نتایج جستجو برای: keywords misalignment

تعداد نتایج: 1981720  

Journal: :ELCVIA Electronic Letters on Computer Vision and Image Analysis 2015

2016
Jonathon A. Nye Dana Tudorascu Fabio Esteves John R. Votaw

Myocardial perfusion studies suffer from artifacts caused by misalignment of the transmission and emission data due to the influences of voluntary and involuntary patient motion. Regardless of 68Ge or respiratory-averaged CT based attenuation correction and good patient cooperation, approximately 21% of perfusion studies exhibit artifacts arising from misalignment that cannot be corrected by ma...

2017
Eric M. Moult Andras Lasso Tamas Ungi Csaba Pinter Mattea Welch Gabor Fichtinger

In tracked ultrasound systems, temporal misalignment between image and tracker data results in incorrect image pose. We present a fully automatic temporal calibration. We image a flat plate in water with a tracked probe undergoing periodic uniaxial freehand translation. Using robust line detection scheme, we compute temporal misalignment as difference between probe and corresponding image posit...

2010
S. Cavalier M. Heller P. Puzo

For luminosity and proton-proton total cross section measurement, the standard LHC Physics optics has been modied for the ATLAS experiment in the so-called High Beta optics with β*=2625 m. The high beta optics takes into account the whole LHC ring. Protons are tracked from the interaction point to the detectors. Tolerances on the β* are given and the effect of misalignment errors is checked. W...

2008
Yong-Soo Seol Dong-Joo Kim Han-Woo Kim

This paper proposes an emotion recognition system. Human emotion can be expressed through many kinds of medium such as speech, image, facial expression, and so forth. This paper focuses on the textual data of them. Proposed system is a hybrid system that uses alternatively two methods, keyword-based and machine learning method. Keyword-based methods are traditional approaches using emotional ke...

2001
Arcangelo Merla Luigi Di Donato Giuseppina Farina Simonetta Pisarri Michele Proietti Felice Salsano Gian Luca Romani

Infrared Functional Imaging was applied to the study of Raynaud’s Phenomenon obtaing a simultaneous assessment of the thermal properties of all five fingers of both hands of a group of patients with respect of a control group. The method is based on the use of high-resolution telethermography imaging and allows identification of objective parameters from the re-warming curves of finger immediat...

2008
Ichihiro YAMADA Kazumichi NARIHARA Takashi MINAMI Hisamichi FUNABA Hiroshi HAYASHI Toshikazu KOHMOTO

In order to measure reliable electron densities of fusion plasmas by using Thomson scattering system, both accurate absolute calibration and long-term stability in the system are required. Even if slight misalignment of some optics occurs, it may cause large errors in measured densities. We propose a new method to obtain correction factors to the errors originated from misalignment by using ste...

1998
C. Hagmann

We have studied numerically the evolution and decay of axion strings. These global defects decay mainly by axion emission and thus contribute to the cosmological axion energy density. The relative importance of this source relative to misalignment production of axions depends on the spectrum. Radiation spectra for various string loop configurations are presented. They support the contention tha...

2010
Özgür Kafali Federico Chesani Paolo Torroni

This paper studies misalignment of commitments associated with temporal constraints. We propose a diagnosis algorithm where agents reason based on the current states of their commitments. We also provide an alignment policy that can be applied by an agent when the diagnosis algorithm identifies a misalignment. We formalize a delivery process from e-commerce using REC, and present a case study t...

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