaging, which uses a head display unit (HDU) and joystick control interface. RESULTS The augmented reality system demonstrated 3D viewin...

We present a highly miniaturized camera, mimicking the natural vision of predators, by 3D-printing different multilens objectives directly onto a complementary metal-oxide semiconductor (CMOS) image sensor. Our system combines four printed doublet lenses with different focal lengths (equivalent to f = 31 to 123 mm for a 35-mm film) in a 2 × 2 arrangement to achieve a full field of view of 70° w...

Ultrasound is increasingly in demand as a medical imaging tool and can be particularly beneficial in the field of intracardiac echocardiography (ICE). However, many challenges remain in the development of a 3D ultrasound imaging system. We have designed and fabricated a quad-ring capacitive micromachined ultrasound transducer (CMUT) for real-time, volumetric medical imaging. Each CMUT array is ...

BACKGROUND Improved delineation of vascular structures is a common indication for cardiovascular magnetic resonance (CMR) in children and requires high spatial resolution. Currently, pre-contrast 3D, respiratory navigated, T2-prepared, fat saturated imaging with a bSSFP readout (3D bSSFP) is commonly used; however, these images can be limited by blood pool inhomogeneity and exaggeration of meta...

Stereo x-ray radiography attracts increasing attention in major clinical applications. The purpose of this paper is to analyze the 3D localization error for breast biopsy procedures and provide guidelines for improving its accuracy. Our prototype is a CCD based digital stereo x-ray imaging system. The mathematical model consists of two x-ray sources and one stationary detector plane. A closed f...

This paper reports on an experimental microassembly workcell developed for efficient and reliable 3D assembly of large numbers of micromachined thin metal parts into micromachined holes in 4 inch silicon wafers. The major objective is to integrate techniques of microgripper design, microscopic imaging and high precision motion control to build a prototype system for industrial applications. The...

Fluorescence imaging is a powerful technique with diverse applications in intraoperative settings. Visualization of three dimensional (3D) structures and depth assessment of lesions, however, are oftentimes limited in planar fluorescence imaging systems. In this study, a novel Fluorescence Imaging Topography Scanning (FITS) system has been developed, which offers color reflectance imaging, fluo...