The formation and evolution of clouds are associated with their thermodynamical microphysical progress. Previous studies have been conducted to collect images using ground-based cloud observation equipment provide important characteristics information. However, most this cannot perform continuous observations during the day night, field view (FOV) is also limited. To address these issues, work ...

Introduction. The aim of this study was to discuss the radiation doses associated with plain radiographs, cone-beam computed tomography (CBCT), and conventional computed tomography (CT) in dentistry, with a special focus on orthodontics. Methods. A systematic search for articles was realized by MEDLINE from 1997-March 2011. Results. Twenty-seven articles met the established criteria. The data o...

Physical and computational constraints limit the spatial resolution and field-ofview (FOV) achievable in any single sensor. In the human eye, a compromise has evolved in which resolution is high near the optical axis, falling off with eccentricity. The success of this design depends upon visual mechanisms for rapidly detecting interesting events in the periphery and motor mechanisms for accurat...

Small satellite payloads commonly involve missions with multiple field-of-view (FOV) capability. For these missions, it is often desirable that the payload instrument contain optical sensors with both a wide FOV for searching or scanning a scene and a narrow FOV to interrogate and identify the object of interest. This generally requires multiple sensors or a zoom lens with multiple moving lense...

Fast, collision-free motion through unknown environments remains a challenging problem for robotic systems. In these situations, the robot’s ability to reason about its future motion is often severely limited by sensor field of view (FOV). By contrast, biological systems routinely make decisions by taking into consideration what might exist beyond their FOV based on prior experience. In this pa...

Here we describe the application of a multiple camera planar particle image velocimetry (PIV) measurement to achieve a large field of view (FOV) in a high Reynolds number turbulent boundary layer. Measurements are performed over a FOV of 0.8m × 0.5m (2.25δ × 1.4δ, where δ denotes the boundary layer thickness) in the streamwise and wall-normal directions respectively in a turbulent boundary laye...

University of Illinois, USA We will report the design and performance of a MR-compatible SPECT system that utilizes a dual-FOV aperture design for microscopic SPECT imaging of small animals inside an pre-existing MR scanner. The MRC-SPECT-DF system consists of a full ring of high resolution CdTe detectors and an aperture that consists of dual-FOV aperture system design that has two sets of aper...

Abstract Fusarium wilt, caused by the fungus oxysporum Schlecht. f. sp. vasinfectum (Fov) is a destructive soil-borne cotton disease. To profile genes and pathways responding to Fov infection, we compared transcriptomic responses before after F. inoculation in highly resistant cultivar, Yumian21, susceptible Jimian11. Although overall gene expression pattern was downregulated both cultivars, gl...

Near-Lighting Endoscopes are self-illuminated cameras often used in minimal invasive surgery. Since they have a wide field of view, their images are affected by high radial distortion(RD) and reduced resolution in the periphery of the image. Perspective Shape From Shading has been used for reconstruction but suffers from the problem of resolution and high RD when endoscopes are used. We propose...

Within the solar system, X-ray emissions have been detected from every planet except Ice Giants: Uranus and Neptune. We analyze three archival Chandra observations of (each 24–30 ks duration) to date: a stand-alone Advanced CCD Imaging Spectrometer (ACIS) observation on August 7, 2002 two High Resolution Camera (HRC) November 11 12, 2017 coordinated with optical observations. For earlier ACIS o...