نتایج جستجو برای: rotational cube technique

تعداد نتایج: 649049  

2000
Sidney Fels Eric Lee Kenji Mase

This paper presents an interactive video visualization technique called video cubism. With this technique, video data is considered to be a block of three dimensional data where frames of video data comprise the third dimension. The user can observe and manipulate a cut plane or cut sphere through the video data. An external real-time video source may also be attached to the video cube. The vis...

2013
Samuel Hetherington Viki Roberts James Gill Kyle Mclean

The optical alignment of the star trackers on the Global Precipitation Measurement (GPM) core spacecraft at NAS A Goddard Space Flight Center (GSFC) was challenging due to the layout and structural design of the GPM Lower B us Structure (LBS) in which the star trackers are mounted as well as the presence of the star tracker shades that blocke d line-of-sight to the primary star tracker optical ...

2005
B. Jutzi U. Stilla

In this paper we describe investigations for digital recording of received laser pulses and a detailed analysis of the pulse waveform. In contrast to previous works using a single photon detection technique, we now focus on multi photon detection. An experimental system was constructed using an airborne laser scanning system and a receiver unit wih an appropriate sampling rate for a fast record...

Journal: :Physical chemistry chemical physics : PCCP 2014
Kirill Prozument G Barratt Park Rachel G Shaver AnGayle K Vasiliou James M Oldham Donald E David John S Muenter John F Stanton Arthur G Suits G Barney Ellison Robert W Field

A Chirped-Pulse millimeter-Wave (CPmmW) spectrometer is applied to the study of chemical reaction products that result from pyrolysis in a Chen nozzle heated to 1000-1800 K. Millimeter-wave rotational spectroscopy unambiguously determines, for each polar reaction product, the species, the conformers, relative concentrations, conversion percentage from precursor to each product, and, in some cas...

2017
Ersan ÇIÇEK Mustafa Murat KOÇAK Sibel KOÇAK Baran Can SAĞLAM Sevinç Aktemur TÜRKER

Objectives The aim of this clinical study was to evaluate the influence of the instrumentation techniques on the incidence and intensity of postoperative pain in single-visit root canal treatment. Material and Methods Ninety patients with single root/canal and non-vital pulps were included. The patients were assigned into 3 groups according to root canal instrumentation technique used; modifi...

1996
Soo-Chang Pei Ji-Hwei Horng

The Hough transform technique has been applied to detect rotational symmetry by Raymond K.K. Yip[l]. H e proposed an 0 ( N 3 ) algorithm, where N is the number of edge points in the input image, t o extract global o r local features of rotational symmetry in the presence of noise and occlusion. In this paper, we follow the Yap’s concept and design a simple and eficzent algorithm, which can dete...

2013
Scott Ronald. Newman Robert Claude. Gauthier

A Fourier-Bessel equivalent of the plane wave technique is employed to theoretically analyze a circular photonic crystal structure containing both radial and rotational periodicity. The presence of the 12-fold rotational symmetry in the dielectric profile results in a 12-times reduction in the order of the matrix diagonalized when cast using the Fourier-Bessel basis functions. In addition, the ...

Journal: :Applied optics 2008
Kyoji Matsushima

Rotational transformation based on coordinate rotation in Fourier space is a useful technique for simulating wave field propagation between nonparallel planes. This technique is characterized by fast computation because the transformation only requires executing a fast Fourier transform twice and a single interpolation. It is proved that the formula of the rotational transformation mathematical...

Journal: :International journal of radiation oncology, biology, physics 2015
Justin Roper Vorakarn Chanyavanich Gregory Betzel Jeffrey Switchenko Anees Dhabaan

PURPOSE To determine the dosimetric effects of rotational errors on target coverage using volumetric modulated arc therapy (VMAT) for multitarget stereotactic radiosurgery (SRS). METHODS AND MATERIALS This retrospective study included 50 SRS cases, each with 2 intracranial planning target volumes (PTVs). Both PTVs were planned for simultaneous treatment to 21 Gy using a single-isocenter, nonc...

2017
Yazeed Alaudah

The coherence attribute is one of the most commonly used attributes in seismic interpretation. In this paper, we propose building on the recently introduced Generalized Tensor-based Coherence (GTC) attribute to make it directionally selective. This directional selectivity is achieved by selecting a directional Gaussian preprocessing kernel and applying a 3D rotational matrix to its covariance m...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید